Check the Home app
- Open the Home app on your iOS device or Mac.1
- On your iOS device, press and hold HomePod. On Mac, double-click HomePod.
- Tap or click Settings.
- Scroll down to see the serial number.
Check iCloud settings
- On your iOS device, go to Settings > [Your name].2
- Scroll down and tap HomePod to see the serial number.
- To use the Home app on Mac, update your Mac to macOS Mojave.
- Make sure that your iOS device is signed in to iCloud with the Apple ID that you used to set up your HomePod.