Resolution: 4K Ultra HD (3840 x 2160) | Refresh Rate: 120 hertz | BRAVIA XR OLED Connectivity: 4 HDMI ports to connect set top box, Blu Ray players, gaming console | 2 USB ports to connect hard drives and other USB devices Sound : 50 Watts Output | Acoustic Surface Audio+| 5.1 Ch - 3D Surround Upscaling | Dolby Atmos | Ambient Optimization | Voice Zoom2 | 2 Subwoofers Smart TV Features: Google TV | Watchlist | Ok Google | Google Play | Chromecast | Built In Mic | BRAVIA CAM Support | Variable Refresh Rate & Auto Low Latency Mode | Additional Features: Apple Airplay | Apple Homekit |Alexa | Gesture Control Display: XR Cognitive Processor | 4K HDR | 4K 120 | XR OLED Contrast Booster| XR Triluminos pro | XR Motion Clarity