A88+ bluetooth 4.0 Smart Watch Heart Rate Monitor Blood Oxygen Monitor For iOS iPhone Android

Features Heart rate monitor Equipped with Power Pulse technology it can real time track your dynamic heart rate frequency of human body movement for viewing Blood oxygen track Built in dynamic monitoring it can record your dynamic curve in order to build a healthy body Sleep monitor Automatic track your sleeping time and analysis sleep quality by a chart and you can even set an alarm clock to wake you up by vibration to avoid disturbing family Short charging time and long standby time Just need 2 hours charging time and get 30 days standby time but it just can be used for 5 7 days under using case Virbration reminder WeChat SMS just support iOS system calls alarm etc Life water resistant Just suitable for washing hands or face not for swimming or showering Specifications Screen size0 66 inch OLED screen with 64 x 48 resolution ratioChipTAIWAN Nordic 51822 chipbluetooth versionbluetooth 4 0Health trackerHeart rate monitor Pedometer Sleep monitorNotificationYesNotification typeWechatAnti lostYesAlert typeVibrationOther functionAlarmScreenOLEDScreen resolution64 x 48Operating modeTouch ScreenType of batteryLi polymer BatteryBattery Capacty100mAhCharging timeAbout 2 hoursShape of the dialRectangleCase materialABSBand materialSiliconeCompatible OSAndroid iOSCompatabilityAndroid 4 4 iOS 8 0 and above systemLanguageEnglish Simplified ChineseDial size4 x 3 x 1 cm 1 57 x 1 18 x 0 39 inchesBand size26 x 1 9 cm 10 24 x 0 75 inchesProduct s