The Xiaomi Smart Band 9 Active can store data independently. Some functions can be used without a mobile phone during daily activities. You only need to turn on the Bluetooth of the mobile phone and bring it close to the band to connect when synchronizing data. It can display 20 exercise records and save vitality scores, heart rate, and blood oxygen health data for the past 7 days. The band can only display data for the day.
The sleep module supports advanced monitoring and breathing score. Due to the large amount of data generated by the monitoring function, it is recommended to connect to the Mi Fitness APP to synchronize data every day and view the complete sleep records. If these two switches are turned off, sleep data is expected to be stored for 7-8 days. If either switch is turned on, sleep data is expected to be stored for 2-3 days.
It is recommended to connect to the Mi Fitness APP every day to synchronize sleep data to avoid device storage limitations causing device sleep data to be overwritten. After a timely connection to the APP for synchronization, you can view the complete sleep data for each day on the APP.
The data synchronized to the APP will be automatically uploaded to the cloud for storage (Mi Fitness APP >> [Profile] >> [App settings] >> [Sync with the cloud] is turned on). If you change to a new phone, you can synchronize the previous data from the cloud to the new phone by binding the previous Xiaomi Account to the band.
Note:
The number of saved records will change with the size of the exercise records. Please refer to the actual situation.