Starting with iOS 11.2, the iPhone 8, iPhone 8 Plus, and iPhone X are able to charge at 7.5 watts using compatible Qi-based wireless charging accessories.
With support for 7.5W charging speeds, the iPhone 8, 8 Plus, and iPhone X will be able to charge more quickly over a wireless connection, and it appears 7.5W wireless charging speeds are faster than the speeds you get with the standard wired 5W power adapter.
At 7.5 watts, Apple's wireless iPhones do not support the same wireless charging speeds that are available on some other Qi-based smartphones, as the current Qi 1.2 standard allows for up to 15W of wireless charging power. Still, 7.5 watts is better than 5 watts and should offer some noticeable improvements for iPhone 8, 8 Plus, and X owners.
Jim
2017-11-15
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