VR and MR Device Analysis

VR Devices

I have compiled a table featuring 4 popular VR devices, as well as their respective specifications, for ease of comparison. These key specifications, including Degree of Freedom (DOF) and Field Of View (FOV), were chosen as basis of comparison due to their high relevance and importance in providing immersion in the VR experience.

SpecsPlaystation VRValve IndexNintendo Labo VROculus Quest 2
CategoryTetheredTetheredStandaloneStandalone
Degree of Freedom6DOF6DOF3DOF6DOF
Field of View100°130°110°90°
Resolution (pixels)1920 x 10802880 x 16001280 x 7203664 x 1920
Refresh Rate120hz144hz60hz90hz
Cost (USD)29999979.90299

Favourite VR Device: Oculus Quest 2

I ultimately favoured the Oculus Quest 2 over the other choices due to several reasons:

Firstly, it is a standalone VR headset and has a built-in display and audio processor, and using it is relatively hassle-free. This is opposed to the tethered playstation VR and Valve Index, which requires it to be connected to a PC to work.

Of course, I understand that tethered headsets are able to leverage on the powerful PCs to provide higher quality immersion. For example, the Valve Index is considered a higher-end headset of choice, and is able to take advantage of the PC’s computing power to push high refresh rates up to 144hz. It is also able to perform individual finger tracking with its controllers as well:

Finger Tracking on Valve Index

Despite the fact that tethered VR headset can supposedly provide more immersion, I identify as a casual VR user and do not see the need to invest in a high-end VR set at the moment. I believe that the Oculus Quest 2 is good enough for my needs in exploring the field of VR, and appreciate the fact that I can use the headset without much prior set up.

Secondly, I value the 6DOF that the Oculus Quest 2 provides. I’m not just young and dumb, I’m also broke. Hence, as I invest my money into Oculus Quest 2, I also expect a good level of immersion, which I believe can lead to a good level of presence. While VR headsets like the Nintendo Labo VR only provides 3DOF (tracking the rotation of your head), the Oculus Quest 2 also tracks your movement with inside-out tracking, a method that uses sensors on the device to scan the surroundings and determine your position. This is opposed to the Valve Index, which requires setting up external base station stands to track your surroundings.

Thirdly, the Oculus Quest 2 provides almost 4K resolution, beating the others in this area. Having a higher resolution can truly enhance the immersion, and make me temporarily forget about my sad, sad life. Hence, increasing the presence of the VR experience.

Lastly, I believe that at $299, the Oculus Quest 2 is worth it. While the cheapest on the list is the Nintendo Labo VR, it’s specs are (unsurprisingly) poorer than the rest, and undoubtedly would provide the least amount of immersion. It is more aimed at super-casual gamers or kids that want to have a taste of VR. The Oculus Quest 2 on the other hand, is reasonably priced given the amount of power it packs. Although the playstation VR is priced similarly to the Oculus Quest 2, I will still go with the Oculus Quest 2 because it is a standalone headset.

MR Devices

Below are 2 MR Devices that I think are great:

SpecsMicrosoft Hololens 2Magic Leap One
CategoryStandaloneStandalone
Degree of Freedom6DOF6DOF
Field of View52°50°
Resolution (pixels per eye)2048 x 10801280 x 960
Refresh Rate120Hz120Hz
Cost (USD)$3500$2295

Favourite MR device: Microsoft Hololens 2

I believe that both devices listed have their merits. However, I decided to go with Microsoft Hololens for these reasons:

Firstly, as a casual user of MR technologies, one of my main focuses is the ability to run interesting and fun programmes on the device. The Microsoft Hololens 2 is developed by Microsoft and the Magic Leap One is relatively new, developed by Magic Leap. The Microsoft Hololens 2 is able to run programmes that were developed for the original Hololens, while there is stark lack of content for the Magic Leap One. This is important to me because I like to keep things fresh and new and having few programs to choose from will cause the novelty to wear off.

Next, while the Magic Leap One has hand-tracking, it also provides a controller for the user to use, which is great in itself. But I’ve also read that the Microsoft Hololens 2 doesn’t even need controllers, and relies solely on hand-tracking via cameras on the device, and has significantly better hand tracking, even being able to “identify [the user’s] ten fingers with ease”. This provides the user with more immersion as it can better simulate real life, most likely leading to higher presence.

Also, just by looking at the specifications, we can see that the Hololens 2 beats the Magic Leap One on two important factors: Field of View and Resolution. This is what makes the Hololens 2 a better quality MR device, increasing the immersion.

While the Microsoft Hololens 2 would naturally cost more ($3500) compared to the Magic Leap One ($2295), I feel safer investing in a product developed by a well-known brand in Microsoft. Furthermore, the Hololens 2 is already their second edition of the Hololens series, which shows how Microsoft already has much more experience in building, giving them an added advantage in enhancing their MR device as compared to Magic Leap.

Homework 1 – Which VR/MR Headsets Do I Like?

Disclaimer: I haven’t had the opportunity to try any headsets at all 🙁 So take all I say with a huge sprinkle of salt.

Practicality/Affordability – I think it is important

I like practical stuff. I would like VR tech that is able to be adopted in some form by the masses. So TLDR: cheap.

VR headsets have come a long way. I remember being amazed at the Kickstarter of the Oculus Rift quite some years ago. It was kewl tech, and they promised it would go mainstream soon. Heck, even John Carmack (The Doom guy, but not the Doomguy) was in on it.

But since that time I have never even gotten the chance to touch a Headset before lol. High cost of entry (expensive) and not useful enough for what it does, given the high cost. Also perhaps I’m just poor.

There is also an issue where buying a VR headset is more of buying a service /experience as opposed to buying a tech. Perhaps VR headsets should be rented instead of sold. Otherwise it is a financial risk to the curious individual who may wish to try it out but is not sure about long term viability.

