Custom vibration setting method:
1. After opening Xiaomi Sports, click My Options at the bottom right.
2. After clicking, select the bound mi band 4 device to enter.
3. After entering, click the vibration mode option below.
4. After clicking Enter, select the reminder to customize the entry.
5. After input, click the add option below.
6. After clicking, click the screen to record the vibration mode, and then click Save.
7. After saving, enter the name of the custom vibration mode, and then click Save.
8. After saving, select the added custom vibration mode.