watchOS 10

Type to speak using Live Voice on Apple Watch

"Real time voice" allows you to type content and turn it into clear voice during face-to-face and telephone calls.

Set real-time voice

Open the Settings app on Apple Watch 。
Go to Accessibility>Live Voice, then turn on Live Voice.
Tap Sound, select a sound, and then tap Read Sample to hear the sound.
To use this sound, tap Download[ Sound name ]", and then tap Use Sound.
To set the accessibility shortcut key for opening Real Time Voice, go to Settings>Accessibility>Accessibility Shortcuts, and then select Real Time Voice.

Type to speak

Press the digital watch crown three times, select "Real time voice" (if multiple accessibility shortcut keys are enabled), and then type the content to be converted into voice or select a common phrase.
Prompt Add the most frequently used phrases for quick access. Go to Settings>Accessibility>Live Voice, then tap Common Phrases.
Tap "Send" to have your phrase read aloud.

If you are on a call, the other party will hear the spoken text in the conversation. Otherwise, the text will be read from the speakers on the Apple Watch.

Use Personal Voice with Live Voice

You can use "personal voice" to create a synthetic voice that sounds like yourself to communicate with relatives and friends. Use Personal Voice to speak by typing during phone calls, assisted communication apps, and face-to-face conversations. Set Personal Voice on iPhone, iPad or Mac After that, you can choose to use the voice on the Apple Watch with "real-time voice". (Available for specific languages.)

To use Personal Sound on the Apple Watch:

Open the Settings app on the Apple Watch.
Go to Accessibility>Live Voice.
Tap "English (America)" and select your "Personal Voice".

[Important matters] When you use Personal Voice to create a voice similar to your own voice on iPhone, iPad or Mac, the voice can only be used for non-commercial personal purposes.

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Apple Watch User Manual

Type to speak using Live Voice on Apple Watch

Set real-time voice

Type to speak

Use Personal Voice with Live Voice