Here's what it will look like: Spy photo reveals one of the major innovations in the new iPhone 15

A spy photo posted by MacRumors shows USB-C connectors for three models of the iPhone 15 - 15 Plus, 15 Pro Max and the vanilla iPhone 15. This photo confirms Apple's long-awaited transition from their Lightning standard to a more versatile USB Type -C.

One of the key factors that may have pushed Apple to this decision is new European Union legislation requiring mobile device manufacturers to apply a unified charging standard.

The iPhone 15 Pro models are expected to have some data transfer speed advantages over the standard iPhone 15 models, while the base models of the new iPhone lineup will feature USB-C version 2.0, similar to the old Lightning connector.

We also know that Apple will only officially support USB-C accessories that have been certified under the Apple Made for iPhone (MFi) program.

The presentation of the new iPhone 15 line, as well as updated Apple Watch models, is expected to take place on September 13, although there is no official confirmation yet.