Watch powered itself off, wont turn on when connected to power source. No it's not a low battery problem. Reset not working either. Had the same issue with Fenix 3. I am now on my 3rd watch of the fenix 5x for same issue. So happy REI has their incredible return policy otherwise I would be more pissed about the amount of money I have wasted on this watch.
Edit: Randomly after 30 minutes the watch powered on while not connected to charger.