Samsung has released a new update to the Galaxy Watch4 and Galaxy Watch4 Classic, still the only smartwatches with Wear OS 3. This month's update arrives as R8xxXXU1FVC8 and contains a few minor changes.
https://www.notebookcheck.net/Samsung-Galaxy-Watch4-and-Galaxy-Watch4-Classic-gain-Samsung-Health-improvements-with-their-latest-updates.612626.0.html