Smart Watch Men Women Bluetooth Blood Pressure Heart Rate Monitor Sport Smartwatch Fitness Tracker For Xiaomi Huawei IOSProduct InstructionModel Number: D20 Pro Smart WatchAPP: FitProBluetooth Version: Bluetooth 4.0Waterproof / Water-Resistant: Yes(Not for swimming )Operating mode: Touch buttonPower on: press and hold the function keyScreen Type: 1.4 inch TFT LCDStorage(FLASH)16MB+128KBCompatible OS: Android, IOSStandby time: 4-7days normally use; 30 days standbybased on 230mAhFunctions: Sport,Message,Alarm Clock,Blood Oxygen,Date,Measurement of heart rate,Sedentary reminder,Sleep management,TimeNotification type: Facebook,Twitter,Wechat,WhatsAppAlert type: VibrationFeatures1. IP67 Waterproof: It supports hand washing, rain, swim wear, meet daily needs (note: cannot wear for hot water bath and sauna)2. Health monitoring:heart rate monitoring, sleep monitoring, sedentary reminder3. Standard sports function and other functions: Step, calorie, distance calculation. Alarm clock, stopwatch, raise your hand to brighten the screen, remote camera, find the bracelet.4. Display: 3 kinds of UI interface style (main interface long press switch), time display, date display. Multiple sports modes.5. Call reminder and information push: connect to "Fitpro" APP, to display calls, text messages and SNS (Twitter, Line, WhatsApp, Facebook, Line, KaKaoTalk, WeChat, QQ) and other notifications; never miss important information.