4k uhd-4 times higher resolution than fhd tvs. binge watch your favorite shows, immerse yourself in the latest movies, or thrill in every moment of the hottest games.dolby vision-inspired by cinema technology, dolby vision hdr technology gives an astonishing brightness and contrast depth by 40 times brighter and blacks 10 times darker than standard picture.dts virtual x-enjoy an immersive audio without the need for height speakers, the bass perception engages you into the center of a performance.vidaa u5-an easy, smart and intuitive os, simply access to rich contents and global applications (youtube, netflix and local app etc.), making your tv more interesting.