Analysis of information sources in references of the Wikipedia article "WatchOS" in English language version.
Your Apple Watch is designed to "mirror" the language used on your iPhone, so by default it'll use whichever language is set on that device, but you can make the two devices differ.
Your Apple Watch is designed to "mirror" the language used on your iPhone, so by default it'll use whichever language is set on that device, but you can make the two devices differ.