Nope, I charged it when it arrived so started at 100% about 10:30 this morning, and it's currently 8:46 PM and 49%
That's encouraging.
I assume heavy use, being you just got it and have "played" with it a ton?
I just charged my watch from 21-100% in about an hour and a half. Now what? I don't want to wear it to sleep so I'm just going to leave it laying on my nightstand all night? Or plugged in all night even though it's at 100%?