Apple released their iOS 12.1.2 software just before the holidays and now we have battery life test video to see if there are any improvements.
In the video below we get to see the previous iOS 12.1.1 run on a number of devices with some battery tests and then iOS 12.1.2, will there be any improvement in battery life.
As we can see from the video there appears to be slightly less battery life on some devices like the iPhone 5S and iPhone 6, whilst other devices like the iPhone 7 are the same.
There are no major battery life differences between the new iOS 12.1.2 software and the older iOS 12.1.1 software. Apple did rush out this update to fix some major bugs, so there could be some improvements in the next release.