The problem is really not on the homeassistant side. After the following actions on the watch and smartphone, the sensors began to update properly:
- Grant permissions to the Modvoi Health app on your phone to work in the background.
- Enabled all notifications for him. In the future, it will probably be possible to block part of it again if necessary. It is necessary to test
- In the application itself, Modvoi Health clicked on “reconnect”
Perhaps it was enough to fulfill one of the points, I’m not sure.
Surprisingly, I did not change the settings of the watch itself.