Grading Criteria for the headsets:

  1. Practicality: Is the gear practical to use? Is it clunky? Does it solve a problem? Comfort?
  2. price point: Consumer products should have low price point to be sufficiently affordable. Enterprise products should have appropriate price point for their target market.
  3. Tech: Is the tech significantly better than the last generation/competitor? Is it innovative? We aren’t just talking graphical fidelity or resolution here; we are interested in things like latency and framerate and subjective matters like nausea too.
  4. Compatibility: Can play the gamessssssss

Favorite VR Headsets

Winner: Valve Index

Pros: Apparently the best VR headset money can buy right now. With tech like this it might be wise to get the best, due to better support and everything… You pay for what you get, probably. One might use the Iphone vs budget Android in 2012 analogy here. If you can afford a PC for VR you should probably get a decent headset. Also, came out with Halflife Alyx.

Cons: Why is it so expensive 🙁

Budget runnerup: HP Reverb G2.

If you can’t quite afford the top tier HMD you should get this. It does not have significant problems except for “disappointing” tracking performance. But I’m sure you would learn to live with it, given its not exactly deal-breaking.

Favorite MR Headsets

Winner: Hololens

Pros: Microsoft invested in this tech a lot, and you can see many demos of this tech, from game demo to Medical tech. If you are buying this, you are probably an enterprise customer or a partner of Microsoft, in which case, a ecosystem and support from Microsoft would be very beneficial to your development and research work.

Cons: Wow many expensive, much dollars. If it is anything like some Microsoft products you know it possibly could be dead after a few years x.x

ETC

Can we have an opensource standard for HMD plz. New tech keeps getting centralized/consolidated and its very sad.

-Alexis

Latest Device Analysis For VR/AR/MR

As technology develops and advances , the demand and potential in VR/AR/MR increases tremendously. Their sole purpose are no longer just an entertainment tool(e.g games) as they are increasingly being introduced into professional fields. For example, VR has been used for virtual room tour in real estate industry as a solution to overcome the COVID-19 epidemic which caused real-world home tour almost impossible.

According to Chinacourt.org(in Chinese), a legal news website run by the State Council, mentioned that between 1 Jan 2020 and 4 March 2020, “about 110” Chinese property companies (mostly small to medium sized) have gone bankrupt in 2020

However, “Beike”, an online Chinese real estate brokerage service, that has found success, as well as survived in COVID-19 period with the help and innovation from VR.

An example of an 3D overall view of a display room in Beike App
An example showing 360 degree VR view of a display room in Beike App

As a result, VR/AR/MR are truly the technology of the future, today.

In this post, i will first state some of the latest VR/AR/MR technologies available in the market and elaborate further on some of the interesting one, as well as my personal picks. Without further ado, let’s begin!

Some of the Latest Technologies

VR CAVE

So you may wonder what is CAVE stand for ? Well, it is an acronym that stands for Cave Automatic Virtual Environment.

It is a virtual reality space where the walls, the floor and ceiling, act as giant projection surfaces to create a highly immersive virtual environment. It is composed of several projectors mounted on racks, and directed by Computers with professional graphic cards.

In order to experience CAVE, users will need to equip themselves with stereoscopic glasses and interact with projected visual content. The VR glasses are attached with tracking devices to provide signals to the computer on how to adjust the projected images as users walk around the environment. In details, the perspective is calculated in real time to match the user’s point of view.

One of the advantages that CAVEs have as compared to normal Head Mounted Device (HMD) is that they offer users complete freedom of movement and a greater field of vision.

Another advantage is that it enhances collaboration capabilities with its 1-to-1 display scale. As a result, it is the ideal place to share experience/information to stakeholders, which also leads to enhancement in the decision-making process.

Photo by ST Engineering Antycip

However, VR CAVEs are built and design targeting in the professional fields such as crisis management training and the “CAVE” is just too big and not portable for normal uses.

Oculus Quest 2 (My Preferred VR Choice)

As a result, Oculus Quest 2 that developed by Facebook is my number one choice for VR device.

The price of Quest 2 is reasonable starts at USD$ 299. It is a standalone headset that installed with the highest-end processor, the Snapdragon XR2. It is also a made-for-VR chip which includes some additional features that make it even compatible for VR usages.

Quest 2 has a per-eye resolution of 1832 x 1920(3.5 megapixels) with ‘screen door effect’ removed. This makes the graphic display in Quest 2 feels a bit more real than its previous version (Oculus Quest) and other VR devices.

Explanation: The screen door effect is a mesh-like appearance that occurs where visible gaps between pixels are seen on an electronic screen, usually when viewed at close proximity. 

Quest 2 has hidden integrated speakers that allow audio to emanate from the headband. As a result, user will no longer need to wear an additional headphones to get that maximum immersion from Quest 2.

Last but not least, as mentioned before, Quest 2 is a standalone device, unlike HTC Vive Cosmos(require PC connection to work) and PS VR (require PlayStation 4 to work). Therefore, Quest 2 offers the greatest physical freedom by completely removing the cables and not requiring any external device to handle processing.

Overall, Oculus Quest 2 consist of most of the required features and standard that a user can expected at its reasonable price. Therefore, if i would like to get a VR headset for myself, i probably will go for Oculus Quest 2.

Mojo Vision’s Augmented Reality Contact Lens

In 2020, Mojo Vision has announced their plan to build the world’s first true smart contact lens, called the Mojo Lens. This Mojo Lens consists of the smallest densest dynamic display yet, the world’s most power-efficient image sensor optimised for computer vision, a custom wireless radio , and motion sensors for eye movement tracking and image stabilisation.

The main highlight of the Mojo Lens is the 14K Pixel Per Inch (PPI) display that produce a world-record pixel pitch of over 14000 ppi and a pixel density of over 200Mppi, making it the smallest, densest display ever designed for AR technologies.

In my opinion, this is definitely a huge leap from the current VR/AR/MR technologies. However, such technologies might take some time to mature and get accepted by the public. Since nobody are willing to put something digital into their bare eyes. Nonetheless, i felt that Mojo Vision could plays an important role in advancing and maturing the field of VR/AR/MR technologies.

