Recommended update to all owners of iPhone 4S.
Even before the presentation of iOS 9 Apple representatives promised a significant increase in performance in the new system on older devices. The long-awaited
optimization began to emerge only in the latest update.
iOS 9.2.1, which became available for download a few days ago, has worked well in the iPhone 4S and iPhone 5. Observers from iAppleBytes compared the speed of the latest 3.5-inch iPhone on iOS 8.4.1 and the latest version of the firmware.
iOS 9.2.1 after a long load showed the best results. Upgraded pleased accelerated animations and improve application startup. Most programs are significantly ahead of the application on iOS 8.4.1 for download speeds.
The work of the new version of the mobile operating system on the iPhone 5 compared to the previous version of "Nine." In the video, there is a slight difference in the speed of the animation in the rest of the speed of the device is on the same level.
Newer devices have not received significant improvements over the previous version of the system.
https://www.iphones.ru/iNotes/527081
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