From someone who recently tried a pre-production Pimax Crystal at the recent Pimax show in Germany:
I had opportunity to play around with 4 Crystal units at roadshow in Berlin. Very good overall experience, this has a huge potential new VR clarity standard.
Quality is breathtaking.
My VR background: Index, Reverb G1 and G2, 8KX. Some experience with other HMDs (from one hour to few days of use) with following: VP2, VF3, Aero, Quest 2. IPD 71 with slight horizontal and vertical misalignment.
During testing, only 35 PPD lenses were used (42 PPD also available!).
Spent a few hours discussing and testing the units. Very good overall experience.
- Horizontal FOV is a little bit higher than Aero
- Vertical FOV is significantly better than Aero. I tried both, one after another (they had an Aero for testing), but it's hard to tell how big the difference is without measuring it. With the Pimax Crystal, after pushing the facial interface there is a potential for further FOV increase with custom covers or even 3D printed gaskets
- Clarity is comparable or even higher than Aero
- Blacks look much, much better than any VR headset I've ever seen
- Local dimming looks amazing. There was a presentation where local dimming was disabled and then re-enabled via the Pimax Experience menu with a black background. Amazing!
- Edge to edge clarity: comparable or the same as Aero (huge)
Chromatic aberration: not an issue
- distortions: not an issue. I deliberately tried the background with parallel and perpendicular lines (like "#") and distortions were a little bit seen, but only if you really look for them hard. Not seen during text reading, not even worth mentioning for games. Just to be clear, I also didn't have any serious chromatic aberration or distortions with Aero whatsoever so it may be an individual thing.
- Colors are absolutely great
- sweet spot is similar or same as with Aero (huge)
The person mentioned some issues with eye calibration and with some glitches on some PCs but not on others indicating software compatibility issues but that's software stuff, I wanted to focus on the actual headset itself, particularly the screens and lenses.