On an ‌iPhone‌ or ‌iPad‌, Siri can be activated by holding the Home button on compatible models or holding the Side button on devices without a Home button. On iOS 14 and later ...

Siri" route on a vast majority of iPhones, or instead press and hold the side button or the Home button on an iPhone with a Home button. If you're using AirPods, you can press and hold the center ...