Nreal Light (My Preferred Choice For MR)

Nreal Light is an affordable MR glass that is light (as the product name shows), fashionable. It is also very comfortable to wear as it comes with 3 types of nose pads, so that user can attach accordingly to the device that fits their nose the most. In my opinion, comfort is an important factor in the design of the MR devices as i believe that one day, everyone will wear it from day to day.

Front view of the device

Moreover, it comes with integrated audio, this also means that it does not requires you to plug in your own set of headphones through an external jack.

It also consist of a feature where user can actually connect glasses to the USB C port of their laptop or computer so that user’s computer will detect the glass as the secondary display and so mirroring the content of user’s PC on the glass is made possible with Nreal.

Of course nothing is prefect and Nreal defintely needs to improve further in future. However, it’s reasonable price and the features. as well as the quality are the main reasons that i picked it as my preferred MR choice. Although Hololens 2 by Microsoft are probably the best MR devices available right now, but it is way too expensive for its price and it is specifically designed for industry use.

Therefore, depending on the purpose of usages, i felt that Nreal Light consist of all necessary functionalities available as well as a fashionable and ergonomic product design, which is why i picked it for my MR choice.

Bonus

Creating Full Sensory Experience

Extended Reality (XR) is commonly used to refer to all types of VR/AR/MR in the aggregate. While i was researching for such articles from google, i came across an interesting article that mentioned about XR with scent unit.

One example is Vaqso, a Japanese company that created a scent unit that can be used/attached with any head-mounted device(HMD). The device contains five cartridges of pre-mixed scents. Surprisingly, one of their scent collection includes one scent called Zombie. Perhaps i guess it is to fulfil the demand in zombie related VR game out there 😛

The Vaqso scent unit attaches to a VR headset and offers five scent compartments to coordinate with a game experience.
Image © Vaqso

Other than scent, Brooklyn-based start-up company Feelreal has developed a mask unit that not only provides scent, but also vibration, heat, wind, and mist to enhance the user experience.

The Feelreal mask unit shown with four types of VR devices; it clips onto the headset, and connects via Bluetooth.
(Image © Feelreal, Source)

All in all, we can see that virtual reality technology has evolved tremendously throughout the years. We can expect more as future is full of possibility.

I am excited and can’t wait to dive into the future with CS4240 Interaction Design for Virtual and Augmented Reality.

Transcending Dimensions: Diving into the world of VR/MR headsets

Disclaimer

As I will be discussing the latest headsets, I will not be including headsets that are currently deprecated or soon-to-be-deprecated!

Examples

The world of VR & MR hardware can be intimidating, and it doesn’t help that manufacturers use complex technical marketing jargon for the purpose of product differentiation. Jargon aside, it is ultimately the immersion and presence that the hardware can provide that triumphs over all.

This article will therefore utilize the 2 main criterion of immersion and presence, to evaluate the latest VR & MR headsets that offer the best user experience.

Immersion

Immersion entails the ability of the headset to engage with the human experiential senses, i.e. vision, auditory engagement, touch etc.

Presence

Presence entails invoking the emotions of the user through putting the user through illusions, illusions that they exist within the virtual space projected by the headset, illusions that the user is really interacting with the entities in the virtual world, etc.

List of Hardware for VR/AR/MR that I think are GREAT

HTC Vive Cosmos

Source: https://www.vive.com/sea/product/vive-cosmos/features/

Type – Head Mounted Display for VR

Specs

  • FOV – 110 degrees
  • Resolution – 2880 * 1600 combined
  • Refresh Rate – 90Hz
  • Display – LCD
  • Audio – Built-in speakers + option to use own headphones
  • Tracking – Inside-out

The HTC Vive Cosmos’s most attractive feature is perhaps its ability to add on additional external (outside-in) tracking devices such as its optional HTC Base Stations to enhance and improve the performance of its pre-existing integrated inside-out tracking capabilities. This provides an extremely holistic and customizable tracking experience for consumers.

Magic Leap One

Source: https://www.techradar.com/sg/news/magic-leap-one

Type – Head Mounted Display for MR

Specs

  • FOV – 50 degrees
  • Resolution – 2560*1920 combined
  • Refresh Rate – 60Hz
  • Display – Waveguide
  • Audio – Built-in speakers + options for own headphones
  • Tracking – Inside-out + controllers

The Magic Leap One aims to differentiate itself from other competitors such as the Hololens 2 by isolating and separating the computing unit, which reduces the weight of the head-mounted unit and reduces fatigue for the user. Furthermore, the Magic Leap One’s was designed with its intended audience to be consumers, which is corroborated by its numerous partnerships with entertainment companies.

Microsoft Hololens 2

Close-up of MEMS (microelectromechanical systems) display
Source: https://www.microsoft.com/en-us/hololens/hardware

Type – Head Mounted Display for MR

Specs

  • FOV – 30 degrees
  • Resolution – 2536*1440 combined
  • Refresh Rate – 240hz (60hz content rate with 4 individual sequential colors)
  • Display – Waveguide
  • Audio – Built-in speakers + options for own headphones
  • Tracking – Inside-out + controllers

The Microsoft Hololens 2 features see-through holographic lenses with light engines. For haptics, it has 4 light cameras for head tracking, IR cameras for real-time eye tracking. Controllers are not needed for this HMD, as the hololens is able to sense and track the user’s hand gestures. This makes for a more intuitive user experience as users are seemingly able to interact with entities projected by the HMD without the use of any additional hardware.

