SAMSUNG QE55S95CATXXU 55" Smart 4K Ultra HD HDR OLED TV with Bixby & Alexa: Naturally bright colour with Quantom Dot technology, Object Tracking Sound + for immersive 3D sound, Refresh rate: 120 Hz (Up to 144Hz), HDMI 2.1 X 4, 5 year guarantee, Samsung Smart TV has a largechoice of apps and services