in the settings menu? Assuming you have an Android?

Go to SETTINGS, accessibility, then advanced settings, then highlight the accessibility button.

Afterwards, you'll see a little microphone below the keyboard on the far left. Touch it so it lights up and speak aloud what you want typed. It will type what you say.

It's not perfect, an accent can throw it off a bit until it learns your voice. You may have to clean it up a bit and it isn't great with punctuation.

There are other apps that you can instruct to add punctuation and to separate paragraphs, but can help you when your wrist is tired.