Which sleep trackers are supported?

Currently, all activity trackers from the manufacturers Fitbit, Garmin, Polar und Withings which are able to record sleep data are supported.
Supported sleep trackers are also listed on the https://somn.io/schlaftracker/ website.

We are working to ensure that other devices will be supported in the future. The approval procedures for such changes, especially for medical products, are very strict here, so this takes some lead time.