Highlights 1， Support 90 mins wireless charging. 2， The AmazFit is equipped with Bluetooth 4.0 ，15mAh battery which can last up to 10 days. 3， Multifunctions: passometer，fitness tracker，sleep tracker，mood tracker，message reminder，call reminder etc. 4， Water proof IP68 can bring user more convenience. 5， It syncs with your smartphone \/ tablet via the company's Mi Fit application. 6， You can view real-time physical activity through mobile applications and you can identify more sports through the clouds. 7， The Xiaomi AmazFit is different with Mi Band. 8， The donut-looking module is made of zirconium oxide ， resistant to extreme heat. 9， AmazFit can be used as both a bracelet and a pendant. 10，It can be compatible with devices such as Xiaomi and android iOS devices etc. App name: Mi Fit; directly search and download at Play Store or Apple Store Notice: This AmazFit - Moon Frost could wear different wristbands or necklaces ， you could order these accessories additionally if you needed. Basic description Brand XIAOMI Model AmazFit - Equator Color Black Quantity 1 Piece Compatible Android 4.4 with Bluetooth 4.0 ，iOS 7 and above Specification Input Voltage DC 5.0V Battery Capacity 45mAh Battery Type Lithium Polymer Input current 25mAh (TYP) Alloy Body Dimension 36 x 14 x 9mm Alloy Body Shell Material Polycarbonate Wrist Strap Material Dow Coning TPSiV Metal Face Material Magnesium Aluminum Alloy LED Notification Light Black Language English Function Passometer，Fitness Tracker，Sleep Tracker，Mood Tracker，Message Reminder，Call Reminder，waterproof Waterproof IP68 Standby time Up to 30 days Wrist Strap Length 225mm Adjustable Wrist Strap Length 157mm ~ 205mm Net Weight 14g Package included 1 x AMAZFIT bracelet 1 x Charging cable 1 x Chinese user manual