Pairing Apple watch
iOS 15 is not available for my iphone12 so I’m getting a message that I can’t pair my new watch (7) until I get version 15. Now what?
Question marked as
You might want to browse this. Apple Support article.
iOS 15 and iPadOS 15 are compatible with these devices
(You'll see a list of iPhone 12's ... is yours not listed ?)
https://support.apple.com/en-us/HT212712
If you have backed up your iPhone,
and have enough space for the update:
How to:
Update your iPhone, iPad, or iPod touch
https://support.apple.com/en-us/HT204204
And
Set up and pair your Apple Watch with iPhone
https://support.apple.com/en-au/guide/watch/apdde4d6f98e/watchos
Hope this helps you :-)