I was tempted with the smaller of the 2 for the wife's Christmas pressie, but ended up going via EE with their offer and they were only offering the Watch 2 and it wasn't that competitive either
I'm very happy with my Samsung Watch Ultra; paired it with my Pixel Fold yesterday as I've resent the S24U ready to be sold on. Happy to report back that the watch does all I need of it and all the apps I need work without fault 👌🏼
Plus its the right size for my wrists/hands; the Pixel Watches just feel small, but haven't seen the 45mm one in the flesh yet