How do I get notifications from iMessage on my watch

Check your notification settings in the Watch app on the iPhone. Also, make sure that you have the Watch unlocked. Are you wearing the Watch? Do you have Wrist Detection turned on in Settings>Passcode in the Watch app? Also take a look at this support document about how notifications work with the Apple Watch. Notifications on your Apple Watch - Apple Support

Are you referring to the Messages app to get iMessages? Do you receive them on your iPhone? How do you have Messages configured in the Watch app on your iPhone?

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