As we all know recently, some of Apple's older iPhones have encountered an embarrassing thing - the frequency down gate. The official answer given by Apple is that in order to reduce energy consumption and protect the aging battery, it has limited the performance of some old iPhones and reduced the main frequency of the CPU.

So is Apple protecting the battery, or as people say, "Let the old iPhone hang, and then you will buy a new iPhone"? From my years of iPhone experience, as long as I upgrade the two generation system, it is inevitable that there will be a certain degree of stuck. This routine has also lasted for a long time.

The iPhone 6/6 Plus equipped with A8 SoC has a very bad experience after upgrading to iOS 11, especially for those machines that have never been restored to factory settings after upgrading all the way. It often takes several seconds to open an app. On the latest system, the iPhone 7/7 Plus will not show any stuck phenomenon, and the 6s/6s Plus is not so smooth.

（ IPhone 6 Plus on the left and iPhone 6s on the right ）

OK， Let's talk about frequency reduction. I have iPhone 6 Plus and iPhone 6s in my hand. The two machines have been used intermittently for more than a year. From the score of Geekben 4, the score of 6s is even lower than that of 6 Plus. The former has 1453/2491 points, while the latter has 1550/2693 points.

Maybe Apple really wants to protect the battery and extend the battery life, but for more users, they certainly want a faster response speed, rather than the need to wait to open a WeChat.

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