Question: are all 4k tvs uhd?
Answer: UHD quadruples that resolution to 3,840 by 2,160. It's not the same as the 4K resolution made above — and yet almost every TV or monitor you see advertised as 4K is actually UHD. ... A diagram illustrating the relative image size of 4K vs. 1080p — except that 4K should be labelled UHD, or 2160p.