Which is better, ios 12.3 or 12.4? What is the difference?

Ios 12.4 is good. Ios 12.4 has new features that 12.3 does not have.

According to the update, iOS 12.4 adds "iPhone migration function", which can directly migrate data from the old iPhone to the new iPhone, while improving the security of iPhone and iPad.

Undoubtedly, the iPhone migration function is the core upgrade point of this official version of iOS 12.4. To this end, Apple official website also gave a detailed tutorial on this new function. Although the tutorial looks cumbersome, in fact, the operation process has maintained the consistent ease of use of Apple iPhone.

In short, you only need to prepare an iPhone running iOS 12.4 or higher in advance, and put a brand-new iPhone next to the old iPhone after booting, and the "Quick Start" option will automatically appear on the screen of the old iPhone. At this point, everyone just needs to complete the data transmission according to the system prompt.

In the new official version of iOS 12.4, in addition to the migration function, this update also includes some other functions, such as supporting Apple's Apple Card credit card, solving some access and download problems of Apple News+ (American version), increasing support for HomePod (Japanese version), and repairing and restarting the functions of Apple Watch walkie-talkie.