Veryy nice.
The 90 degree number rotation is indeed interesting. I would get used to it over time if it were there a lot. But… Initially?
Still very clean, simple and readable design gets my vote on that aspect.
I would ditch the lightning bolt as icons have not been neccessary for any other metric and it keeps it pure. The % symbol makes it obvious what you are measuring.
Nice. Since we are talking Symitry. How about 64 PWR to balance TUE 22. Just saying… Do AMISH-FIT do an App for the Phone. 
Nice Clean Hands.
My biggest “fear” if you will, is someone mistaking the battery level for the chance of rain that Galaxy watch faces have. Of course, if they are that dumb, they would probably think the lightning bolt means a chance of thunderstorms… But on the other hand, Bill Envall has made a good living talking about stupid people needing a warning sign for others to be alerted to their stupidity. 
I don’t know about that. We have a lot of Amish here in this area, the next chance I get I’ll ask one.
Why do Dumb People get themselves a Smart Watch ?? 
As a gift from their smart friends hoping the smartness with rub off on them while wearing it, maybe.