JLEKONG Fitness Tracker - Activity Tracker Watch with Heart Rate Monitor, Smart Bracelet IP68 Waterproof Bluetooth Pedometer for Android and iOS, Step Counter Sleep Monitor Calorie Counter

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About JLEKONG Fitness Tracker - Activity Tracker Watch

Working mode:Once/30minutes for heart rate test automatically (Also can test manually, which is real time testing)Once/10minutes for HRV, 0:00-7:00 is real time testingOnce/10minutes for Blood oxygen testingReal time testing for sleep monitoringMain Features:Blood oxygen: Sleep Apnoea Syndrome, Blood oxygen concentration.Heart rate test: HRV graphic analysis, rate of respiration, ECG display, heart load, HRV and etc.Support: Heart rate alarm/Sleep monitoring/pedometer/sports track/Count Down/Sedentary remind and etc.Message alarm: Seperated switch. (Support wechat, Skype, Facebook, Twitter, Snapcha, SMS, etc.PP interface: Chinese, Traditional Chinese, English, Japanese, Korea, German, Russian, Spain, Italy, French, Vietnam, Portuguese.Bracelet Interface: Support multi languages (Including Latin, Cyrillic, Chinese, Japanese, Korea and so on, over 150 kinds of languages).Phone version: iOS8.0 and aboved. Android 4.4 and aboved Main Specification:Chipset: NORDIC 52832Display: OLED 0.96inch, 128*64Bluetooth: BT4.0Touch way: Single PointBattery: 3.7V/180mAh; Standby: 30 days Working: 7-10 daysCharging way: USB In-line ChargingFatigue: APP testSleep monitoring: Test automatically according to the amount of exercise, pulse rate.