Why won't my Apple Watch 8 pair with iPhone 8?
My wife has just bought a watch series 8, chosen because she has iPhone 8 and this page on the Apple Support website says watch series 9 would not be compatible while series 8 is
https://support.apple.com/en-gb/118490
However, the watch insists on iOS 18 and the phone says it cannot pair with the watch.
Any help much appreciated.
[Re-Titled by Moderator]