4K video displays are quickly becoming the de-facto standard for TV displays, and smartphone manufacturers have been able to incorporate 4K video recording as a feature since the end of 2013, with the introduction of the Qualcomm Snapdragon 800 chipset.
Technically, 4K resolution displays are defined as 4096x2160 pixels, though the UHD resolution of 3840x2160 pixels is also referred to as 4K.
In this roundup, we look at ten flagship smartphones that are capable of recording videos at 4K resolution (2160p). The iPhone is conspicuous by its absence—while it can record 1080p video at 60fps (frames per second) and 720p at 240fps, Apple is holding out on this feature until they have it fully tweaked and polished.