To change the language used on your watch, change the language used by your phone while your watch is connected with your phone.

If the watch doesn't support your phone’s language, it uses English.

Some voice actions are not available in all languages and countries, but you can use a different language for voice actions than the language used on your watch.

Voice actions work best if your language is set to English, French, German, Italian, Japanese, Korean, Russian, Spanish, or Brazilian Portuguese.

To set the language for voice actions:

1. On your phone, touch > Google Settings.
2. Touch Search & Now > Voice > Languages.
3. Select the language to use for voice actions.