Why Doesn't My iPhone 7 Plus Update to iOS 16/15/14
iOS 15 Supported Devices - iOS 14 Beta Download
You won't get these iOS 15 features if you have iPhones 7 to 11 - PhoneArena
Reasons You Should Buy an iPhone 7 Instead of the iPhone X
Apple Hub - According to iPhoneSoft, iOS 15 will be compatible with all iOS 14 compatible devices except for the iPhone 6s, iPhone 6s Plus and the 1st gen iPhone SE. #Apple #