The Xiaomi Smart Band 9 Pro supports automatic screen brightness and custom 255-level brightness. You can go to [Settings] >> [Display] >> [Brightness] on the band to enable or disable automatic adjustment of brightness and swipe up or down to manually adjust the brightness, which allows you to make the screen more visible in varying environments.
Note:
1. The brightness is configured as [Auto] by default. The Xiaomi Smart Band 9 Pro supports automatic brightness according to the changes in the surrounding brightness;
2. The Xiaomi Smart Band 9 Pro supports manually adjusting the brightness to the desired brightness (you need to disable [Auto] and the customized brightness will be enabled, otherwise it will be enabled next time).