Samsung HMD Odyssey+

Samsung Odyssey Windows Mixed Reality VR Headset Now Available – Everything  You Need to Know
Source: Samsung

Type – Head Mounted Display for VR

Specs

  • FOV – 110 degrees
  • Resolution – 2880 * 1600 combined
  • Refresh Rate – 60Hz, 90Hz
  • Display – AMOLED
  • Audio – Built-in speakers
  • Tracking – Inside-out

Perhaps the most attractive feature of the Samsung Odyssey+ is its AMOLED display, which sets itself apart from its competitors and their generic LCD screens. In theory, AMOLED offers higher peak brightness and color vibrancy as compared to LCD, which may provide a better visual immersion for its users.

The Valve Index

Valve's Index VR headset will ship this June, with preorders starting May  1st - The Verge
Source: Valve

Type – Head Mounted Display for VR

Specs

  • FOV – 130 degrees
  • Resolution – 2880 * 1600 combined
  • Refresh Rate – 80, 90, 120Hz (Has experimental 144Hz)
  • Display – LCD
  • Audio – Built-in speakers + option for using your own headphones
  • Tracking – Relies on external (outside-in) tracking system (base stations), while it is sold with the Valve Base Station 2.0, this HMD is also backwards compatible with previous HTC Vive base stations

Valve Base Station 2.0

Source: https://www.valvesoftware.com/en/index/base-stations

Type – External Tracking Device

The Valve Base Station 2.0 is compatible with the VIVE Pro, VIVE Pro Eye or Cosmos Elite. as well as the Valve Index.

Each base station has a range of 7 meters, each with a FOV of 160 x 115 degrees. Up to 4 base stations can be used at once, for an up to 10m x 10m play space.

My Most Preferred Devices

VR – The Valve Index + Base Station 2.0

Source: https://www.valvesoftware.com/en/index

The Valve Index boasts a wide range of refresh rates, from 80Hz up to an experimental 144Hz. This creates a smooth and realistic visual experience. This is important for the visual immersion aspect of the user’s experience as higher refresh rates offer lesser ghosting, less screen tearing. For fast paced games such as FPS games, higher refresh rates can offer a competitive edge as a result of this smoother experience

The Valve Index also has the widest FOV (130 degrees) amongst all the the other latest VR headsets in the market today, such as the Oculus Quest 2, and the HTC Vive Cosmos. This offers the closest experience to the FOV of the human eye (210 degrees). Although there is still much to be desired, this is the best we have. With a wider FOV, entails a smaller size of black borders that are endemic with VR headsets with smaller FOVs, which contributes to a greater illusion of being in a stable spatial space and physical interaction. These features reduces the chances of a fourth-wall-breaking experience.

The Valve Index also allows for external headphones to be used in lieu of the in-built speakers provided by the headset. This allows the user to fine-tune their auditory experience to their liking and comfort level. For example, using noise-cancelling headphones to create greater isolation from external noise, which improves auditory immersion.

The Valve Index relies on external tracking via base stations. The external tracking system allows for more precise tracking of the user within the play space, being able to triangulate the user’s location within the space in ways that an internal tracking system can’t. The precision to which each gesture is captured adds to the illusion of self-embodiment of the user in the virtual world.

MR – Microsoft Hololens 2

Close-up of MEMS (microelectromechanical systems) display
Source: https://www.microsoft.com/en-us/hololens/hardware

Comparing the Magic Leap One vs Microsoft’s Hololens 2, the Hololens 2 provides an overall more intuitive experience due to its hand-tracking technology. Unlike the Magic Leap One, the Hololens 2 offers a controller-less and hands-free tracking experience which significantly improves the sensory immersion aspect of touch.

Furthermore, since the Magic Leap One’s headset is separated from the computing unit, it requires a cable to be connected to it which introduces fourth-wall breaking inconveniences such as cable drag and microphonic noises.

Lastly, the Hololens 2 boasts a blazing-fast refresh rate of 240hz over the Magic Leap One’s 60hz, which offers an unparalleled visual experience that is smooth and lag-free.

However, we also have to bear in mind that the Magic Leap One’s intended users are everyday consumers, and its $1000 USD price difference as compared to the Hololens 2 is testament to that. As such, although it is easy to chalk up these discrepancies in technical features as cost-cutting measures, the Magic Leap One provides an accessible entry point for the everyday consumer looking to dive into the world of MR.

A Quest for the Best VR and MR Devices

Upon being given this assignment, the first question I thought was how was I supposed to give a concrete and accurate review of a headset without owning one myself? Even so, having used several of them in public demonstrations and going through passionate online reviews in hopes of buying one myself eventually, I had an idea of what I would like for my first headset. There are many different kinds of headsets built for different platforms with their own unique features and purposes. For this, there are several categories of specifications that I have considered while choosing my preferred headsets such as, the price, comfort and ease of use, space needs, productivity and performance, as well as how immersive it feels.

VR, AR, MR, we are spoilt for choice in every category.


VR Devices Considered:

There are many kinds of VR headsets that I have considered, the first of which being Google Cardboard due to its cheap price and extreme portability. This made me consider other mobile VR headsets as well such as the Homido and Zeiss VR One. They are one of the most light-weight headsets under the $100 price range and also do not require any space or lengthy procedures to set up which makes it really accessible. However, headsets such as the Google Cardboard have simple but clunky controls, most include turning your head and staring at a button for some time to click it which isn’t exactly the smoothest experience that you can get. As an entry-level headset, it is still a decent choice that requires little commitment and budget.

It also comes with so many different designs and customizations.


Preferred VR Device: Occulus Quest 2

One of the best VR headsets that are currently available which I would love to own, would be the Oculus Quest 2. It has a very beautiful white design and built-in speakers which are really great. This provides a really immersive experience, eliminating the need for external speakers or additional headsets. Its sleek controllers are also one of the best in terms of comfort and battery life, lasting even longer than the headset’s battery itself. Another feature that I really love about the Oculus Quest 2 is that it has no need for external tracking base stations like the Valve Index. You can set up your playing area by just drawing it which makes it really flexible in my opinion. Its weight has also improved from the previous Oculus Quest along with an affordable price tag of USD 299 to 399.

