On December 20, Apple officially pushed iOS 17 to all iPhones that support iOS 172.1, this version can be seen from the change log, mainly to improve battery life. Because of ios172After this version was upgraded, many iPhone users reported that the battery life has decreased.
So what about the real situation?ios 17.2.1. Has it really improved battery life?On December 27, cattle from overseas released the actual test results. This time, he tested five models: iPhone SE 2020, iPhone XR, iPhone 11, iPhone 12, and iPhone 13.
The process of testing is actually very simple, that is, test them under the same conditions without upgrading to iOS 172.1 with the real battery life after upgrading to this version. Charge all five iPhones to 100% and start testing until they turn off. The results show that the iPhone SE 2020 lasted 3 hours and 20 minutes, the iPhone XR lasted 4 hours and 35 minutes, the iPhone 11 lasted 5 hours and 14 minutes, the iPhone 12 lasted 5 hours and 44 minutes, and the iPhone 13 lasted 6 hours and 58 minutes.
However, when compared to the battery life before the upgrade, the results were unexpected. Because only the iPhone 11 has improved the battery life of the five models participating in the test, the battery life of the remaining four models has decreased to varying degrees. Among them, the largest decline in battery life was the iPhone 13, which decreased by 6 year-on-year3%。
In other words, iOS 172.1 said that it is to improve battery life, it seems that it is only useful for individual models, and most models are still useless. Of course, because he only tested five old iPhones, he did not test the iPhone 14 series and iPhone 15 series, I don't know these two series of iPhone users, do you feel the battery life improved?
In fact, since the iPhone 13 series, the battery life of the last three generations of iPhone mobile phones is relatively no problem, and even in the same level of models, it can be described as a strong battery life. The main reason is that Apple's A-series process is becoming more and more advanced, and Apple also uses a variable refresh rate screen on Pro models, plus the result of soft optimization.