for me personally priorities are:
1# comfort
2# colours / contrast / brightness / blacks & overall picture clarity
3# good controllers + tracking (CV1 best, then valve index, lighthouse tracking is supposed to be better but I don’t see almost any difference with Oculus CV1 outside/inside, also Oculus inside-outside is really great, it’s enough for me, I don’t like my O+ tracking)
4# FoV, but current gen HMDs including Pimax don’t feel IRL Fov, it’s just a wide screen it’s better than narrow FoV but still not a dealer breaker for me. Vive Pro, Index FoV is enough for me but it’s eye relief subjective.
5# Modularity & hassle free - I can coupe with tinkering if it can be done & forgot though
6# Audio - I put it at least position as you always can connect your own headphones & print 3d adapters to make it static, so not a big deal though, however sound is really important for immersion.
So just to wanted add my 50 cents, when Index was introduced & everybody was so excited about it, I bought it later in 5-6 months & what was my disappointment when I put it for the first time, don’t get me wrong it’s decent headset but:
- it was so heavy & did pressure on my cheeks, it requires really heavy counterweight to mitigate this issue & becomes more heavy, it’s comfortable overall with counterweight but weight a ton
- vertical pixel patter was so prominent, despite HMD has good colours the dark scenes are just totally bad after coming from OLED devices, so overall picture quality was not bad not good, but lenses implementation did some immersion feeling advantage so I actually enjoyed it a bit later & replayed some my games I didn’t touch for a while. Also LCD screens have jaddies issues (aliasing is worse than on OLED by a lot so picture doesn’t look as a one but as combination of different elements which breaks immersion)
- controllers are good, but seems they have issues, mine started to have issues with thumb stick in 3 month - it sticks on for Y axis, even dead zone doesn’t help, need to dissabmle & clean it, but overall controllers are really good & provide additional immersion feeling & good especially for FPS, but I can’t use it with echo arena though so it has cons & pros
Also Index looks a bit soft for me, I wish it would more crisper, but probably it’s due to vertical lines cancelation algorithm that I started to use.
I liked my 5+ & 5kXR mostly but Pimax’s biggest problem IMO is the poor colours, contrast & brightness (not just brightness but brightness with correct colours reprojection). And seems they ignore this issue for a while.
E.g. for XR they used Odyssey+ & Vive Pro panels but they look on Pimax ugly, I guess it’s not coz of hardware but rather that’s a firmware issue so their engineers just can’t get full potential of panels they use & this is really pity, because it’s really deal breaker thing, they can get some customers by paper characteristics, but they can’t keep many of those because they don’t pay attention to details, especially to colours reprojection, saturation & contrast, as we’ve seen with Index & now with G2 LCD definetely can give good colours, the only problem now for me is poor black, but I guess with QLED it’s more achievable, if not smear & framerates & price I don’t really see any other reason why to use LCD in HMDs at all, coz e.g. Sony with their AMOLED with RGB matrix did the brilliant job with their PSVR considering the resolution they used. Odyssey+ also did some hints with film glued on top of screen so there are a lot of tricks how to achieve a good SDE with OLED screen.