4K UHD viewing offers images that are four times sharper than a standard high-definition picture. That equals four times as much detail for a crisper image, smoother lines and richer colour. Think darker darks, brighter brights and perfect contrast. To watch 4K content, you'll need a 4K Ultra High Definition (UHD) display with a high speed HDMI cable and a device that supports 4K UHD. Explore titles in 4K UHD and watch them on TVs or projectors compatible with 4K media players or directly in streaming on Prime Video.