For my iwatch to work it say update to iOS 16 and I’m on iOS15. But I’m on iOS 15.7
My phone is trying to update to iOS 16
iPhone 6s, iOS 15
iOS 16.3 is available:
About iOS 16 Updates - Apple Support
for these iPhones:i
OS 16 and iPadOS 16 are compatible with these devices - Apple Support
I am afraid an iPhone 6s (according to your tag) will only update to iOS 15.7. If you have one of the newest watch models that require iOS 16, you will need a newer iPhone model. I am afraid there is now other workaround.
