This video is again on the iPhone 4S with official iOS 9 installed compared with its predecessor iPhone 4 running iOS 7. Another video was conducted comparing the same devices with the iPhone 4S running not iOS 9 but its Beta 5 version. Let’s see which of these devices is the fastest in performance.

Startup was quite slow as expected in the iPhone 4S with the latest iOS 9 than the iPhone 4 running the older OS, iOS 7. Also in opening the Settings menu, iPhone 4 iOS 7 was visibly quicker. Apps such as the Phone app, calendar, stopwatch also opened faster on the iPhone 4.

After assuring that both the iPhone 4S and iPhone 4 are connected to the same Wi-Fi connection, the app store was opened. Again the win was acquired by the iPhone 4 with iOS 7 over the iPhone 4S with iOS 9 official.

The multitasking screen has different interfaces in the two iOS operating systems and the multitasking screen of iOS7 appeared to be smoother and faster on the iPhone 4 than the iPhone 4S running iOS 9. Something that should be mentioned is, in a previous video we also discovered that the multitasking on iPhone 4S with iOS 9.1 Beta is better than the multitasking in iPhone 4S with Official iOS 9.

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