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...