The best parts of Oculus Quest 2 has got to be the fact that it can be used both as a standalone headset as well as a PC VR headset that is accessible using a fiber-optic cable called the Oculus Link which makes it extremely versatile. Occulus also has one of the greatest software support behind it with a store full of amazing games that you can play as a standalone device. The developers make constant updates with the graphics improving and getting crispier every version. Its resolution and refresh rate is also one of the best in VR devices with at 1832 x 1920 and 90Hz as well as 6 degrees of freedom allowing for greater freedom of movement. In a nutshell, these amazing features make it one of the best choices available in the market right now as an all-in-one VR headset.

A clear improvement in graphics from version 1 to version 23 in Occulus Quest 2.


MR Devices Considered:

The GodView 5K Glasses, an impressive name for such a small device and one of the best in terms of design that I have come across. For one, it does not look like you are wearing a huge block on your head but instead more like a pair of sunglasses which is also what the industry strives for as headsets get lighter and less bulky each year. It is also multi-compatible with most devices and claims to sport a 5K high resolution of 5120 x 2880 pixels. In terms of environment tracking however, it is almost non-existent and is more suited for watching a movie on a big TV screen as it is literally just a screen in front of you. In terms of purpose, it would be perfect as an extended screen that you can use on the go. However, after further research, I found out that this device actually has really bad latency and image quality with a blurring effect on the edges of the video. It also has really bad heat problems which makes it bad for long-term use therefore I’ll be passing on this one as it seems like it still needs a lot of improvements and is too early in its development stages.

The God View, great design but still too early in most aspects.


Preferred MR Headset: Microsoft Hololens 2

After seeing multiple demos and reviews of MR headsets, I have to say, the Microsoft Hololens is one of the absolute best as of current. Firstly, it has one of the best ergonomics and looks extremely comfortable to wear compared to some of the bulkier headsets such as the HP MR Headset. This is also one of the most important categories for me when looking for an MR headset, as bulkier headsets will not allow for long hours of use and an immersive user experience. Moreover, it also has an impressive 2K resolution of 2048 x 1080 pixels. In terms of environment understanding, it has improved spatial mapping capabilities compared to the first Hololens which means it will be able to understand at a faster rate. This, as well as 4 visible light cameras which means that it is able to track more movements, allowing for more interactivity with the environment.

Although I believe that the Hololens 2 is one of the best MR devices currently, I still feel that it is slightly too expensive being priced at $3500 and understandably so, as it is targetted at companies, for business use. Other similar devices such as the Magic Leap One also costs at least a few thousand dollars which is why I feel that they still have ways to go before reaching the consumer market.

All in all, I am excited to see what the industry has to offer in the future and surely we will see leaps and bounds in the development of VR, AR, and MR technologies in the years to come.

Virtual and Mixed Reality Devices Analysis

I will be picking my preferred virtual reality (VR) and mixed reality (MR) devices by doing research on some devices out in the market and making comparisons between them.

Virtual Reality

For VR devices, I will be looking at HTC Vive Cosmos, Oculus Quest 2, and Valve Index.

For the HTC Vive Cosmos, what attracted me is that the faceplate of the device can be changed to use different tracking options. This is great as for some users, they may not be keen to set up base stations. However, since the faceplate is a separate purchase, switching between tracking options comes at a cost, and the other faceplate that is not in use will essentially be e-waste. The device is not exactly cheap as well coming in at USD$699.

Next is the Oculus Quest 2. This device is interesting as it can be used as a standalone device. This is great for people who do not want to purchase a computer just to experience VR. But if the user does have a decent computer, they can choose to connect it to the PC. The price is also very competitive compared to other options, with cost starting from only USD$300. One downside is that the device requires the use of your Facebook account. As we know recently there have been many concerns about privacy, and I know people who do not even have an account anymore due to this reason.

Finally, we will look at the Valve Index. This is the most expensive of the bunch coming in at USD$999. Features wise, the specified numbers are quite impressive. While the resolution per eye is not the best, it has the highest adjustable FOV of up to 130° and the highest refresh rate of up to 144 Hz. Having a high refresh rate is very beneficial as it will be less disorienting, and it will be harder for the user to perceive frame updates/tearing. This allows more users to experience presence easily.

Figure 1. Oculus Quest 2

To conclude, I will say that Oculus Quest 2 is my preferred device due to the low cost of entry, especially with the fact that a strong enough PC is usually needed for a pleasant VR experience. Having a low cost of entry will also allow more VR devices to be in use, allowing for more reasons to invest in VR development. However, I do hope that the requirement of a Facebook account will be removed in the future.

Mixed Reality

For MR devices, I will be looking at 2 very prominent device out there, the Microsoft Hololens 2 and the Magic Leap 1.

For Microsoft Hololens 2, what struck me immediately was the cost, being at USD$3500. But the features are definitely not lacking. It has an incredible resolution of 2048 x 1080 per eye which is important as having a sharp image of a virtual object being displayed in the world will not only make it easier to make out the smaller details, but also provides a truer to life experience as it is harder to discern the pixels. Moreover, users that require prescription glasses can simply wear the headset over it. However, the device can be quite heavy, weighing in at 566g.

Next is the Magic Leap 1. It cost a little lesser at USD$2295. What is interesting about this is that the company decided to separate the computation hardware from the headset and allow the user to wear it at waist level. This makes the headset weigh only 316g. For users wearing glasses, prescription inserts must be purchased. This also means that the user must carry their own glasses around so that they can put them on when not using the headset. The prescription inserts also have a limit to the amount of correction and some people may not be able to use the device.

Figure 2. Microsoft Hololens 2

Overall, my preferred device is the Microsoft Hololens 2. As someone who suffers from a very serious case of myopia, having the ability to use my glasses along with the device is extremely valuable to me. I also believe that the higher resolution display will allow a better experience overall.

