Tried a couple of things that didn't work. What did work for me was:
Hold down the button for ~60 seconds to shut it off
Try to turn it on by pressing the button, it only vibrates
After sitting for several minutes press the button again
A message pops up saying low battery
Dismiss the message
A message pops up about connecting to the phone
Connect it and it's fixed (everything deleted though)
Hold down the button for ~60 seconds to shut it off
Try to turn it on by pressing the button, it only vibrates
After sitting for several minutes press the button again
A message pops up saying low battery
Dismiss the message
A message pops up about connecting to the phone
Connect it and it's fixed (everything deleted though)