Brand Name: TONQUU
Model Number: Smart bracelet
Item type: Smart Sport Wristband
Material: Silicone
Function: Waterproof
Color:: black, blue, red
Screen size:: about 0.96 inch
Battery capacity:: built-in 90 mAh battery
Bluetooth:: 4.0
Waterproof level:: IP67
Theoretical standby time:: 10 days
Theoretical working time:: about a week
Physical button:: one touch button
Charging interface:: usb charging
Sensor:: gravity sensor
Compatible system:: for android 4.4 or for IOS 8.0 and above