Homework #1 – Review of Latest VR and MR HWs

List of VR HWs

Some of the latest Virtual Reality HWs include:

  • Oculus Quest 2
  • Sony PlayStation VR
  • HTC Vive Cosmos
  • Valve Index

Most Preferred VR HW

After reading some reviews to gain a better understanding of the VR HWs, my most preferred VR HW would be the Oculus Quest 2.

In terms of pricing, the Oculus Quest 2 stands at about US$299, which is considered to be one of the lowest in the market. This is true when compared to the HTC Vive Cosmos and Valve Index, although the Sony PlayStation VR comes close to it.

In terms of resolution quality, the Oculus Quest 2 boasts one of the highest resolution out of any VR consumer headset, at 1920 x 1832 pixels per eye. This is compared to the other listed VR HWs at around 1000 x 900 pixels per eye, which barely comes close.

There are also other relatively smaller features or benefits that are either are at least matched by the Oculus Quest 2, or they are not present in the other VR HWs. For example, the Sony PlayStation VR has a latency value of 18ms, which is of an acceptable standard for most users to avoid facing any lag issues. However, the HTC Vive and Oculus Quest are able to match that value as well. In terms of movement tracking, the Valve Index has relatively worse tracking using the Base Stations compared to the Oculus series.

Even when you may potentially consider the HTC Vive Cosmos to be one of the better VR HWs, due to the fact that it is rated equally or potentially even better than the Oculus Quest 2, the price was the deciding factor in me deciding that Oculus Quest 2 is my most preferred VR HW.

List of MR HWs

Some of the latest Mixed Reality HWs include:

  • Microsoft Hololens 2
  • Magic Leap One
  • Various Windows Mixed Reality Headsets (Acer Windows Mixed Reality HMD, Dell Visor, HP Windows Mixed Reality Headset Developer Edition, Samsung HMD Odyssey)

Most Preferred MR HW

After reading some reviews regarding the MR HWs that are listed above, my most preferred MR HW is the Dell Visor.

It is most important to note that comparing the 3 main listed VR HWs, the Windows Mixed Reality Headsets are vastly cheaper compared to the Microsoft Hololens 2 and the Magic Leap One. The former has HWs that are in the 3 digit range, while the latter 2 products are upwards of US$2000. Just based on price alone, it is quite unrealistic to attain the latter 2 mentioned HW. Furthermore, even though they may provide excellent quality comfort wise, some of the Windows Mixed Reality Headsets levels that are almost up to par as well.

In terms of the Windows Mixed Reality Headset themselves, the Dell Visor has the same resolution (1440 x 1440 pixels per eye) as most of the other headsets, such as the Acer Windows Mixed Reality Headset and HP Windows Mixed Reality Headset Developer Edition.

With regards to the overall quality of comfort, the Samung HMD Odyssey and Dell Visor rank pretty similiarly, with the Dell Visor having extra comfort features through removable foam inserts for example, while the Odyssey has a built in headphone that provides 360 degree spatial sound. Both have its perks, but in terms of price, the Odyssey stands at US$499, which is slightly more expensive than the Dell Visor, which comes at US$450 for a set.

Hence, mostly due to price reasons, the Dell Visor is my most preferred MR HW.

Latest Devices for AR/MR

This is a post about my personal review on my most preferred devices for Virtual Reality (VR) and Mixed Reality (MR). I have had some experience in trying on several VR headsets, in particular the Oculus Rift and the Samsung Gear VR. However, during that time the hardware devices made for VR were usually quite heavy to wear and there were other components (such as long wires, controllers) that the user has to equip on as well to complement the entire virtual experience. I remembered that I was facing some difficulty in trying to maneuver around while playing some VR games because of that and also, I was not able to withstand wearing the headset for less than 30 minutes. After conducting my research, I have listed below some of the latest hardware devices for VR and MR that are currently hot in the consumer market right now.

First off, we have the TactSuit X series (X40 and X16) from bHaptics, which is a haptic suit that is VR ready. Wearing the suit allows the user to feel different haptic patterns that are pre-embedded in VR games such as Population: One and Half-Life: Alynx. The TactSuit X40 is able to provide haptic feedback in 40 points (ERM Motors), while the X16 is able to do so in 16 points. The device uses Bluetooth 4.0 and audio ports for connectivity. It has native support for Steam VR and Audio-to-Haptics (technology that converts audio signals into haptic feedback in real-time). For Platform Availability, PS4, PSVR, Xbox are all supported but only for Audio-to-Haptics mode. The playtime is about 18 hours and the time required for a full charge is 5 hours. The weight is also below 2kg (0.95kg for the X16, 1.7kg for the X40).  In terms of Price, it is retailing for the consumer market for $499 for the X40 and $299 for the X16. Enabling Bluetooth connectivity also eliminates many of the nuances that come with using tethering. Another similar haptic suit in the market right now is the Teslasuit, however since the device is mainly targeted towards the enterprise audience so perhaps, we shall leave this one out.

The path to wireless VR gaming has given rise to many companies to develop better VR headsets for extra mobility for the user. One such popular headset is the Oculus Quest 2, which is the successor to the Oculus Quest. With Quest 2, there is a multi-generational leap in processing power with their state-of-the-art Qualcomm Snapdragon XR2 Platform which offers higher AI capability, and with 6GB of RAM. The new display features 1832 x 1920 pixels per eye, which makes VR multiplayer games and productivity apps look even better than before. The game controllers that come with Oculus Quest 2 are designed with better ergonomics and longer battery life. The headset, however, seems to only be able to last between 2-3 hours which is kind of short. If the user is playing some intensive VR games, the battery might drain out fast. In terms of connectivity, the Oculus Quest 2 offers complete wireless freedom, as well as tethered options.  The device only weighs 503g and supports 6 DoF (Degree of Freedom) head and hand tracking through integrated Oculus Insight Technology. The Oculus Quest 2 is retailing at the price of $299, which is in the same price range as the TactSuit above.

