I see many people reported this issue...do this...unpair it and then set up as new "don't restore from a backup or sync apps" and see how will it work for a day or two.
If not check them logs from your iPhone -> Settings -> Privacy -> Analytics -> Analytics Data -> and look for "WatchApp Extension." You might then discover any misbehaving and causing the rebooting.
If not check them logs from your iPhone -> Settings -> Privacy -> Analytics -> Analytics Data -> and look for "WatchApp Extension." You might then discover any misbehaving and causing the rebooting.
Thanks and hopefully they come up with a fix. Please keep me posted on your watch.
Last edited: