The international smart website has a description of the smart navigation system as "portable." I interpret that as an available accessory vice anything bult-in. One might be better served by choosing one of the many portable U.S. made and supported Garmins, Magellans, etc., rather than settling for what may be a single Euro choice. Unless you really need a street map of Barcelona.
You have sharp eyes. The case is the same; the screen presentation is the same; the data bar at the bottom of the screen is the same. Only difference is that "Garmin" is replaced with "smart" on the case face. Mystery solved!