iOS 9: Performance and battery life on all iPhone models

Last updated Jun 23, 2017 709

iOS 9 adds a number of new while maintaining the now typical GUI minimalist. But what will be its impact on performance and battery life? He answers the question a test conducted by ArsTechnica.

iOS 9 is finally among us. After a long gestation period and a public beta and private begun for months now, Apple has released the new and latest iteration of its mobile operating system. There are sensational news in terms of functionality, but that the Cupertino company has been more than a job to finish and, above all, the optimization software side. There is a clear difference of ” weight ” of the installation files with download via OTA only slightly exceeding the gigabytes of memory.

The days are short in which to install a new major release of the Apple user had to liberate, with operations not always very comfortable, even up to 4 GB of storage space and a half. To install the new release will take up 1.5 GB free, with an obvious work of streamlining done concerning mainly the stages of installation. Apple also promised massive optimization for older devices than iOS 8, which was there but not on the scale announced.

Performance of iOS 9 with iPhone 4S - Source: ArsTechnica — **Performance of iOS 9 with iPhone 4S** – *Source: ArsTechnica*

A very interesting article from ArsTechnica shows what are the differences in performance between the two versions on the various devices of Apple compatible, and what the impact of iOS 9. In tests made by the US website, we discover that there is a widespread improvement in terms the operational independence (especially on the iPhone 6 Plus), but also that changes in performance are not so egregious than previous versions.

It is advisable to install on older devices, and specifically on the iPhone 4S? ArsTechnica concludes: ” For users of iPhone 4S our advice is the same that we had taken for iPad 2: if you use iOS 8 can upgrade “. The performances are similar. However, the new software side is also significant, such as ” the new keyboard software, native applications to date, and more. ” A little different argument made for users who are currently using iOS 7 on iPhone 4S.

In this case, the update is indeed advisable, but only on condition that accept small performance degradation. The benefits of a newer version of the operating system are much more important, as well as in terms of security, also on the compatibility with third-party applications. iOS 7 will be increasingly supported by the developers of the platform, with IOS 9 which will become with time as the reference point of the entire ecosystem and, probably, the last operating system compatible with the iPhone 4S.

For further reading, you can find the full article on this page. Downloading iOS 9 will be made automatically on the device via OTA, and can be forced through the Settings. As usual, you can also install it by restoring or updating the device by connecting it to a PC through iTunes.