Next up in the VR category, is a prototype VR glasses that are currently in development by Panasonic. The earlier prototype was unveiled in CES 2020 before it was further remodeled to an improved version in CES 2021. It is the world’s first High Dynamic Range (HDR) capable ultra-high definition (UHD) VR eyeglasses which boasts a comfortable fit that makes the user feel as if they were wearing eyeglasses. Panasonic’s audio and visual technologies are incorporated into this new device, including signal processing technologies cultivated through the development of video equipment such as TVs, Blu-ray Disc players, acoustic technologies of Technics audio products and optical technologies used in LUMIX digital cameras. It is worthy to note that this new device does not need a headband like conventional VR wearables.  As such, it can be deemed that the intended usage for this set of VR glasses is for productivity apps such as attending online meetings, VR sports viewing or virtual travel experiences, rather than playing VR games.

Preferred VR Choice: Oculus Quest 2 (2020)

My preferred choice for the latest hardware device for VR is by no doubt, the Oculus Quest 2. In terms of immersive experience, the Quest 2 offers the user much greater field of vision (360 degrees) compared to the Panasonic VR glasses (100 degrees). While the TactSuit brings forth the next generation of VR equipment to allow the user to feel haptic feedback on his body, I assume that the entire immersive experience will not be as full dive with the Quest 2 since the Quest 2 offers both audio and visual stimuli. In terms of comfort, to fully enjoy the immersive experience, the Quest 2 comes with a headband and a set of controllers. The Panasonic VR glasses, on the other hand, attempts to alleviate the heavy-weight of conventional VR headsets with a compact and light-weight design that resembles optical glasses. However, the concern of prolonged wear on the VR glasses still remains in question since it is still substantially heavier than a normal pair of glasses and without a headband to hold it in place, the glasses might slide off the user’s eyes. In future, the VR glasses will be the next big thing to look out for because of its attractive portability compared to VR headsets, which can drastically change the way we work. For the TactSuit, the comfortability level seems to be alright as I have watched some videos and people seemed to not have an issue in wearing it. Lastly, for affordability, the Oculus Quest 2 is retailing at an attractive price of $299 USD while the TactSuit X40 is retailing at $499 USD. As the Panasonic VR glasses is still in development and not released for the consumer market yet, the price is still unknown.

Preferred MR Choice: Microsoft HoloLens 2 (2019)

So far, the latest hardware devices for MR are devices that have been released in 2019 (https://www.aniwaa.com/buyers-guide/vr-ar/best-mixed-reality-headsets/). Not much updates have been provided since then for new products. The Microsoft HoloLens 2 is by no doubt, one of the best MR devices right now for the enterprise market.

The field of MR comes with a different set of challenges such as how do you get a wide field of vision even if the user is turning his head away? Some holograms disappear as the user turns around. This greatly disrupts the immersive MR experience for the user. However, the holograms produced by the HoloLens 2 do not clip as much and remains as natural looking as possible. Another challenge is mapping the real life environment into a digital space as accurately as possible. The spatial mapping extensity is improved with the HoloLens 2, as the AI is now able to understand the semantic meaning of space such as what is a couch, what is a human, what is the difference between a window and a wall. This is made possible with an Azure connect sensor in the front of the HoloLens that can scan a room at a much higher level of fidelity and in real-time. In terms of mobility, the HoloLens 2 is a self-contained computer with Wifi connectivity. The ergonomic design of the HoloLens 2 is also amazing as you can see that the engineers designed it for the user to wear it longer than the first version and it is also shaped like a tennis cap. I cannot help but imagine myself wearing that headset because it looks comfortable. The battery life of the HoloLens 2 is about 2-3 hours of active use. Although the battery life is relatively short, we can expect to see future developments of the HoloLens series to improve their battery life.

Review of VR and MR Headsets

VR Headset review:

I have listed down the top VR headsets in the market today, based on their hardware specifications (i.e. graphics and tracking functions) as well as their price points. In my opinion, I think one of the most important considerations when it comes to choosing a VR headset is affordability. The sharpness and clarity of the image produced by the headset is also one of the important aspects that I will look out for as it will influence the gameplay experience. In addition, it should provide users with accessibility to a wide range of games and ideally provide a good amount of eye comfort for long hours of gameplay.

Valve IndexOculus Quest 2Oculus Rift SSony Playstation VRHTC VIVE CosmosHP Reverb G2
TypeTetheredStandaloneTetheredTetheredTetheredTethered
Field of View(Degree)130100 115 100110114
Resolution(pixels – per eye)1440 x 16001832 x 19201440 x 1280960 x 10801700 x 14402160 x 2160
Refresh Rate(Hz)120 (up to 144 in experimental tests)908090-1209090
Hardware PlatformSteamVR/PCSteamVR/PC/Oculus StoreSteamVR/PC/Oculus StorePS4/PS5SteamVR/PCSteamVR/PC/Windows MR
Motion Detection6DOF6DOF6DOF6DOF6DOF6DOF
Price (in USD)999299399399699599

Preferred VR headset:

As an owner of a PS4 and habitual console player, Sony Playstation VR is definitely on the top of my list. Even though its specifications pales in comparison with some of the other headsets in the market, it is still one of the more affordable ones.

The Playstation VR also has an extensive library of exciting games like Until Dawn: Rush of Blood, Five Nights at Freddie’s: Help Wanted, and Beat Saber. Many PlayStation VR games also work with the DualShock 4 controllers, so I don’t even have to purchase any add-on motion control accessories.

Besides its affordability and accessibility to games, the headset incorporates a lot of simple physical measurements so that it can accommodate and be worn comfortably by all the different head sizes of the users. The headset offers competitive gyroscope, tracking, and movement technology that keeps the gameplay smooth, holding its own against VR-centric companies like Oculus and HTC Vive. The setting up of the device is also relatively easy, making it user-friendly.

