M2 (Version2) Sport Waterproof Heart Rate MonitorSmart Bracelet M2 Wrist Band Smart Watch OLED Fitness Tracker Pedometer For IOS Andriod Phones (Blue) CHEMAI

Features:  0.42"" OLED display screen; Incoming messages, calls, and note prompt: iOS and Android, English and Chinese; Heart rate monitor: real time monitoring, monitor time period setting; Time display, pedometer, real time heart rate, distance shown; Standard sports functions: pedometer, distance counting, calorie consumption; Sleep tracking: sleeping time and quality; Time display, pedometer, distance shown on the screen; Turn-wrist to screen bright; locating and finding watch; Anti-lost reminder: When your phone is out of your monitoring range, it will remind you;   Specifications: System Required: Android 4.4 or above, iOS 8.0 or above, Bluetooth 4.0 Bluetooth Version: 4.2 waterproof: IP67 Grade Chip: ST17S25  Sensor: Gravity sensor, and Reflecting photoelectric heart rate sensor Display Screen: 0.42"" OLED Battery Capacity: 70mAh Standby Hours: 15 days Working Hours: 5 days Operating Way: Capacitive Touch Screen Warning Way: Built-in high sensitivity motor APP/APK Downloading Way: Android and iOS (English Name: Yoho Sports) You can search and find it in Apple APP Store or in Android App stores) Net Weight: About 19g

Gross Weight: About 64g

a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a