The question should rather be, which specific language would you like to have? There is a wide choice...
Loading maps on it is no problem - I loaded Australia/New Zealand from Garmin (https://buy.garmin.com/de-CH...) for a trip of several months. But they are quite expensive.

Just as good and free are the Openstreetmaps http://garmin.openstreetmap.nl/ - here you can choose exactly which areas you want to load (e.g. I loaded Hawaii) and then install the maps on your device. I use them for hiking (Generic Routable new style) and for biking (Routable Bicycle Openfietsmap Lite).

Follow Trailgierig's instructions for installation: https://trailgierig.com/2017...

all common European languages, German, Italian, French, Spanish, Portuguese, Dutch, Russian, Polish, Slovenian etc.
I have not yet tried to load maps