There are two options for navigation: connected to the smartphone or standalone.
Using iOS devices:
For more information on the standalone version on iOS devices, see 'Apple Watch - no smartphone required' below.
If you stay connected to your smartphone, the watch will only reflect the data. If you don't want to hear your device's voice prompt, you can turn it off directly from the watch.
Using Android devices:
In the standalone version you are able to download routes and maps directly to your watch.
When you download a route, the app will automatically save a map as well. If you then use the watch in the standalone version, you can navigate and view both your position and the route on the map.
Alternatively, you can stay connected to the phone, in which case it takes over the navigation, meaning that directions, route information, and your current position will be mirrored on the watch.