Check the Home app
- On your iOS device, open the Home app.*
- In the Home tab, press and hold HomePod, then tap Details.
- Scroll down to see the serial number.
Check iCloud settings
- On your iOS device, go to Settings > [Your name].*
- Scroll down and tap HomePod to see the serial number.
*Make sure that your iOS device is signed in with the Apple ID that you used to set up your HomePod.