I have a 6 with about 85% battery life left. I wear it all day, and leave it in the charger an hour before I go to bed, then wear it at night.
In the 2 years I’ve been doing this I’ve had maybe 3 times where the watch didn’t make it till the end of the day. Most of the times because I had used it for navigation, or some background process had been eating my battery.
I wear an Apple Watch on one wrist and a mechanical watch on the other. In two years I had exactly one person ask about it. Told them ‘one is for fitness tracking, the other because it looks great’. Apparently that was a satisfying answer and the person went on with her day.