You can use Siri on an iPhone XR, iPhone XS, or iPhone X in two ways: either with the Side button, or through a "Hey Siri" voice command.
The Action Button is a feature of the iPhone 15 Pro or iPhone 16 and later, appearing on the left-hand edge of the device if ...
Next up is the action button, up on the left-hand side as you look at the iPhone, which has replaced the old ring / silent ...
You can turn off the voice control feature using two different methods, depending on which iPhone model you have. Here's how ...