Sony xperia z5 premium is the smartphone to feature a 4k.the resulting pixel density of 806ppi is well above anything we have seen on a smartphone.
4k is another name for uhd resolution or 2160* 3840.thats an awful lot of pixels something along the line of 8.3 million of them.5.5 inch qhd screen not readily noticeable with our bate eyes .Battery life is 3430 mah battery sealed in as expected.endurance rating of 66 hours.there is alos support for bluetooth 4.1 wuth a2dp.4g network @ cat 6 speeds.microusb 2.0 port for charging and data connection.3gb ram with 32 gb expandable.5.1 lolipop.23 mp .please best phone buy it
