Yea, I had a series 3, hated it coming from a galaxy watch. Daily charging, dies on 24h shifts tons of useless features that I never use, looks weird for a watch, no always on display (granted not a problem for newer ones I gather). And the goddamn screen got scratched so fast, even more so when I started bouldering.
I was a actually kinda glad I busted the screen and could justify getting a Garmin Instinct 2 Solar. I was a bit apprehensive about how it would play with an Iphone, but it is pretty damn good.
Best watch I have owned, even the galaxy watch pales in comparison. I can actually track sleep because the battery lasts 2 weeks with nightly pulseox (should be 3 without), potentially a lot longer but the sun is a foreign concept this time of year. It gives me what I need and nothing more (although it is a bit off the mark on a few things. The fitness tracking is great, it is actually a lot better for bouldering. No annoying touch stuff, actual physical buttons, that while take a bit of adjusting to, are perfectly adequate for reaching all the functions quickly. Seems sturdy as hell too.
The only feature I miss a little is answering calls on it. Was useful 3 times a year or so when I used it while I was busy but could have a conversation on loudspeaker. Besides this I cant get it to track additional sleep episodes properly (say on my 24h shifts when I get multiple short bursts of sleep or just general naps). The sleep tracking is semi auto - you set a sleep time, the watch only tracks sleep in sleep mode. Theres no automatic workout tracking (I guess there is a weird half tracking thing), although I hated auto tracking on the galaxy watch, I was fine with apple but never used it. Now granted all of the above is a mild annoyance at best, for me.