Use a braille display with VoiceOver on Apple Watch
Apple Watch (with watchOS 7.2 or later) supports many international braille tables and refreshable braille displays. You can connect a Bluetooth wireless braille display to read VoiceOver output, including contracted and uncontracted braille. When you edit text, the braille display shows the text in context, and your edits are automatically converted between braille and printed text. You can also use a braille display with input keys to control your Apple Watch when VoiceOver is turned on.
For a list of supported braille displays, see this Apple Support article: Braille displays supported by Apple Watch.
Connect a braille display
Turn on the braille display.
On Apple Watch, go to Settings > Accessibility > VoiceOver > Braille, then choose the display.
To see the braille commands for controlling Apple Watch, tap More Info, then tap Braille Commands.
See the Apple Support article Common braille commands for VoiceOver on your Apple Watch.
Change the braille display settings
On Apple Watch, go to Settings > Accessibility > VoiceOver > Braille.
Set any of the following:
Set the braille display output to uncontracted six-dot, uncontracted eight-dot, or contracted braille.
Choose the input method for entering braille on the display—uncontracted six-dot, uncontracted eight-dot, or contracted braille. You can also turn on Automatic Translation.
Wrap words to the next line.
Alert Display Duration
Adjust the duration that an alert is visible on your braille display.
Add tables to the Braille Table rotor.