Sleep Cycle does not support all Android watches. Our integration requires Wear OS 2 and works with any modern Wear OS watch from many developers.
(check here for reference - https://wearos.google.com/#find-your-watch).
Android watches track things differently from the Apple Watch. The Android one works more as a remote, which is used to start the tracking on the phone. It doesn’t track your actual sleep on its own, and it doesn't automatically track it. The Android watch doesn’t record sounds since it’s mainly a remote that starts tracking your sleep from your phone.