Ultra HDTV / UHDTV / 4k TV In Spain
Ultra-high-definition television is also known as Ultra HD, UHD, and UHDTV.
There are two resolutions defined as UHDTV:
4K UHDTV (2160p) is 3840 pixels wide by 2160 pixels tall (8.29 megapixels), which is four times as many pixels as 1920×1080 (2.07 megapixels).
8K UHDTV (4320p) is 7680 pixels wide by 4320 pixels tall (33.18 megapixels), which is sixteen times as many pixels and four times the spacial resolution of current 1080p HDTV