Charging compatibility
Does the iPhone 8 lightning charger work with iPhone X?
iPhone 7, iOS 12
Question marked as
Apple power sources are compatible with any Apple iOS device. The charger is actually in the device, and it "knows" what voltage and current it needs. Your iPhone X will charge fastest with an Apple USB-C 19 watt or larger adapter, but it will charge with any Apple power source or any good quality 3rd party USB or USB-C power source.