Although Valve Index seems like one of the strongest contenders in the VR market, offering the widest FOV and the highest refresh rate, and not to mention the Index controllers that feature an advanced grip system for more natural, precise interaction, its price point, however, is hard to swallow. A gaming PC is also needed to pair with the headset and that would be another additional cost. As mentioned in a blog review by theverge, setting up the laser-emitting base stations (i.e. mounted in opposite corners of your play space) and troubleshooting the headset also poses a challenge for amateur players like myself.

As someone who is unlikely to find a lot of time and money to invest in VR, I would likely give Valve Index a pass.

MR Headset review:

Similarly, I have listed down some of the MR headsets in the market today with their hardware specifications. Unlike my preference in the VR headsets, I believe that the importance of the functionality of the MR headsets outweighs their affordability here. As MR headsets can do much more than just gaming, I would choose one that is worth the price. It is a state-of-the-art tool that can significantly improve work productivity and I wouldn’t mind spending the extra money to purchase a good MR headset – especially if it is a bang for the buck.

Headset Name Microsoft HoloLens 2 Magic Leap One ASUS HC102 Samsung Odyssey+ 
Type Standalone Standalone(Connected to lightpack) Tethered Tethered
Resolution(Pixels – per eye) 2048 x 1080 1280 x 960 1440 x 1440 1440×1600 
Field of view (degrees) 52 50 95 110 
Refresh Rate (Hz) 120 120 90 90 
Price(USD) 3500 2300 399 500 

Preferred MR headset

Therefore, the headset that I would prefer most is Microsoft Hololens 2 even though it costs a whopping USD$3,500, they offer a much higher resolution and refresh rate than the other headsets. Furthermore, it is a standalone headset where I don’t have to connect to a laptop or any other devices. I am able to simply don the headset, move freely, and be able to pull up a holographic projection of my emails instantly. There are no wires or external packs to get in my way as the headset is basically a self-contained computer with Wi-Fi connectivity. And that is one aspect that I really like about the headset.

Also, the headset allows you to interact with the holograms very much like real objects due to its advanced hand movement tracking ability. It allows you to touch, grasp, and move holograms in ways that feel natural. You are also able to instantly access the HoloLens 2 securely using just your eyes with voice commands. This even works in a noisy setting through the use of smart microphones and natural language speech processing.

Besides Microsoft Hololens 2, Magic Leap one is also one of the better options in my opinion. The specifications are also a notch better than the other headsets, with better graphics and refresh rates. It is also on the pricier end. Similar to the Microsoft Hololens 2, it is a standalone device, the only difference is that it still needs to be connected to a small device also known as the lightpack, which is basically a wearable computer.

Magic Leap Headset Test Drive: Off Your Phone and Into Your World - WSJ

VR/MR Devices Analysis

VR Technologies

I personally have not experienced many VR/MR devices firsthand, hence I will be taking a look at some of their specifications and making a comparison across some of the interesting technologies I found.

My personal choice would be the Occulus Quest 2 as it is one of the most affordable models out there starting at $299 for the 64GB Model. Apart from the reasonable pricing, there are several interesting specifications to take note of. Oculus improved the frame rate of the Quest 2 from 72Hz to 90Hz, which provides an even more immersive experience as games and content can take advantage of a higher refresh rate to deliver better quality. The battery live is rather significant at about 2 hours of gameplay (or 3 hours video), and the screen resolution reaches up to 1832 x 1920 per eye which is rather impressive for a VR headset. Furthermore, the Quest 2 rather light weighing about 503g, a great improvement from the original Oculus Quest weighing about 571g.

The design and user experience are also important, since a headset may not necessarily be the most comfortable experience for all. The Quest 2 uses fabric strips that are more comfortable and easier to adjust. Additionally, the Quest 2 does offer an extra battery pack that attaches to the Pro Strap, which doubles the battery life of the Quest 2 for longer and better experiences.

More practically, the lower starting price of the Quest 2 compared to other headsets seem to be the strongest attraction in onboarding newer users (like myself) into VR with a reasonably lower investment. Games that are more tech-savvy would definitely note the Facebook-centric platform of the Oculus environment. The Quest 2 is a great personal choice as it has a lower barrier to entry, along with the comfort and performance it provides to the everyday user.

MR Technologies

Although I haven’t tried this physically, the Microsoft Hololens seems to be the industry-leading and most popular choice for many B2B companies. Their expansion and development into their product are well thought and well-integrated amongst various use cases.

Let’s begin with some ergonomics analysis. Fit and comfort is key for the Hololens 2. Although the initial Hololens already came a long way from the early prototypes, it was clearly highlighted by many that comfort wasn’t the best for extended periods of use. One needs to make adjustments to ensure that the best field of view is obtained while maximizing comfort in wearing. In the Hololens 2, there is a more comfortable fit with a dial-in system specifically designed for extended use. The built is designed in a way that the main processor and battery are located modularly at the back of the headset, with the wires running towards the front, improving the weight distribution of the Hololens 2.

The Hololens 2 is capable of tracking up to 25 points of articulation with both hands in space, allowing natural touch and grasping to move holograms. Their impressive eye-tracking technology also finetunes the interaction with holograms. It can detect what you’re looking at and use that data to further improve the user interface which ultimately results in a better field of view. The Hololens 2 has a field of view to about 52 degrees diagonally, which Microsoft claims to have doubled the effective viewing area. There is also an increase in the vertical viewing area, making it taller when looking at tabletop holograms. This impressive improvement in the field of view is a large differentiator across many MR headsets, which puts the Hololens 2 as one of the pioneers in ensuring a better experience. Unfortunately, the Hololens 2 is priced very high, possibly because of the intricate and complex technologies that it incorporates and may not be ready for the everyday user today. A more expensive price point does limit the audience that is able to use it, hence more applications are centred around businesses currently.

Ultimately, the Hololens 2 is successful in maximizing both performance and comfort, while optimizing current technologies such as having more cameras and better sensors around the headset. This is particularly important for headset wearables as it hopefully seeps into the near future where everyday users can harness MR in their daily lives without the hassle of discomfort or performance-related issues.