watchOS comes with a variety of built-in responses for responding to Messages. However, you can create your own custom responses, if you wish. Here’s how:
° Open the Apple Watch app on the iPhone to which your Apple Watch is paired.
° Scroll down and tap Messages.
° Tap Default replies to see the built-in replies.
° Tap an existing reply to change it, or tap Add reply to create a new one.
Moving and deleting replies
If you don’t like the order of your replies, you can move ‘em.
° Open the Apple Watch app on the iPhone to which your Apple Watch is paired.
° Scroll down and tap Messages.
° Tap the three horizontal lines, and drag your responses into the order you prefer.
If you want to delete a specific reply, tap the subtraction sign in a red circle next to it, then tap Delete.
