iPhone 5S, 6 Years Later Speed Test! Planned Obsolescence Real? iOS 7 vs 8 vs 9 vs 10 vs 11 Comparison on iPhone 5S. Same Test on iPhone 5: • iOS 10 vs iOS 9 vs iOS 8 vs iOS 7 vs ... Same Test on iPhone 4S: • iOS 5 vs iOS 6 vs iOS 7 vs iOS 8 vs i...