What is 4K (UHD)?
The 4K resolution is an industry standard for movie theaters and is made up of 4,096x2,160 pixels. The difference with UHD is that the row of horizontal pixels is wider because movie theater screens are wider than television screens. Still, 4K is closely intertwined with the TV industry's UHD. During your search for a TV, you can assume that both 4K and UHD refer to the same thing.