This preloaded offshore chartplotter combines the power of networking with brilliant color and slim-line design. The GPSMAP 4208 has preloaded BlueChart g2 maps of the U.S. coast and displays them on an 8.4 inch VGA display with video-quality resolution. By connecting to the Garmin Marine Network you can add sonar radar and weather. For even more enhanced features you can add the optional Bluechart g2 Vision card.