https://techcrunch.com/2017/11/14/ios-112-is-going-to-support-faster-75w-qi-wireless-charging/

The iPhone 8, iPhone 8 Plus and iPhone X all support wireless charging using the Qi standard. It means that iPhones are now compatible with hundreds of chargers out there. But iPhone Qi charging is currently limited to 5W, or the slowest wireless charging speed. Apple is currently working on iOS 11.2 — this update is going to support 7.5W charging, as MacRumors spotted.

Wireless charging is nice if you don’t want to plug your phone every time you want to charge it. But it’s not a groundbreaking feature as you still have to plug your charger to the wall. You also need to put your phone on the charger. So it’s not really wireless.