Mi Band 3 (Black) by Mi

Use Mi-Fit App to connect the phone; During actual use, factors such as settings, operations, and the usage environment will have an impact on the battery life. These factors may cause results obtained during actual use to differ from lab data
Up to 20 days of battery life (If Automatic Heart Rate feature is turned on then expected battery life will be 3-9 days)
0.78” OLED touch screen. The adjustable strap length is 155 - 216mm
Call and Notification Alert: Read messages and receive call notification and alerts from applications such as Uber, WhatsApp etc
Continuous Heart rate monitoring, sleep analysis and advanced step tracking
Find my phone feature: Ring your phone, if it is misplaced
5ATM - Water resistant upto 50 metres
Phone Unlock feature (Android Only)
Get Idle Alert and Weather Forecast; View data by simply raising your wrist
Devices with Android 4.4, iOS 7.0 or above with Bluetooth 4.0 and above.

Product Description