If you want to swap to Garmin for your gym workouts but are intimidated by the high prices, the $50-off Vivoactive 6 is your best starting point.
https://www.androidcentral.com/wearables/garmin/garmins-best-beginner-watch-for-everyday-people-just-returned-to-its-all-time-low-days-before-black-friday?rand=7