The release of watchOS 5.1 caused some Apple Watches to get stuck in the boot cycle with the Apple logo displaying on the screen.
Apple has been unable to provide users with a way to fix the issue at this stage and is asking users that have been affected to either send in or bring in their Apple Watch.
They seem to have not yet found a repair solution themselves and are advising some users that they may need to replace the watch completely.
How do I contact Apple Support to get my Apple Watch fixed?
You can visit them at getsupport.apple.com or call 1300 321 456.