Amazfit Active 2 Square was launched in India with a 1.75-inch AMOLED display. It has a BioTracker 6.0 PPG sensor for monitoring heart rate, sleep. It supports Bluetooth calling. The smartwatch offers more than 160 sports modes. It has Bluetooth 5.2 and BLE connectivity.Amazfit Active 2 Square was launched in India with a 1.75-inch AMOLED display. It has a BioTracker 6.0 PPG sensor for monitoring heart rate, sleep. It supports Bluetooth calling. The smartwatch offers more than 160 sports modes. It has Bluetooth 5.2 and BLE connectivity.