Mibro Watch C4 Smartwatch Display: A large 2.01-inch TFT color screen with a resolution of 240x296 pixels, featuring a 60Hz refresh rate for a smooth navigation experience. Calls: Supports making and receiving calls via Bluetooth directly from your wrist, thanks to built-in microphone and speaker. Battery: 300mAh battery capacity, lasting up to 10 days with normal daily use, All sports modes and waterproof