iOS 9 on the iPhone 6 Plus, iPhone, iPhone 5S/5C/5, iPhone 4S is presented in a rather interesting comparison which aims to show us how well this version of the operating system works on the various Apple products.
In the video clip below you can see a start-up test for all 6 iPhone terminals, it being completed by a test of opening some applications or accessing some of the new functions prepared by the Apple company.
Probably no one will be surprised to learn that iPhone 6 Plus and iPhone 6 have the best performance on iOS 9, while the iPhone 4S has the worst performance, because the internal hardware of the terminals differs so much, 4 years separating them.
Apple thought iOS 9 to offer good performance even on the old iPhone 4S, or on the old iPad 2 tablet, but in reality things are not quite as good as we would like, at least in this first beta version of the system operation.
Considering that iOS 9 has three months of development and improvement ahead of it, by the fall I expect Apple to solve the main problems that affect the correct operation of its terminals, but we have to be patient until then.
