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iOS 16.7.8 was released May 13, 2024.
This video was shot more than 7 daysafter iOS 16.7.8 was installed, so it had some time to settle in. I have seen many comments that it takes about a week for battery performance to optimize itself after an iOS update. I have always been skeptical of this statement as I have never personally had bad battery life right after I update. If I restore and download backup from iCloud well then that is another story. n that period they were left without power and then powered back to 100% to be ready for the test to run.
Before the test was run the devices were set to 25% display brightness, auto brightness has been disabled, all devices use same settings, and are connected to the same access point.
How Geekbench works :
Geekbench 4 battery scores measure the battery life of a device when running processor-intensive applications. It provides…