if you can only get 1 day worth of life when you've first taken it out of the box, how much life will the watch have a year or two from now?
I recently replaced the original battery in my $25 ca. 2007 Timex Iron Man.
It has alarms, timers, and a more sophisticated stop watch than any phone app I've ever tried. It is waterproof. It keeps perfect time on its always-on display, with battery life measured in years.
It has survived significant (accidental) abuse from smacking into door frames and various other immovable objects, with only minor cosmetic damage and no noticeable loss of performance.
It does not require software updates or cell service. It has had zero compatibility or pairing issues with any phone I've had, from flips to Androids to iPhones, because it does not give a shit about phones; it is a watch. And IMHO, a pretty damn smart one...