Email sent from an Apple Watch can use a signature configured through the Watch app on its paired iPhone. The exact wording and location of the option can vary with watchOS and iOS, but changing the watch signature does not require editing every email account separately.
Change the Apple Watch Mail signature
- Open the Watch app on the paired iPhone.
- Select Mail.
- Look for the Signature setting available for the installed watchOS version.
- Edit the signature text.
- Return to the previous screen so the setting can be saved.
- Send a short test email from the watch to confirm the new signature appears.
The watch and iPhone can use different signatures
Changing the signature used for Apple Watch Mail does not necessarily replace the signature configured in the iPhone Mail app or through your email provider’s website. Test a message sent specifically from the watch before assuming every device has changed.
Check the sending account
If you use several email accounts, send the test message from the same account you normally use on Apple Watch. Signature behavior can vary depending on the account and the current Mail configuration.
If the Signature option is missing
Older instructions may not exactly match a newer Watch app. Make sure the iPhone and Apple Watch are using compatible current software, then review the Mail settings in the Watch app. If Apple has moved or changed the feature in your watchOS release, use the controls shown by that version rather than changing the email account itself.
After saving the signature, the most reliable check is an actual message sent from Apple Watch. Open the received message on another device and confirm the signature text and formatting look the way you intended.
Kermit Matthews is a freelance writer based in Philadelphia, Pennsylvania with more than a decade of experience writing technology guides. He has a Bachelor’s and Master’s degree in Computer Science and has spent much of his professional career in IT management.
He specializes in writing content about iPhones, Android devices, Microsoft Office, and many other popular applications and devices.