All the high-end Android smartphones released in the last six months or so have the ability to record videos in 4K resolution. Considering that 4K content and display are still a rarity, having this feature on your $800 smartphone is a biggie.
As it turns out though, there is a slight catch. None of them can record 4K videos at a stretch for more than 5 mins. This includes the Xperia Z2 and the Galaxy S5 as well as last year’s Galaxy Note 3.