I think it's significantly higher than the Quest 3, but it's kind of ridiculous to compare a $3500 productivity headset to a $500 gaming headset in the first place.

It's hard to get totally accurate numbers without independent standardized evaluation. Calculating pixel density isn't as straightforward with headsets as it is with regular displays.

There's an interesting analysis of a bunch of different headsets on Reddit. They put a comparison column for equivalent viewing distance with different common monitor sizes/resolutions. e.g. they calculate that the density of the Apple Vision Pro is similar to a 32" 4K display at a mere 15"/38cm distance, which is definitely close enough to see pixels. These are only estimates, since we don't know the per-eye FOV, or how exactly it's warped from center to edge.

Reddit link: https://www.reddit.com/r/virtualreality/comments/18sfi3i/ppdfocused_table_of_various_headmounted_displays/

Direct spreadsheet link: https://docs.google.com/spreadsheets/d/1_Af6j8Qxzl3MSHf0qfpjHM9PA-NdxAzxujZesZUyBs0/edit?usp=sharing

I mean, it's still really good, don't get me wrong. But there's a giant chasm between "really good" and "the eye's resolution limits".