Sony�s top-end flagship and one of the best phones made by the company this year, the XZ Premium, offers best in class hardware specifications along with a 4K HDR display and a 19 MP Motion Eye camera capable of recording 960 frames per second slow motion video.The XZ Premium comes with some killer features to boot but let�s start off with the design. It completes last year�s design by merging two sheets of Gorilla Glass 5, the front and the back, and wrapping it around the phone. This is still a mystery as to how Sony and Corning managed that. The result is phone with a gorgeous almost all glass build. Just like the previous 4K flagship, Z5 Premium, the rear comes with a �premium mirror effect�.