How to synchronize data? What should I do if the connection fails?

1) When the mobile phone Bluetooth is turned on and the Zepp app is opened, the data will be automatically synchronized. Alternatively, you can drop down on the main interface of the Zepp app to manually synchronize the data.
2) If the connection fails, you may try the following methods: First, drop down on the main interface of the Zepp app to manually synchronize the data. If that doesn't work, force close Zepp app and then re-open it.

Note: When the watch is recording workouts or playing music, the app will not be able to synchronize data on the watch.