Fitbit has expanded access to its Spotify app to the first-generation Versa and Versa Lite. The Ionic fitness watch is also included in this update. It enables these wearables to manage playback and podcasts on the music streaming platform, and to control other devices that can use the same.
https://www.notebookcheck.net/Fitbit-updates-older-Versa-devices-with-support-for-Spotify.439549.0.html