Yeah when I watched a movie last night. I was just testing Plex app on the X and threw on 300 (bluray) At the beginning of the movie when 300 logo comes on against the blackground I couldnt believe how the logo pop from the screen in the dark. It looked like it was 3d... Watched the first 5 mins and thought it looked great. Jump on my ipad mini 4 (which has one of the best lcd out there) and it was dull (black were dark gray) compare to the OLED display on the X.Do the colours pop? I keep hearing this on reviews.
IF you are talking about just normal usage like home screen, safari it doesnt look any better than what i see on my ipad mini.