4K Ultra-HD (2160p)
A collection of UHD 4K resolution wallpapers. 4K refers to a horizontal resolution of 3,840 pixels and vertical resolution of 2,160 pixelz for a total of 8.3 megapixels. The exact resolution is 3840×2160, otherwise known as 2160p. It has twice the horizontal and vertical resolution of full HD 1080p, with four times as many pixels.