It is evident that Apple developers are working.
The fourth beta version of iOS 12.1, which may be one of the last test builds of the firmware, users. The update further increases the speed, particularly on older iPhone and iPad models. But in terms of battery life iOS 12.1 beta 4 no significant changes compared to iOS 12.
The speed was higher
Comparison iOS 12.1 beta 4 and iOS 12.0.1 on various models of iPhone and iPad show that Apple has managed to better optimize the operating system. On the old iPhone, particularly the iPhone 5s and iPhone 6, recorded a noticeable increase in speed.
On newer Apple mobile devices the difference between iOS 12.1 beta 4 and iOS 12.0.1 is almost imperceptible. Both firmware work very quickly, without any bad slow downs.
The battery life does not change
Unfortunately, the fourth beta version of iOS 12.1 did not bring the desired increase battery life. This indicator iOS 12.1 no different from previous test builds.
Thus, for many iPhone and iPad users while working with their devices without recharging will remain unsatisfactory and iOS 12.1 beta 4. It is on the autonomy of iOS 12 the largest number of complaints, but Apple do not intend to deal with the problem.
Recall that there are simple but effective ways to increase the battery life of the iPhone and iPad on iOS 12. More about them we are told in this instruction.