Hi Octofox
You will find my answers to your questions below. From 2015 until now, I have bought many HMDs, and I currently have more than 25 in my office.
1.) I have the 58 mm version and it works fine for me on all Pimax devices, including the 8KX.
2.) The sweet spot is fine with the uOLED, as it is for me with the 8KX. It is similar with all HMDs because I spend a lot of time with each one to achieve the best possible comfort, and I have to modify each one to get the best out of it — none of them work out of the box for me.
3.) This is a very subjective question; I will do my best.
In terms of clarity, the 8KX is nowhere near the Crystal, not even the Light or OG; the Super is much sharper. So, the 8KX loses sharpness very quickly when looking left or right, but there is so much more to see because the 160° field of view is much greater. You will not achieve anything near this value. So yes, the text is sharper and easier to read with all the modules, but of course the FoV is smaller.
You will have to experiment with different profiles to minimise distortion, but this is something you will be able to handle.
4.) Yes, it’s there and noticeable, but not a deal-breaker.
5.) I’ve been using the 8KX more in the last couple of VR sessions, and now it’s a problem again. The thing is, when I use the 8KX, my brain thinks, ‘Wow, that FoV is great, but the clarity is low’. As soon as I use the Super, my brain thinks, ‘Wow, that sharpness! But why is the FoV so tiny?’
6.) Yes, this is a real issue for me because I don’t understand why it’s so low. It’s not a form factor like the BSB2 or Meganex, so it should have much better cooling. It would be great to see more brightness. This is the main reason I don’t use the uOLED for racing: it feels like the middle of the afternoon when it’s 12 o’clock and sunny at the Nürburgring.
7.) For me, the 57 ppd is king because it is the only module that can be used with 100% native resolution most of the time, and the sharpness and brightness are excellent. I demonstrated different modules at AWE 2025 in Brussels, and most people were impressed by this module.
My main message is that you have to try it for yourself. Even if 1000 users tell you that the 50ppd or UOLED is best, it could or could not be the case for you.