Garmin GPSMAP 640 Marine Navigator

With the Garmin GPSMAP 640, you'll get a full-featured marine chartplotter and an on-the-road navigator that comes ready to go with preloaded BlueChart g2 data and City Navigator NT road maps for North America. The GPSMAP 640 comes standard with a high-sensitivity GPS receiver and brilliant, high-resolution touchscreen display so you'll always know the way whether you're on land or at sea.