Waterproof Bluetooth Smart Wristband Heart Rate Monitor Fitness Tracker Wristband for Android and IOS Smart Phone , Silicone wristband, Calorie and Step Counter, Call Notification for Android iOS.(m)

Features and Functions:
1、Record Steps； Mileage record ； Calorie Consumption； Clock ；Sedentary remind and etc.
2、High precision of the sensor.
3、The large capacity, Long life.
4、Low power consumption of OLED screen.
1, Sleep monitoring precautions
If you want to monitor your heart rate accurately,please wear the wrisband at 21:00 PM to 7:00 AM.
2, The precautions of the APP match:
● You need to press the wrisband for more than 10 seconds to show the matching 4-bit character
● When login in, be aware of the differences between "0" and "D", "S" and "5"; "8" and "B"
3, Charging problems
When the wrisband power is with the less electricity, it is normal that the charging screen is flashing ,you can wait it for 10 minutes and it will regain normal.
4, The precautions of sync the data
● Make sure your phone is near to you.
● And the wrisband is not connected to another phone.
5, If your wrisband can't be used and app connection after a period of time
May be due to your phone Bluetooth hardware , please restart the phone, open the app again ,and you can in a normal use.
6, APP can not display the latest datat, and sync the old data
May be due to the Bluetooth data cache, resulting in the data is not normal, please end the app running, and re-open the app.