Please notice :you can not wear it for swimming , you can wear it wash hands only . Descriptions: 1.0.96inch OLED large screen, for touch control button 2.Real-time static/dynamic heart rate monitoring 3.Sports & Fitness: Distance, Pedometer, Calorie, Fitness Goal Setting, Fitness Information Sharing 4.IP67 Waterproof: waterproof & dustproof, wear it while raining, hand washing without removal 5.Call/Message reminder: Vibrate to remind you of incoming call of your i O S & Andr oid phones via Bluetooth-compatible connection 6.Sleep Monitor: Track and analyze your sleep quality from the moment you fall asleep, to the length of deep sleep you experience. 7.Sedentary alert 8.for Time & Alarm clock 9.Anti-lost: alert when phone exceed the range 10.Remote Camera: Remotely control your phone camera and extend your selfie distance within 10meters 11.Bluetooth-compatible function 12.Battery level display Specification: Item Size:43x18x10mm,1 inch = 2.54 for cm Waist Band Size: 250x19.4x11.9mm,1 inch = 2.54 for cm Strap Material: TPU Charging:USB dire ct charging Color: Black,Dark Blue,Purple,Red,Green Hardware: Display:0.96 inch LED Motor: built in for vibration reminder Heart Rate: can monitor static, dynamic Battery Capacity:80mAh Charging Time:About 1-1.5 hours Standby:Work for about 7days, or standby for about 15 dayss after each full charge Wireless Distance: 5m~10m *Compatible system: Andr oid 4.4 and above; I O S 9.0 and above Bluetooth-compatible version: BT 4.0 and above Screen: 0.96 inch IPS color screen display, single point for touch button Battery: built-in 90mAh battery, charge-time about 1.5 hours, standby-time about 15 days System: Compatibility:Support Andr oid & i O S phones OS Requirement: Andr oid 5.0 and above, i O S 7.0 and above, Bluetooth-compatible 4.0 Data Sync: Bluetooth-compatible data sync to phone app Data Storage: can keep 7-day exercise data APP Compatible Language:Chinese, English, Spanish, French, Portuguese, Dutch, German, Russian Languages supported by news content: Chinese, English, Spanish, German, French, and Portuguese Operation Method:Touch button Condition:New Please Note: 1 inch = 2.54 for cm Our size is Asia size. There is 2-3% difference according to manual measurement.please check the measurement chart carefully before you buy the item. Item color displayed in photos may be showing slightly different on your monitor. Pls Note: 1. after receive the watch ,please charging first.Because after a long period of logistics, the watch has a low battery 2. Do not use the for smart bracelet in sea water, hot water or warm water! 3.Wearable devices monitors human activities through electronic sensors,and they are at the consumer electuonics level.It's normal for certain deviation.The user should treat data objectively. 4.Please do not compared to hospital equipment about reading,it is NOT a med ical device !please don'for t buy for check the for health(heart problem, blood pressure problem) it's not for professional use.Just can be a reference. Product Include: 1*for Smart Bracelet 1* Charging cable 1*User manual