This is a multi-functional smart bracelet. It has a 0.96-inch TFT screen. It is compatible with iOS 8.0 and above, Android 4.3 and above. It will give you great experience Features:0.96inch TFT screen, easy to see.Classical dial design shows your charming.Support heart rate monitoring and sleep monitoring.Remind you if there is a message or a call coming.Easy to use and great for running and outdoor sports.Durable and comfortable to wear.Support BT 4.0, Android 4.3 and above, iOS 8.0 and above.Water resistant: Daily water resistance (not for showering and swimming).Functions: Time, step count, heart rate, blood pressure, calorie, BT, information reminder, application, sedentary reminder, sleep monitoring, alarm, multiple language.Parameters:Chip: Cortex MO Kernel DA14585Screen: 0.96inch TFTBT: BT 4.0Compatibility: with Android 4.3 / IOS 8.0 and aboveCharge: USB chargingBattery: Polymer lithium batteryBattery Capacity: 90mAhWorking Time: about 7 daysStandby Time: about 10 daysLanguage: Chinese, English, Spanish, French, Portuguese, Dutch, German, Russian, Japanese, PolishFunctions: Step count, heart rate, blood pressure, calorie, BT, information reminder, application, BT camera, raise the screen, sedentary reminder, sleep monitoring, alarm.Specifications:Color: Black / Red / Purple / Dark Blue / Light Blue (Optional)Case Material: TPEBand Material: SiliconeClasp Type: BuckleWater-resistant Level: IP67Dial Diameter: 4.3 1.8cm / 1.69 0.71inDial Thickness: 1.2cm / 0.47inWatchband Width: 1.8cm / 0.71inWatchband Length : 24.5cm / 9.65inWatch Weight: 24gWatch Box Size: 12.5 8.7 3cm / 4.92 3.43 1.18inWatch Box Weight: 44gNotes:Support daily water resistance (not for showering and swimming).Don't press any button in the water. Package Lists:1 Smart Bracelet1 User Manual