The world's first 4K smartphone is the Sony Xperia Z5 Premium from 2015; And now in 2017, Sony had finally announced the successor to the yesteryear model. Introducing the Xperia XZ Premium - the world's first smartphone with a 4K HDR display.
The Xperia XZ Premium comes with a 5.5inch 4K UHD (3840 x 2160 pixels) High Dynamic Range (HDR) display. Featuring Triluminos Display for mobile, X-Reality for mobile, Dynamic Contrast Enhancer and has a pixel density of 806 ppi.
