https://www.vox.com/2016/5/18/11647970/wireless-charging

The newest iPhone — the iPhone 8, announced this week—features wireless charging, meaning you can charge it by laying it on a special pad, without plugging it in.

It will likely serve as an introduction to wireless charging to a mass audience. But it is not going to be a niche feature for long. It has matured, standards are being set, and the technology is on the verge of mass adoption.