When you can't (or don't want to) dictate a reply on Apple Watch, use Scribble to write letters with your finger.

How to use it

1. In a Messages or Mail reply, tap the text field
2. Tap Scribble (or swipe up to find it in the input options)
3. Write letters with your finger — the text field converts handwriting on-the-fly
4. Turn the Digital Crown to move the cursor and edit
5. Tap Send when finished

Good to know

• Scribble is available on any Apple Watch running watchOS 7 or later.
• You can write in multiple languages — Apple Watch recognizes the language you're writing in automatically.
• If Scribble doesn't appear, check that it's enabled in the Watch app on your iPhone under General → Scribble.
• Scribble works in any app that accepts text input, not just Messages and Mail.

For more details, see Apple's guide on entering text on Apple Watch.