Sony is well known brand when it comes on display
but this time sony has done some real hardwork on displys
sony xperia z5 perimuim is is the first phone which comes with 4k ULTRA HD display
I have used it for couple of days and performance is brillent and phone feels very comfortable in hand
if you really want a phone with PREMIUM display and PREMIUM sepcs then xperia Z5 PREMIUM is perfect phone for you.