Heliosurge :
It is amazing how many are stuck on the 5k 8k naming schemes. In VR most are using combined panoramic wide resolution.
-StarBreeze's StarVR 5k (2x1440p)
-Cinelero(sp?) 5k (2x1440p)
Andvtge list goes on.
Of course, it's worth noting that these are all headsets from lesser-known companies trying to make their product sound more technically advanced than it actually is. None of the well-established companies are referring to their headsets by horizontal resolution, and combining the horizontal resolution of two screens side-by-side does not match with any existing standard for 8K or 4K resolution that people might be familiar with. And that's even before we get into upscaling like the Pimax 8K apparently employs.
You don't see Acer marketing their ultra-wide 3840x1600 monitor as "4K", because it's not, and they know that would be considered deceptive advertising. Instead, they refer to it as UW-QHD+. Likewise, these lesser-known headset companies should be using less deceptive ways to refer to the resolution of their headsets. Rather than "5K", simply call it 2x1440p, or in place of "8K", use 2x4K. Or refer to the total pixel count in megapixels.
Aside from that, these might be fine headsets, and it's certainly good to see more competition coming into a field like this and pushing higher resolutions, but these companies might be taken more seriously if they weren't relying on inflated numbers to sell their headsets.