What I meant to say was the highest pixel density.
The pimax screens are much larger, therefore the pixels are spread out more.
I am not 100% sure that the numbers in this thread are accurate, but if they are, the PPD of the peripheral screen in the new Varjo headsets is roughly 50% denser than that of the Pimax 8K headsets, while the central screen is more than three times as dense.
So the VArjo vr-3 is 70ppd in the inner 27 degrees and about 12ppd outside of that. I get 35.6ppd for the Pimax 8KX. Their 8kx is different than their other headsets as the signal is not scaled and they say the panel utilization is over 95%.
That’s a pretty clever idea for the screen. The human eye only see details in the center area of vision, which you can take advantage of by rendering the images with reduced resolution at the edges to improve performance. But actually building the screen so there’s more pixels in the center and less at the edges also accomplishes the same thing and probably has less compatibility issues.