Quote Originally Posted by smokefree View Post
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You say you can't test it. In fact you can. Put the microSD in your nüvi 1490 and scroll the map to Costa Rica. Zoom in at any location (for instance San Jose) and you'll see the map shows more and more details as you zoom in further.

Some units are even capable of simulating a route. Off the top of my head, I'm not sure if that also applies to the nüvi 1490. No time now to check, but you can find out yourself by checking the instruction manual. If capable, you could simulate a route somewhere within Costa Rica and that way prove for yourself the map on your microSD works.
On any 1xxx, from 'Where To?/View Map' main screen: Press Tools>Settings>System>GPS Simulator>set to 'Off'>OK. Then you can set your current location from the 'Where To?' icon [you have a 'Set Location' button now when you select a destination to make it your start point] and then you can select your final destination to navigate a simulated route. All nuvi series and most other routable Garmins are capable of route simulation but the method of setting the GPS Simulator varies.