Mi band often vibrates for no reason. Why?

Mi belt may vibrate under the following conditions.

1, meter band standard reminder;

When the standard is reached, the three LED lights of the mi band 1 generation light up, and the standard icon will be displayed on the Xiaomi bracelet 2.

2, mi band alarm clock reminder and snooze reminder;

After the alarm clock is turned on, the bracelet will continue to vibrate every 10 minute, and there is no need to press and close the alarm clock.

3. Call, SMS, WeChat and other reminders.

Mi band 1 will light up and vibrate when reminding, and Xiaomi bracelet 2 will display the corresponding reminder icon.