While-Apple talked a lot about iOS 9’s security and privacy features during its keynote address on Monday, it also reminded developers that iOS is far better than Google’s Android when it comes to one critical aspect: Device upgradeability. To further drive that point home, Apple made sure that iOS 9 will be able to run on all the devices that currently support iOS 8. DON’T MISS: The 5 best new features in iOS 9 That means that iPhones as old as the iPhone 4S and iPads as old as the iPad 2-will be able to run iOS 9.-iOS 9 should not only be faster and more responsive than iOS 8, but also take up a lot less storage space, meaning

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