If you need more memory for waypoints and maps, this color-screen Garmin eTrex Legend Cx with included blank 64MB microSD card is an ideal upgrade from the Garmin eTrex and eTrex Legend. Why do you need memory? If you live in the States but you find yourself vacationing in Europe or Australia, the eTrex Legend Cx GPS has the added memory space potential for uploading extra basemaps and expanding your mapping and tracking potential. You can also remove the 64MB microSD card and replace it with a larger 256MB microSD card (sold separately) without being forced to go out and buy a separate GPS system. Garmin designed the eTrex Legend Cx with a 256-color screen that's bright enough to read in sunlight so you can catch all the details on where you're going and how you'll get there. The automatic route generation feature also gives you turn-by-turn directions in case you're having a tough time finding your way from the airport to your hotel. One of the best improvements is the battery life--32 hours from two AA batteries is ideal for weeklong trips and extended remote road trips.