(August 24, 2018)
Apple does not make an iPhone with internal wireless charging support. Scotty of Strange Parts found a guy in China who developed a kit to add wireless charging capability inside an iPhone 7. It is a slim circuit including Wireless Charging antenna and a connector which slips into an iPhone 7 connector. It requires replacing the back, so there is a port-hole through which wireless charging signals can get into the phone.
The video attached here is a fascinating look at not only getting into an iPhone 7 and making modifications, but the hardware development environment in the Chinese electronics markets. We get to see Scotty taking apart and reassembling an iPhone 7 several times, testing and debugging, and finally getting the thing to work. Plus, we get to see Scotty negotiating with Chinese hardware developers.
The big result is that Scotty is making available kits at http://strangeparts.com/wireless