The iPhone 4S is the latest device developed by founder Apple Steve Jobs. Despite the fact that the age of the model is approaching 7 years, it is still afloat and remains one of the most popular smartphones. This fact is connected with the fact that the device is insanely beautiful in appearance, it is equipped with an excellent camera even by today's standards and good hardware that allows you to easily perform the necessary daily tasks. The first 4S were driven by iOS 5 versions.
4S under control iOS 5
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Operating system updates for the device have been released for five years.
The last version that iPhone 4S runs on is iOS 9.3.5.
True, the phone worked best with the old firmware, for example, iOS 6 and iOS 7. The new operating system does not allow you to get a 4S processor, which has 32 bits. Starting with iOS 10, 64-bit devices are required.
4S to iOS 9.3.5