Apple Watches are great for people who want their watch to be an extension of their phone. Full stop.
Garmin watches are great for people who prioritize active lifestyles over social contact but still like to have the ability to receive notifications on their wrist. Do note, though, that Garmin's Vivo line has become "smarter" in the current gen, but I don't see them ever tackling Apple Watches directly with Forerunner, Fenix, etc models.
It's more like "Apple Watches are great for people who want their watch to be an extension of their iPhone. Full stop."
Apple Watch is not smartphone agnostic (requiring iPhone for Apple Watch setup). That's Apple's choice. Apple Watch has done well targeting just iPhone users. It makes some stuff easier for devs.
Garmin watches are great for people who prioritize active lifestyles over social contact but still like to have the ability to receive notifications on their wrist. Do note, though, that Garmin's Vivo line has become "smarter" in the current gen, but I don't see them ever tackling Apple Watches directly with Forerunner, Fenix, etc models.