Apple has now released their new iOS 12.1 software and now we have some speed test videos of iOS 12.1 vs iOS 12.0.1.
In the videos below we get to see the new iOS 12.1 vs iOS 12.0.1 software run side by side on a number of devices. This includes the iPhone 5S, iPhone 6, iPhone 6S and iPhone 7, first ip is the iPhone 5S.
As we can see from the video the device running the previous iOS 12.01 booted up a slit second faster than the handset with the new software, there do not appear to be any speed differences between the two in the apps, next up is the iPhone 6.
In the video with the iPhone 6, the handset running the new iOS 12.1 booted up slightly faster than the handset with the previous release. There do not appear to be any speed improvements between the two in the apps, next is the iPhone 6S.
As we can see from the video of the two iPhone 6S handsets, the device running the older iOS 12.0.1 booted up slightly faster, the two devices seem about the same in the apps, finally we have the iPhone 7.
In the video with the iPhone 7 the handset running the older iOS 12.0.1 booted up slightly faster, there do not appear to be any speed improvements in the Apps. From the videos we can see that there are no major speed improvements for older devices in the latest version of iOS.