Re: "You have to tap or flick your wrist."
>> An expensive and clunky-looking watch that can’t tell you the time*
*Footnote
You have to tap or flick your wrist. Still.<<
So, your footnote contradicts your earlier sentence - it does tell the time, and it tells the time in whatever format you want. And if it didn't dim the watch you would be complaining that battery life was not very long. But it is good that mostly watch is not showing until you make a motion to look at it. It's called contextual computing.