EverythingApplePro on X: "Here we go. Comparing iPhones on original iOS versions. iOS 4 vs 5 vs 6 vs 7 vs 8 vs 9, video coming soon. https://t.co/MoBCbdDjSx" / X
iPhone 4 iOS 5 vs iPhone 4S iOS 6 - YouTube
Apple iPhone 4S Battery: iOS 5 Fix Sent. Did It Work? - ABC News