Apple x supports up to 18 watts of fast charge,
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Apple's official website clearly supports the fast charge function, which can be charged up to 50% of the power in 30 minutes.
The PhoneX supports PD fast charge, and the power is around 18W. The iphonex was released on September 13, 2017, Beijing time, and according to the official introduction, it can be charged to 50% power in 30 minutes, requiring the use of 18W or more power adapters.