https://www.techradar.com/news/iphone-xi-plus-and-iphone-9-schematics-leaked

It seems impossible to keep a handset as high-profile as the iPhone XI a secret, and today we have another leak, this time in the form of schematics for the largest, most premium of the three rumored handsets, which we’ll call the iPhone XI Plus for now, along with the most affordable option, which we’re currently referring to as the iPhone 9.

The schematics were obtained by Forbes from accessory maker Ghostek, so they’re not necessarily Apple’s own schematics, but there’s a fair chance Ghostek does have access to design information, since it will need that in order to have cases ready for the launch of the iPhone XI range.