Why is there no sleep breathing rate data in the Mi Fitness APP after enabling it?

If there is no sleep breathing rate data in the Mi Fitness APP after enabling it, please refer to the following troubleshooting steps:
1. First, make sure that the sleep breathing rate is enabled in the Mi Fitness APP. You can enable it through the following steps: Go to [Device] >> [Sleep] >> [Breathing rate], then turn it on;
2. If the sleep duration is too short, the effective monitoring time can be insufficient, and the sleep breathing rate data will not be displayed. A night sleep time longer than 3 hours is required for this data to appear;
3. If the device is not worn correctly, it will prevent accurate monitoring of the sleep breathing rate. Ensure the device is not too loose, and that it is worn approximately one finger-width above the wrist bone;
4. If neither of the above issues apply, check if the APP and firmware versions are up to date. It is recommended to restart the wearable device or unbind and rebind it to the APP for troubleshooting.
Note:
Devices that support sleep breathing rate monitoring will show the [Breathing rate] switch in the Mi Fitness APP’s sleep settings.