Specification:
Name: Smart Bracelet
Model: M4
Material: ABS(Acrylonitrile Butadiene Styrene)+PC(polycarbonate) for case, Eco-friendly TPU(thermoplastic urethanes) for wrist strap, 201 stainless steel for button
Battery Capacity: 80mah
Waterproof: IP7
Color: black, red, dark blue, light blue
Size: length:235mm/9.25inch width:22mm/0.87inch thickness:13.5mm/0.53inch
Compatible System: bluetooth4.0, for Android4.3 & IOS8.0 or above.
Display Screen: 0.96 inch HD IPS color screen FTF process

Feature:
-USB in-line convenient charging, no charging cable, direct USB charging.
-Built-in 80mAh battery, charging time about 2 Hours, normal use time about 7 days, standby time about 15 days.
-Push support (Caller, SMS Messenger, app news reminders: QQ/Facebook/Twitter/Wechat, etc.)
-Support heart rate / blood pressure / blood oxygen monitoring (This function is for reference only and can not be used for medical data.)
-Pedometer (Exercise step, calorie consumption, movement mileage record.)
-Support multi sports modes ( Running / Riding / Climbing / Swimming / Pingpong / Walking, etc.)

Charging Method:
USB Charger: You need to remove the main body from the bracelet first, As long as you have a USB interface, you can charge it at will