Features:Resin CaseStainless Steel BraceletQuartz MovementResin CrystalBlack DialDigital DisplayBluetoothStep Count MeasurementStep ReminderStep Count GraphMobile LinkAuto Time AdjustmentLife Log DataPhone FinderDual Time1/100-Second StopwatchCountdown Timer5 Daily AlarmsHourly Time SignalLED BacklightFull Auto-CalendarButton Operation tone On/OffPower Saving On/OffLow Battery Alert12/24 Hours DisplayMonth, Day And Date DisplayScrewed Case BackDeployment ClaspSplash ResistantApproximate Case size (L × W × H): 41.6 × 37.9 × 8.2 mmApproximate Case Diameter: 37.90 mmApproximate Case Thickness: 8.20 mm