It is almost certain that Apple will give up the Lightning input on its iPhones. Instead, a USB-C input will appear in smartphones, and the changes are to be dictated by, inter alia, new regulations by unifying the standards for phone inputs in the European Union. It turns out, however, that there will probably be differences between the individual models of the iPhone 15 series in the scope of supported information transfer speeds.
Information has appeared in the media indicating that all phones from the iPhone 15 series will receive a USB-C connector, while in the case of Pro and Pro Max models these will be USB-C type 3.2 inputs, and in the case of the other two models (standard 15 and Max) it will be USB-C type 2.0 plug-in. In practice, this will mean that the 15 and 15 Max models will support the transmission of information at similar speeds as the Lightning connector (about 480 MB/s). In the case of the USB 3.2 port, the difference is significant, because it allows you to transfer information even at speeds of up to 40GB/s.