K18S Smart Wirstband K18S IP67 Heart Rate Monitor Activity Fitness Tracker Smartband for IOS Xiaomi Android Normally you don't need to

Normally you don't need to calibrate it because it was calibrated before delivery

Standard QWERTY keyboard layout

1 x Polishing Head

1080P LED HD Mini Projector

Our car GPS locator can remember driving locus for 60 days

K18S Smart Wirstband K18S IP67 Heart Rate Monitor Activity Fitness Tracker Smartband for IOS Xiaomi Android Normally you don't need toProduct Features: Notes: Be compatible for Android phone(OS must be android 4. 3 or above and bluetooth must be BT4. 0 or above ), and iOS phone(iOS must be iOS 7. 0 and bluetooth must be BT4. 0 or above) Life Waterproof: not for shower or swimming. Main Features: 1. Pedometer his smart heart rate bracelet record steps, calories, mileage. And it can also sync the sports data to your smartphone when app is connected.(APP: Mistep) 2. Heart Rate Monitor