LG OLED77GX 77" 4K Ultra HD (3840x2160) OLED Smart TV77Â inches, OLED, 4K Ultra HD (3840x2160), Bluetooth, Voice control, Supports NFC, Mobile app for controlling features, Support for HbbTV, Adaptive synchronization, Supports HomeKit, ALLM, Variable Refresh Rate (VRR), 120 Hz