Apple have an accessory which can connect the apple watch to a computer so that it can be restored via itunes. Alas it's not for sale to the public yet. But mfc made a similar device called the ibus which does the same thing. Unfortunately the ibus is only available for the series 1 so far: https://www.mfcbox.com/shop/ibus-data-cable-for-iwatch-s1/ I'm not going to buy it because I only have the original apple watch and it won't work with that. It won't work with a series 2 either. Anyway here is a youtube video on how to use the ibus with a series 1 apple watch: (note it doesn't allow embedding so you have to click "Watch this video on YouTube") EDIT: It is now also available for the series 0 and 2 - see next post for details.