I leave my apple watch on a charger for at most 15-20 minutes in the morning and that gets it from the 10-20% in the morning to about 80-90% which is enough to go the whole next 24 hours even with a 30 minute lunch walk and 2-3 hours of pickleball fitness tracking as well as having the always on display on.
Never once has this seemed like a problem or that I would want to wear my watch in the shower for some reason. It's shower plus getting dressed and brushing my teeth etc.
Apple Watch has never lasted the full night for me. I'm super happy with my Garmin Instinct 3. A full blown iOS device on my wrist was too stimulating anyways. I'll take charging once every ~25 days-ish over the color + capacitive touch screen.
The Garmin Instinct 3 is my favorite tech purchase I have made in a very very long time.
Yeah, I dunno, I have a S10 42mm. I charge it to 80-90% in the morning while in the bathroom, and it lasts me until the next morning with 10-20% left.
I have always on display on, and all the tracking stuff on like Afib, sleep apnea, wrist temperature, noise levels, fall detection, etc. I typically do a 30 minute walk during lunch that I do a fitness activity for, and a 2 hour pickleball session most days of the week where I also fitness track it. I do not use low power mode, and by the next morning it's got the 10-20% left. It only takes about 15 minutes to charge from 10-20% to 80-90%.
I usually wake up place my watch on the charger grab the clothes I'm wearing go brush my teeth take a shower get dress and get ready for the day then grab the watch off the charger and it fully charged everytime.
I don't get the people that need to wear it 24/7 for days at a time.
Many people with long hair and lengthy (body) skincare routines take showers which take half an hour daily. Probably depends on what you include in the shower time.
I'm perplexed how anyone would have trouble charging their smart watch 30-45 minutes per day, unless they have an unusual schedule like (near-constant travel). This is something I almost never think about or have issues with.
1. If I do end up traveling, I now have to deal with remembering to charge my watch while sleeping on the airplane or something
2. If I go on a camping trip, extra long hike, etc, I can end up with a dead watch (12 hour hike with navigation, early start, so I don't get my morning charge, etc)
With my Garmin, I just charge it once a week or so, and all is good. I do think it comes down to what you're looking for though - mini phone strapped to your risk vs adventure companion.
Meanwhile, I had to wonder how many people take showers that are over half an hour every day.