If you enable “Listen for ‘Hey Siri’,” you are prompted to set up “Hey Siri” so the voice assistant recognizes your voice and doesn’t activate for anyone else. Once you are done setting up “Hey Siri,” you can change the language (which doesn’t change Siri’s language, but what she’s listening for instead). You can also enable Siri to work if your phone is locked as well as set other options. If you opt to press the button for Siri, you’ll get similar options, like allowing Siri to work even if the phone is locked. When you’re pressing and holding the power button for Siri, hold the button down while you ask a question or give the voice assistant a command. You can release the Side/Power button when you’re done speaking.
If you enable “Listen for ‘Hey Siri’,” you are prompted to set up “Hey Siri” so the voice assistant recognizes your voice and doesn’t activate for anyone else. Once you are done setting up “Hey Siri,” you can change the language (which doesn’t change Siri’s language, but what she’s listening for instead). You can also enable Siri to work if your phone is locked as well as set other options. If you opt to press the button for Siri, you’ll get similar options, like allowing Siri to work even if the phone is locked. When you’re pressing and holding the power button for Siri, hold the button down while you ask a question or give the voice assistant a command. You can release the Side/Power button when you’re done speaking.
You can do this for a few different Apple services, like Apple Music, Apple Podcasts, Maps, and Photo Library.