The Galaxy Watch4 and Watch 5 series’ OS supports Google apps like Google Fit trackers, along with other services to help you get the most out of your watch.
Google's Wear OS update makes apps easier to find and download
No way to accept service terms - Wear OS by Google Community
Wear OS buyer's guide: What you need to know - Android Authority
Samsung Galaxy Watch users can now easily find games on the Play Store - Sammy Fans
How to update an app on Wear OS
Android Apps by OQ Watchfaces on Google Play
Samsung Galaxy Watch 4 Classic: A Game-Changing Wear OS Review — Eightify
Google Play Store app updated with Wear OS 3.0 UI for some users - PhoneArena
Android Developers Blog: Updating Wear OS Google Play Store policy to increase app quality
Galaxy Watches get a new Google Maps Wear OS update - SamMobile
Galaxy Watch 4 - Wear OS App Review
Best Applications For Your Samsung Watch
5 things to try with Wear OS on the Samsung Galaxy Watch4
How to Install Any Apps on SAMSUNG Galaxy Watch 4! [Easily]