Description: * 0.9inch OLED large screen, touch control button * Real-time static/dynamic heart rate monitoring * Sports & Fitness: Distance, Pedometer, Calorie, Fitness Goal Setting, Fitness Information Sharing * IP67 Waterproof: waterproof & dustproof, wear it while raining, hand washing, bathing without removal * Call/Message reminder: Vibrate to remind you of incoming call of your iOS & Android phones via bluetooth connection * Sleep Monitor: Track and analyze your sleep quality from the moment you fall asleep, to the length of deep sleep you experience. * Sedentary alert * Time & Alarm clock * Anti-lost: alert when phone exceed the range * Remote Camera: Remotely control your phone camera and extend your selfie distance within 10meters * Bluetooth function * Battery level display Specification: Item Size:43x18x12mm Waist Band Size: 245x20x12.8mm Strap Material: TPU 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:45mAh 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 System: Compatibility:Support Android & iOS phones OS Requirement: Android 4.3 and above, iOS 7.0 and above, bluetooth 4.0 Data Sync: bluetooth 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