What Apple Watches are compatible with the iPhone 7S?
The last update my iPhone 7S got was iOS 15.8.3. (“iOS is up to date”)
iPhone 7 Plus, iOS 15
that means you can only guarantee a series 3 or older will pair, and i would not touch a watch that old, almost obsolete. Most used and all new watches will be on OS 11 by now. Spend the money on an iphone 13 or newer.
