My apple watch series 3 wont restore

Hello Beccabooc,

Welcome to Apple Support Communities!

If we understand your post correctly, you'r Apple Watch won't restore and your phone is not finding an update either. We'd like to help!

For the watch let's follow the steps below:

"Your Apple Watch is backed up automatically to your paired iPhone, and you can restore it from a stored backup. Apple Watch backups are included when you back up your iPhone—either to iCloud, or to your Mac or PC. If your backups are stored in iCloud, you can’t view the information in them.

Back up and restore Apple Watch

• Back up your Apple Watch: When paired with an iPhone, Apple Watch content is backed up continuously to the iPhone. If you unpair the devices, a backup is performed first.
• For more information, see the Apple Support article Back up your Apple Watch.
• Restore your Apple Watch from a backup: If you pair your Apple Watch with the same iPhone again, or get a new Apple Watch, you can choose Restore from Backup and select a stored backup on your iPhone.

An Apple Watch that’s managed for a family member backs up directly to the family member’s iCloud account when the watch is connected to power and a Wi-Fi network. To disable iCloud backups for that watch, open the Settings app on the managed Apple Watch, go to [account name] > iCloud > iCloud Backups, then turn off iCloud Backups."

Restore Apple Watch from a backup

For help updating your phone follow the steps in this article: Update your iPhone or iPad

Let us know if you have any questions.

Thank you for using Apple Support Communities.

Take care!