I have a galaxy watch 5 but even 3 days of batteryife is irritating enough I'm looking longingly at the Garmin's. Really don't need a lot of the fluff they come with
I also have a Watchy. The thing is in no way a consumer device but it lasts over a week and the eink display is great. Reminds me of what we lost when pebble went away..
I have the Fenix 7 sapphire solar and it's a perfect trooper. 3 weeks or so in normal mode. And you can use it everywhere. Beach and sea, physical labor, swimming pool, gardening.
On and off.. it's more just a fun thing to program and make better.. the default software is pretty basic.. essentially it's an esp32 with an eink display bolted onto it.
It isn't remotely water resistant - a light rainshower would write it off.
I've got a pinetime coming as well which is much more something that could be used as a daily driver whilst still being hackable.