Sony XBR55X850A 55-Inch 4K Ultra HD 960Hz 3D LED TV. 4K Ultra HD four times the clarity of Full HD 1080p; Everything you watch is enhanced for 4K Ultra HD viewing. Wider range and more brilliant colors with Sony's unique TRILUMINOS display. New HDMI 2.0 supported for next 4K video formats. The X850A delivers a picture so clear it's like combining the resolution of 4 HDTVs into one. With over 8 million individual pixels (3,840 x 2,160) compared to about 2 million (1,920 x 1,080) on your current HDTV, your favorite shows have never looked better. Four pairs of 3D glasses included.