iPhone X wireless charging.
There are several officially supported Qi fast wireless chargers for the iPhones from Mophie and Belkin, but the Apple trio should be able to reach its new maximum 7.5W charging speed with any wireless charger that has the output.
MacRumors was able to confirm via representatives for RAVpower that 7.5W charging speeds will be unlocked via iOS 11.2, which is now undergoing developer/public beta testing. Still, wireless charging is markedly slower than direct charging via USB cable, and even with that boost to 7.5 watts, the iPhone 8 and iPhone X will charge more slowly using wireless charging pads compared to the Samsung Galaxy S8, which supports 9-watt quick-charging with the proper charging pad (though it's still considerably slower than wired charging).
The tech giant is set to release its own wireless charger in 2018, although iPhone owners can use third party products now to juice up their handsets. The same phone took more than 30 minutes to get from 40 percent to 60 percent while charging wirelessly on a Qi pad.
The Qi 1.2 standard is capable of up to 15W so iOS is only tapping 50 percent of the potential of the technology.
iOS 11.2 is in public beta right now, and usually a full release isn't far behind.