Record-breaking battery life: Up to 30 days with regular use and up to 45 days with minimal notifications. Super light weight: Comfortable to wear every day, as well as for sports and sleep tracking. Notifications: Receive notifications for calls, messages, emails, and other apps on the color touch display. Multisport tracking: Track your runs, cycling and more with mapped routes, detailed stats and heart rate zones. Latest technology: GPS, 3-axis accelerometer, optical heart rate sensor, barometer and compass. Always-on display: the reflective color touch screen is always on and provides at-a-glance view for time, date, steps, weather, sports stats etc. Specification: Brand: Amazfit bluetooth Version: bluetooth 4.0 Waterproof: Yes IP rating: IP68 Functions: bluetooth calling: Phone call reminder Messaging: Message reminder Health tracker: Heart rate monitor,Sleep monitor Operating mode: Press button Type of battery: Lithium-ion polymer battery Battery Capacity: 190mAh People: Female table,Male table Shape of the dial: Rectangle Case material: Polycarbonate Band material: Silicone Product size (L x W x H): 19.5*3.5*0.8cm Package size (L x W x H): 5*5*5cm Product weight: 0.0320 kg Package weight: 0.2070 kg Main Features: Sleep monitoring: Carefully monitor your sleep quality Heart rate monitor: Considerate monitor contact designed on the behind of the watch, take care of your health anytime and anywhere bluetooth 4.0: Connected with mobile phone App, stable, fast and super low consumption 1.28 inch with 2.5D Corning Gorilla Glass screen Best suitable screen size with high definition picture displaying gives you great experience Package Contents: 1 x Smartwatch 1 x Charging Cable