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.
'What is Announce Calls on iPhone?': How to enable Siri to announce who's calling you on your iPhone
The Announce Calls feature on iPhone was introduced with iOS 10, and when enabled Siri will "speak" the name of the contact calling you.
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How to get Siri's new look in iOS 18.3
The familiar orb at the bottom of your screen is now a thing of the past. Update your iPhone to get a glowing, colorful border when you summon Siri.
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