Well FOV is extremely important for VR, and really welcomed for any game or app included 180 vids, or Vorpx. It adds a huge layer of immersion, since current 100 FOV headsets feel like looking through a scuba mask. Once you’ve tried Pimax high FOV, it’s really hard to go back.
However 5k/8k FOV have a few issues. First, they have 3 levels of FOV, low/mid/high. High has a very noticiable distortion on the sides (like a glass border reflection), mid is currently almost invisible but can be noticed, and low is distortion free. The good thing is that low FOV is still much bigger than every other HMD in the market, and it’s completely distortion free, besides it’s actually very easy to adapt to the distortion with time, it like using glasses, the first day you notice the border all the time, in a week you completely forget about it.
The thing is for your use case, you won’t take much advantage of high FOV, since Vorpx FOV is determined by the games FOV options, which normally don’t have over 90-100 FOV. The second issue is that high FOV has higher requirements, so you’ll need a great computer to make a game work on high FOV with Vorpx. The 3rd issue is that Pimax by itself requires a more powerful computer than average, since it has such high pixel panels and FOV, it needs to push a ton of pixels, so a great computer is required. Add to that the parallel projections feature of Pimax, that has a 30% performance hit since canted screens require a software adjustment, and has to be turned on in almost every game or app.
However currently Pimax has done a great job improving performance with a feature called Brainwarp that’s similar to ASW on Oculus and similar solutions on Steam and WMR, together with the option to lower refresh rate to 60hz and lower FOV, it’s actually very usable in many cases.
Also just like 3d vision, to render a game in 3D it hits half the performance of 2d in many cases, and also that for games to look great they need heavy supersampling (I run vorpx vames at 2529×1572 DSR resolution, or 2400p internal Vorpx resolution for them to look good), so add these to the mix, you get a ton of performance hits from every corner.
In my case (intel i5 4670k, 1080ti) with a Pimax 8k, at low FOV, 60hz and Brainwarp on, I can play many games in fullVR mode and real 3D (called geometry 3d or geo3d in Vorpx), but most of them are old. Games that work well in terms of performance for me are for example Bioshock 1/2, Dark Messiah, Half Life 2, Borderlands 1 GOT enhanced, Amnesia, Bulletstorm, Duke Nukem Forever, Firewatch, Metro 2033 Redux, Fallout New Vegas, The Stanley Parable to name a few. Still several games, even old, have mid-low performance like Dishonored, TESO or Shadow Warrior 1. Still those that work are absolutely incredible and really feel like you’re inside the game.
However Vorpx has a home theater mode, that it basically creates a floating virtual screen, and in that case performance is way less important. In full VR mode, low fps will hit your brain hard, since any slow down can make you sick, but in virtual theater mode or floating screen mode, you can play at lower fps just fine, like it was a real monitor or projector. Another thing to have into account is that if you don’t have good VR legs (have your brain trained to detach virtual movement from real movement), you can get really sick with Vorpx when your brain tries to understand why it’s moving (virtual reality) but you’re actually not moving in the real world. It get’s time to get used to it, and it’s even harder with Vorpx since real games move you at very high speeds that your brain takes time to get used to.
So for example, games like Witcher 3 or Batman Arkham Knight are perfectly playable in Vorpx theater mode at 30-40 fps in full real 3D, both reasonably demanding games, however games like TESO can melt your brain in FullVR since they have a hard time hitting 60 fps in real 3d, so head movement and game movement aren’t completely in sync.
Also since Pimax has such a huge FOV, the pixels need to fill a much higher screen size, so even having two 2k screens (5k) or two 4k screens (8k) doesn’t mean it looks a lot better than normal HMDs, and they are comparable to Index in the case of 5k, and close to Reverb in the case of 8K afaik in terms of image quality/SDE.
That’s why I said that for your use case, probably Rift S, Reverb or Odyssey Plus are the best devices. Only VR games really take advantage of the huge FOV of Pimax, but you’re not interested in VR gaming that much as far as I can see.
So for me, I’d put it like this:
1) Rift S for a really good rounded device both for VR and 3d/vorpx/video at a good price, but Facebook walled garden market.
2) Vive Pro for a slightly better, more expensive experience compared to Rift S.
3) Reverb for a extremely good 3d/Vorpx/video experience, average VR experience at a high price, but hardware issues.
4) Pimax for the ultimate VR experience, but very high price, very high requirements, it’s not sold with either controllers and tracking LHs, so you need to get them from elsewhere.
5) Samsung Galaxy Plus: Best entry device that can be found for 300-400 for the full VR kit, very similar image quality to Rift S ( http://360rumors.com/samsung-odyssey-plus-vs-oculus-rift-s-299-399-budget-high-resolution-vr-headsets/ ), average VR experience. The good thing is that it has high availability, and Samsung has a great return policy, so if you don’t like it, they’ll take it back, no question asked in almost all cases.
6) Index: The best case overall VR experience without any compromises, but high price, low availabilty.