Sony's 4K Smartphone Is 100% Hype
 

I'm a staunch supporter of modest resolutions in smartphone displays because they allow for greater performance and battery life. Maybe phone manufacturers should actually stick to lower resolutions more often, as people can't even tell the difference between 1080p and 4K in some cases. …reporters playing around with the phones went right on yapping about the Z5's amazing 4K display and Sony's reps didn't feel the need to correct them. You don't need to understand German or French or Mandarin to be able to hear someone calling a phone's screen 4K when it's clearly not.

http://www.hardocp.com/news/2015/09/...hone_100_hype/