Key Features . 43mm ScreenUp to 15 days battery life10 sport tracking modesCalls and Message notificationsRemote music control5ATM WaterproofCompatible with iOS and Android . 1.7 Inch Colorful ScreenThe stylish watch features 1.7 inch square full color touch display providing you a brilliant visual experience. The frame is made of aluminum alloy material for aerospace which is light in weight resistant to low temperatures and high in strength. Up To 15 Days Battery LifeC5 is equipped with 260 mAh large battery that can last 15 days with normal usage and last 30 days with basic watch mode. Enjoy a full week of activity without worrying about carrying a charger everywhere. Health MonitoringC5 features precision 24-hour heart rate monitoring covering heart rate zones and providing warnings when your heart rate is abnormally elevated. You can take ECG recordings. Monitor your sleep including deep sleep. 10 sport modesC5 features 10 sports modes for many outdoor indoor and training activi- ties allowing it to cover the needs of most sports enthusiasts. Control From You WristNever miss any important calls or messages when your phone is not around. Support SMS twitter facebook skype whatsapp wechat instagram. Notification will mirror from your phone. The watch allows you to control the music from your phone without having to use your phone to play or pause the music. 5ATM waterproofC5 has waterproofing that offers protection up to a depth of 10 meters. Reach the level of waterproofing in daily life like rain coffee and tea..