ACME SW301 Active GPS Heart rate monitor Check your surroundings (pressure, altitude, temperature) Water resistant (IP66) Multi-sport function Pedometer Sleep monitoring Get all notifications directly to your Watch Digital crown Built-in microphone and speaker Vibrating alarm Weather display Voice recorder Colour screen with 1.3\" Battery life: up to 2 days Compatibility: Android 4.4 and above, iOS 8.0 and above, Bluetooth v4.0 and above Wrist size: 14 - 24 cm