I hate to admit it, but most useful to me, other than Control Panel, is Command Prompt (Admin)
I don't own one, so I have no way to test this out but my Surface charges faster when off, and my 1520 charges faster in airplane mode. Your Band might benefit that way too.
"Of course these numbers are based on trading in fully functioning devices, type covers and power supplies."
I got full value (150) without including either cover, just the power supply.
I don't do reddit, someone should ask them Y U No GPS?
"The one exception to in those specs is the inclusion of a GPS sensor – not something you usually get in this type of device and at this price."
And something the Surface team can't get in...