Hey guys, this issue had been driving me crazy for months on my Apple Watch Series 3 and I tried all of the other solutions on these pages, but they didn't work. Finally, I found out that all I had to do was go to Settings > Bluetooth and then forget my Apple Watch connection(Do this by tapping on the "i" symbol). My IPhone then created a new connection with my Apple Watch and then it started updating. I really hope this solves your Apple Watch update issue!
GodzillaTech5
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution