The Garmin GPSMAP 78 brought a major update to the GPSMAP 76 handheld line. Garmin had a huge hit with the 60/76 series, and instead of messing with a winner, they turned their attention to new interfaces, which were introduced on the Colorado series, followed by the touch screen Oregon line. These new units brought the ability to add custom maps and aerial imagery, paperless geocaching, and high-resolution screens, but the latter made them less than bright (although later models like the Oregon 450 have largely solved this problem).

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