1.32-inch round screen, high-resolution IPS color screen, 360*360 CPU: REALTEK8762DT+JL6963 Battery: 300Mah Support rotary encoder control operation System requirements: Android4.4+ / ios9.0+ Support Bluetooth 4.0 Bluetooth call, app, SMS, notification IP68 Life waterproof support software WearFit pro support multiple languages warranty : Six months replacement