Hi all please try my post on here: https://discussions.apple.com/thread/7011211
This worked for me, for some it hasn't worked, but its worth a try.
1. Turn off the watch (hold side button (while not on charge) and then swipe to power off like iPhone)
Then Reset the watch
1. Hold the Digital crown and the side button and the same time until you see the apple logo
Put on charger and see if it charges.
If this does not work do the following:
1. reboot iPhone
2. go to apple watch app
3. in the apple watch app got to > general > reset > erase all content and settings
4. wait for watch to erase and reboot to language screen
5. Set up the watch until you see the app bubbles
(a difference i noted at the point of first installation was, that the linking with my iPhone didn't work with the camera, i had to do it manually with bluetooth codes, not sure if this was the problem to begin with, however now with erasing and starting fresh, the linking has worked properly with the camera)
If you end up with any pairing problems you will need to:
1. Settings > General > Reset settings for iPhone
2. Erase content and settings from settings on the watch
3. Then you will be able to pair again
(for some reason even if you unpair with the phone through the watch app, the bluetooth settings get saved somewhere, but it doesn't show up on your bluetooth device list. so only a reset of the settings get rid of these)