When the foreign YouTube channel iAppleBytes measured the battery life performance of the iOS 16.4 version, all six iPhone models were regressed compared to iOS 16.3, and the newer the iPhone, the more the battery life degraded. It can be said that this makes many users And after Apple launched IOS 16.4.1 a few days ago, you will definitely want to ask, has the battery life been restored to the previous level? The actual test video from iAppleBytes finally appeared earlier. The bad news is that it hasn’t been restored, and it’s still very bad.
Does iOS 16.4.1 improve poor battery life? There is a test video here
Earlier, the foreign YouTube channel iAppleBytes officially released the battery life test video of iOS 16.4.1 The iPhone model and the test method used are exactly the same as before. Adjust the brightness and other settings to the same, and then use the battery mode of Geekbench to test all battery life.
The six iPhone models are iPhone 8, iPhone SE2020, iPhone XR, iPhone 11, iPhone 12, and iPhone 13. The screen brightness is set to 25%, and the automatic brightness function is turned off. All iPhones battery health is above 85%. iPhone 11, iPhone 12 and iPhone 13 can be considered 100%, just like the previous iOS 16.4 test:
The iPhone 8 was the first to run out of battery and it only ran for 2 hours and 4 minutes. Then there’s the iPhone SE2020, which lasts for 3 hours and 20 minutes:
The battery life of the iPhone XR and above is much longer than the previous two models. The iPhone XR came in at 5 hours and 10 minutes, and the iPhone 11 was 5 hours and 29 minutes:
Finally, there’s the iPhone 12 and iPhone 13, which lasted 5 hours and 55 minutes and 7 hours and 54 minutes respectively. It’s a shame they still didn’t join the iPhone 14, so the those who take the latest iPhone 14 series have no real data to refer to, but can still look at the performance of the iPhone 13 to calculate:
The image below shows the iOS 16.4 test results. Although 3 of the 6 iPhone models have slightly longer battery life on iOS 16.4.1, the difference is not huge. There are 2 connections, and the iPhone 12 has gone back a bit, so the overall performance is not quite satisfactory:
iOS 16.3 scores, iPhone 13 can last 9 hours and 1 minute, iPhone 12 also has 7 hours and 11 minutes, and the battery life is more than 1 hour longer than iOS 16.4. It can be seen that the iPhone 14 could also be quite boring, and the effect of the old iPhone is relatively small: 
Therefore, if you have not upgraded to iOS 16.4 and iOS 16.4.1, and you pay attention to battery life, it is recommended to wait and do not rush to update.
Full video:
