Sony may be working on a phone with a 5K screen - bearing the model number J8220, it is tentatively named "Xperia 1R". This could be the "Xperia 2" we've been hearing about recently. While its design is mostly unchanged from the Xperia 1, the reports of a smaller 6.1" screen sound even stranger now. The resolution (seen in a UA profile) is 5,040 x 2,160px. It goes without saying that the aspect ratio is 21:9. For comparison, the 6.5" screen on the Xperia 1 has 1,644 x 3,840px. The new 5K screen will have 70% more pixels! UA Profile for the Sony J8220 ("Xperia 1R") showing a 5K...