On December 12, iOS 172 The official version is here as promised.
Apple on iOS 17The 2 release brings a host of new features, including the Notes app, the ability to modify the default sound, a new weather widget, and more. It also improves telephoto performance for iPhone 15 Pro series models and supports spatial** shooting.
Overall, iOS 172 The update in terms of functionality is still quite satisfactory. 
In addition to the update of new features, every time the iOS version is updated, everyone is usually very concerned about the battery life of the new system. In this regard, I believe you should be familiar with our old friend @iapplebytes, who usually brings us the endurance test of the new version of the system as soon as possible. Right on iOS 172 A few days after the official version was released, a new endurance test was also delivered. Without further ado, let's take a look. The test process was the same as usual, and the test was officially started @iapplebytes a period of time after the system was upgraded.
The main purpose of this is to circumvent the low-level optimizations that can be made during system upgrades, which may have an impact on the test results. 
YouTube tested a total of 5 models, namely the iPhone SE 2, XR, and 13.
iApplebytes uniformly adjusted the brightness to 25% after disabling the auto-brightness feature on all iPhones. Finally, connect to the same WiFi, use the Geekbench 4 to test the overall battery life, and compare them side-by-side. The final endurance test results are as follows:
According to the battery life test results, after upgrading iOS 172 After the official version, the battery life of the above models has not shown much fluctuation. Among them, the battery life of iPhone 12 and iPhone 11 has been improved to a certain extent after updating the system.
For iPhone 13, iPhone XR, and iPhone SE 2 models, upgrade to iOS 172 The battery life has decreased slightly after the official version.
As is customary, @iapplebytes also publishes the autonomy scores of each model in operation with previous systems. The higher the score, the better the battery life. 
As you can see, Apple has set iOS 17 for iOS compared to the initial version of iOS 172 More experience optimizations have been made, and battery life is more stable. At least similar to iOS 17 before1.2 The iPhone 11 battery life has fallen off a cliff**, which should not happen again in subsequent versions of iOS 17. Therefore, it is important to upgrade iOS 172 Friends who are still on the sidelines in the official version can rest assured. For older models that can't upgrade to iOS 17, it's recommended to upgrade to iOS 16 as well7.3 Official version for a safer and more stable user experience. 
Tubing in short, iOS 17The overall autonomy of the 2 is decent and friendly to older models. Of course, the endurance test results are for reference only, and the specific endurance performance should also refer to everyone's usage Xi. That's all about iOS 172 The main content of the endurance test of the official version. You upgrade iOS 172 Is there an official version of the system, and how is the experience?Welcome to leave a message in the comment area and discuss with you. If you want to know more about the knowledge and skills of using Apple devices and inquire about the warranty, welcome to pay attention to the Fruit Fan Club.