18 w
Apple xr supports 18w fast charge. iPhone XR is a mobile phone product released by Apple on September 13, 2018, with a built-in 2942mAh battery, which supports 18w wired fast charge and Qi wireless charging, and can be charged via USB connection to a computer or power adapter.
The iPhone EXR supports 18 watts of fast charging, which can be fully charged in half an hour