4K resolution

4K is a resolution standard in digital cinematography and computer graphics. The name is derived from the horizontal resolution, which is approximately 4,000 pixels (this designation is different from those used in the digital television industry, which are represented by the vertical pixel count). There are several different resolutions that qualify as 4K. YouTube is the only video hosting service that allows 4K videos to be streamed as it allows a resolution of up to 4096 x 3072 (12.6 megapixels).

4K resolution movie sample -