Since 4K Movies, Tv, Home theater coming into our market, so why not 4K Player not come-on this market. Now Samsung became a world first company to launch 4K player at the IFA 2015 press conference in Berlin. It is called the Ultra HD Blu-Ray Player (UBD K8500).
This player offers 64 times the color expression and 4 times resolution than any other standard HD player. And it also supports HDR contents in which UHD Blu-ray movies, working with 64 frames/ second.
You can see above image, what the different between Hd to 4K quality. Here main difference is resolution and frame speed per second.