Write and reply to mail on Apple Watch
Create a message on Apple Watch
Open the Mail app on your Apple Watch.
Firmly press the display, then tap New Message.
Tap Add Contact to add a recipient, tap Add Subject to create a subject line, then tap Create Message to compose your mail.
Reply to a message on Apple Watch
Scroll to the bottom of a message you’ve received in the Mail app , then tap Reply.
Compose a message on Apple Watch
There are many ways to compose a message:
Send a smart reply: Scroll to see a list of handy phrases that you can use—just tap one to send it.
To add your own phrase, open the Apple Watch app on your iPhone, tap My Watch, go to Mail > Default Replies, then tap Add Reply. To customize the default replies, tap Edit, then drag to reorder them or tap to delete one.
If the smart replies aren’t in the language you want to use, press the display, then tap Choose Language. The available languages are those you enabled on your iPhone in Settings > General > Keyboard > Keyboards.
Dictate text: Tap , say what you want to say, then tap Done. You can speak punctuation, too—for example, “did it arrive question mark.”
If you use more than one language and your dictation isn’t transcribed in the right language for a conversation, you can still send it as an audio clip. Or, change the dictation language: Press the display, then tap Choose Language.
Create an audio clip: Open the Apple Watch app on your iPhone, tap My Watch, go to Messages > Dictated Messages, then tap Transcript, Audio, or Transcript or Audio. If you tap Audio, the recipient gets your dictated text as an audio clip to listen to, not a text message to read. If you tap Transcript or Audio, you can choose the format of your message when you send it.
Scribble a message: Tap , then write your message. As you write, turn the Digital Crown to see predictive text options, then tap one to choose it. Tap Send to send the message.
Note: Scribble is not available in all languages.
Include emoji: Tap , tap a category, then scroll to browse available images. When you find the right symbol, tap it to add it to your message, then tap Send.
Reply from iPhone
If you prefer to type a reply, wake your iPhone, then double-click the Home button to show the App Switcher. (On iPhone X and later, swipe up from the bottom edge and pause to show the App Switcher.)
Tap the button that appears at the bottom of the screen to open the email in Mail.