On iPhone or iPad, open Settings
Tap Siri & Search
Turn on Listen for “Hey Siri” or Listen for “Siri”
Turn on Press Side Button for Siri or Press Home for Siri
Follow the on-screen setup steps
On Mac, open System Settings
Click Siri & Spotlight or Siri
Turn on Ask Siri
On Apple Watch, open Settings
Tap Siri
Turn on Ask Siri
On AirPods or supported accessories, enable Siri in the device settings
Make sure your device language and region support Siri
Make sure your device is connected to the internet
Check that Siri is available in your country or region