Truly disappointed. Initially the box only detects 720P from my TV. When I manually change it to 4K 60p, it still looks 720p.
Netflix Ultra 4K HDR videos has HDR logo on it but not Ultra 4K. The playback has HDR but looks 720p fuzzy.
Youtube 4K videos says 4K but again looks 720p. It does not detect HDR, just like the Shield.
Anyone else having the 4K display issue like mine?
The dpi will remain the same, don't expect icons to become smaller when you switch from 720 to 4k.
Use netflix test patterns (search for it on netflix) to check, it sound like it's doing 4k.