iPhone 7 - Wikipedia
iOS 15 - Wikipedia
Apple Inc. - Wikipedia
File:IPhone 7 - A1778 Rose Gold - Back Left.jpg - Wikipedia
File:IPhone 6 and iPhone 7 ports comparison.svg - Wikipedia
iPhone 7 - Technical Specifications
File:New iPhone 7 mockup PSD.jpg - Wikimedia Commons
File:IPhone 7 and iPhone 7 Plus.jpg - Wikipedia
iPhone 7, Apple Wiki
File:Iphone7.jpg - Wikimedia Commons
How to Downgrade iOS: 13 Steps (with Pictures) - wikiHow