Cheap waterproof fitness tracker, Buy Quality fitness tracker directly from China xiaomi mi band 2 Suppliers: Original Xiaomi Mi Band 2 LED Touchpad Screen Bracelet Heart Rate Monitor Pedometer Wristband IP67 Waterproof Fitness Tracker
Maybe you also linke thses strap Mi BAND 1S ( Heart Rate ) Water Tester Pen Metal Strap Leather Strap Original band2 charger Original band2 charger Original band2 charger Specifications: Battery Battery Capacity 70mAh Standby Time 20 days Battery type Lithium polymer Weight 70g Material Plastic, aluminum alloy Waterproof Rate IP67 Internal Configuration 0.42 inch OLED ScreenDialog 2 generation Bluetooth chip (Bluetooth 4 BLE)ADI ultra low power acceleration sensor