When comparing Three Glasses D2 vs StarVR, the Slant community recommends StarVR for most people. In the question“What are the best VR headsets?” StarVR is ranked 7th while Three Glasses D2 is ranked 9th. The most important reason people chose StarVR is:
With a 210 degree vertical field of view along with a 180 degree vertical view the device can mimic 75% of a normal human's field of view, which is more than any other device claims so far (nearly double that of other high end VR sets). This really helps the wearer feel like they are actually in the virtual world.
Specs
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Pros
Pro Comfortable to wear
The headset is lightweight at just 246g, and can be worn with glasses. It will automatically adjust depending on your pupil distance, and has a low latency at 13ms to help reduce motion-sickness.
Pro Low system requirements required
To run, you only need an Intel i3-540 CPU, nVidia GTX 660 GPU, and 4GB of RAM.
For a better experience, it's suggested you have at least Intel i5-4590 CPU and nVidia GTX980 GPU and 8GB of RAM.
Pro Convenient touch panel
There is a touch panel with a power and menu button built into the side of the device. While there are no menus in the headset itself, games could take advantage of this touchpad, which could be convenient.
Pro Extremely immersive displays
With a 210 degree vertical field of view along with a 180 degree vertical view the device can mimic 75% of a normal human's field of view, which is more than any other device claims so far (nearly double that of other high end VR sets). This really helps the wearer feel like they are actually in the virtual world.
Pro Crisp details
While most VR headsets use 1080p or 1440p resolution, the StarVR uses 2560x1440p per eye (total resolution of 5120x1440 or roughly 5K). This will ensure text is crisp, and shapes don't have jagged edges - helping to immerse users even more into the virtual world.
Pro Eye tracking
Not only allows Eye tracking, the so-called "foveated rendering", but it enables software developers to implement features that include the users gaze. (More realistic avatars, Gaze aiming). In this headset it also is used to automatically set the IDP.
Cons
Con Poor early implamentation
The sensors tend to overcompensate for your movement, which results in motion sickness, and also early demos have had very unstable software. There's time to tweak these before the full launch, but are present as of now.
Con Padding is not adjustable
While the device is wide enough for a normal pair of glasses, the padding is not adjustable meaning those with larger heads or wide set glasses may have trouble.
Con Lots of nausea
There is still time for StarVR to fix this, however currently nausea is a problem which sets in early, and the effects can last for an hour afterwards.
Con May be meant more for commercial use
The manufacturer (Acer) has stated that these device will be seen in commercial settings such as CR theme parks, so they may be priced out of the casual consumers price range.