It's not just Garmin.

I've had several smartwatches including an Apple Watch, and to my surprise (and I mean that), the one I wear most now is the Amazfit Band 7. It's light, compact, OLED screen, it gets the job done, it was insanely cheap (CA$50) AND the battery lasts a week or more.

I'm not a fitness obsessive, so while it does do some of that, I never use those features - just heart rate and walk distance really.