innol
This has nothing to do with video resolution.
Very rough calculation:
Quest to 2x1832 pixels for 100° = 36,6 pixels/°
Pimax 8k 2x 3840 pixels for 200° = 38,4 pixels/°
This calculation as said is only very rough, as FOV measurements between headsets often differ (sometimes diagonal, sometimes horizontal) and are only rough estimations, and the true FOV also depends how the headset actually fits your head, IPD and so on. Also not the whole screens are actually covered by the lenses, so there is somewhat less useful resolution then the actual screens provide. Also the sweet spots from the lenses differ and are not easily to put in numbers.
But generally speaking, image clarity should be comparable between the 2 headsets.
A higher resolution video should always be better on any headset, but there is no up to X resolution headset A is better and beyond headset B. The difference between the headsets always will be roughly the same regardless of the video.
And we are also still in a phase where headsets outresolve the videos we watch and not vice versa, so basically any headset will still benefit from higher resolution videos, probably even the first generation.
And this likely will be always the case, because just throwing more pixels into the videos does not necessarily improve details. 8k makes it already quite obvious that sensor resolution does not limit the captured detail, but the optics do for the majority of the image. Newer higher resolution sensors will likely increase the captured detail even less than we see from 6k to 8k.
