The body of the iPhone EXs is equipped with a 2658mAh battery, the original standard charger power in the box of the machine is 5W, compared with the power of Android at all times more than 18W, charging will be slow. However, the iPhone exs itself supports fast charging, if you want to experience fast charging, then you must buy a separate fast charging head and fast charging cable.
Apple xs charger is 5v1a 5w charger, you can buy 18w fast charge.