Why is there exercise data lost in the pebble mode when using the Xiaomi Smart Band 9?

If you encounter missing exercise data in the pebble mode, you can ensure the Mi Fitness APP is added to the background protection list. Additionally, ensure the APP has necessary permissions enabled to allow the band functions to work correctly. Open the [Mi Fitness] APP >> [Device] >> [Background permissions] to set the permissions. Check whether the permissions of [Turn off Battery saver], [Select No restrictions in Background settings], [Allow app autostart] and [Lock the app in background] are all enabled.