The first to use the USB-C interface on mobile phones is the LeTV mobile phone that is almost hidden in the rivers and lakes.

Apple is also not willing to be conservative, and has done more aggressively. Starting with the 2015 MacBook, Apple implemented a comprehensive USB-C strategy, leaving only USB-C and 3.5mm audio interfaces on almost all Macs. After that, it's iPad Pro and iPad Air.

However, until Apple found that the Mac only relying on the USB-C interface would not work, and brought the traditional interface back, the iPhone was still an unstoppable Lightning interface. why? Maybe only Apple knows.