Feature
1.Health monitor smart wristband, support heart rate monitoring, blood pressure monitoring, blood oxygen monitoring and sleep monitoring
2.Automatically and accurately track your all-day activity. Pedometer, calorie, support multi sports modes
3.Calls and messages reminder, notification push for smartphone APP
4.Support multi languages including English, Chinese, Spanish, Japanese, French, Russian and more
5.Other functions: Alarm clock, anti-lost, remote control and more
Specifications
Product Name:Smart Wristband
Color:As shown in the pictures
Screen:1.3inch TFT Colorful Display Screen
Resolution:240*240
Bluetooth:V4.0
Battery Capacity:90mAh
Style:Sports
Compatible System:For IOS and Android
Package Included
Smart Wristband
User Manual

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loved it
I have ordered two pieces. The first one does not work properly. This one works well. Of course, do not expect the correct measurement of blood pressure. The display is quite dim, but for 5$ it is a good starting point.