iOs

iOS 11.2.1 Battery Life Test : Has it improved vs iOS 11.2?

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So iOS 11.2.1 is out, and many wonder… Will it ruin my already great battery life, or will it improve my battery life which is horrible on iOS 11.2.

In this test I try to figure that out by comparing iOS 11.2 vs iOS 11.2.1 in battery life using the battery life test of Geekbench 4.

First I run the test on iOS 11.2, then upgrade to iOS 11.2.1 and run the full test once more, and then we compare the scores.

The battery wear of the iPhones are measured in the beginning of the video and checked again before running again on the upgraded version.

The iPhone 6S are on TMSC chipset.

Hope you enjoy the video.

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35 Comments

  1. Hey do one of these videos on the 11.2.5 beta. I know its a lot of work, but these provide great perspectives on the battery life of these devices. Thanks for making these videos man. Appreciate the effort

  2. Ios 11.2.1 is by far the best ios 11 release. My iphone se gets 6h of screen on time whyle on the previous versions it lasted 3,5h

  3. here is what i did to get battery life back on my 5s (3.5 yr old) running 11.2.1: charged it with a 5 Volt 2 Amp charger a few times and the battery is much improved now (wear level dropped from ~36% to ~17%, 1300 mAh capacity vs 1560 mAh for a new one) !! very close to 10.2 levels of performance & battery life ! i'm quite hopeful that 11.3.x will cure all aches !

  4. How is an OS going to improve battery life running a stress test…Firstly nobody is going to run a benchmark nonstop, secondly the main drain is from cpu at 100% load which is hardware related, unless peformance is throttled at a different temp threshold. Pointless test, any difference here is just margin of error or could be explained by slightly different ambient temperatures. The only worthwhile battery test is mixed usage real world test which can show how well the software adjusts cpu clocks for several different types of tasks.