Main Functions:Heart Rate Monitor， Time Clock， Pedometer， Calories Counter， Distance， Sleep Monitor， Alarm Alert， Call Reminder， Anti-Lost， Phone Finder， Remote Camera ControlWhen there is SMS， incoming call or message on the connected phone， the TW64 will alert you to read them.When the Bluetooth is disconnected or the phone is out of the Bluetooth distance， the watch will alertSedentary Reminder:Set it to remind you to walk or exercise after a long time sitCount how many steps you have walked， how far you run and how much calorie you consumed. You can enjoy doing sports.System Compatiblity:IOS 7.1 / Android 4.4 or aboveMain Functions:Heart Rate Monitor， Time Clock， Pedometer， Calories Counter， Distance， Sleep Monitor， Alarm Alert， Call Reminder， Anti-Lost， Phone Finder， Remote Camera ControlSensor Model:Gsensor kx022-1020Main Chip: Nordic nRF51822Pulse Sensor: Silicon labs Si1142Vibration Motor: YesWaterproof Level: Life Level Water-ProofDisplay Size: 0.49 inchDisplay Type: OLEDBluetooth Type: Bluetooth 4.0BLE (Low Energy)Material: Watch Shell: Plastic， Strap: SiliconeWatch Size: 41.6x20x12.8mmNet Weight: 25gMaster:Cortex-M4 coreRAM:4MKeys: Single Key: Short Click and Long Press ControlSpecial Feature Light on Wrist UpData Storage: Latest 7 DaysBattery Type: Li-Poly BatteryBattery Volume: 60 mAhWorking Time: Over 7 DaysCharging: 3 Pins Clip ChargeCharge Time: 1 to 1.5 hoursApp Name:MistepHistorical data: store 30 daysTrend Analysis:Day，week，month，year.day and sleepDay data details:Number of steps，calories.distanceChart Analysis:steps curveHeart rate analysis:GraphMotion data details:Duration，number of steps，optional heart rate(Average，maximum)Chart Analysis:step curve，heart rate zonesSleep data details:sleep curve，heart rate curvePackage List:Clock Body*1Strap*1USB Charge Cable*1Manual*1