Comment by Analemma_

Yeah, 4K per eye stops being impressive when it's five inches from your retina and you're trying to read fine text. Pimax has had a 4K/eye device for years already: it's nice but still nowhere near good enough to do things like replace your computer monitor. They're planning to ship a 6K/eye device next year, which will probably still not be enough. The real world has a very high pixel density!