APPLE INSIDER
Gaming on iPhone and iPad continues to get better. With Apple’s upcoming updates you will be able to pair your Xbox Wireless Controller from the Xbox Series X with iPhone, iPad, Mac, and Apple TV. Here is how.
Xbox Wireless ControllerPairing your controller with a compatible iPhone and iPad is easy to do. To get started, you will need an iPhone or iPad running iOS 14.5 or iPadOS 14.5, as well as an Xbox Wireless Controller for the Xbox Series X.
Source: APPLE INSIDER