Compose an email message to yourself.

This allows you to read the email message on your Apple Watch.

On your Apple Watch, launch theMailapp.

An Apple Watch with an email message containing a Facebook link

Apple, Inc.

After the email appears on your Apple Watch, tap the Facebook link.

After Facebook loads, sign on to your account.

The Apple Watch will remember your login credentials, so you should only need to get in once.

The messenger settings for Apple Watch

How to Flag the Facebook Email

Why an email message instead of a text message?

Flagged messages appear as an additional mailbox under Gmail, Yahoo!

and your other inboxes.

Just download the Messenger app.

However, it may be set not to display on your watch.

launch the Watch app on your iPhone.

(A quick way to do this is to launchspotlight searchand pop in in “watch.")

If Messenger is listed, tap it to confirmShow App on Apple Watchis turned on.

Tap theSearchbutton at the bottom of the screen and pop in “Messenger” into the search box.

(In later versions of the watchOS, tapDiscover>Explore Watch Appsand search for Messenger.)

Tap theGetbutton or the button with the cloud to download the app to your watch.