Vivo X90 Pro's wireless backcharging function supports all devices compatible with the Qi wireless charging standard, including but not limited to iPhone 8 and above models, Samsung Galaxy S10 and above models, Google Pixel 3 and above models. As long as the device supports wireless charging and conforms to the Qi standard, wireless backcharging can be carried out by Vivo X90 Pro. This makes it easy for users to provide charging for other devices without using a charging cable or charger.