iAppleBytes on YouTube installed the latest beta on iPhone 4s, iPhone 5, iPhone 5s, iPhone 6, and iPhone 6s, then placed them alongside the same devices running iOS 9.3.1. All of the handsets were restored before the test using the same backup.
The difference aren’t quite so noticeable on newer devices. In the iPhone 6s test below, iOS 9.3.1 performs just as well as the newer firmware, so users who have newer iPhones probably won’t notice a change.
And now iPhone 5.
Your thoughts ?