Question: is uhd better than hd?
Answer: Not just about more pixels, it is about smarter pixels. 4K UHD is more than just more resolution. ... “More Pixels” is the dramatically increased resolution of a 3840 x 2160 set that has 8 million pixels; that's four times more than a 1920 x 1080 HDTV and even more than a 1280 x 720 set.