Hey,
Bit of a scratch-my-own-itch project: I wanted my Suunto data in Home Assistant so I made one that just logs into the Suunto app's backend (Sports Tracker) with your email + password and pulls everything from there.
It gives you one Suunto device with sleep, recovery, daily activity, your workouts, lifetime totals, and a bunch of computed training-load stuff (CTL/ATL/TSB, ACWR, a readiness score). There's also a workouts calendar and long-term statistics that backfill retroactively so if your watch syncs to the app hours late, the missed HR/sleep still shows up at the right time on the graph instead of being lost. That part I'm kinda happy with.
Repo: GitHub - MichalZaniewicz/ha-suunto: Unofficial Suunto watch integration for Home Assistant - sleep, recovery, workouts and training-load sensors · GitHub
Wiki: Home · MichalZaniewicz/ha-suunto Wiki · GitHub