This preloaded, offshore chart plotter combines the power of networking with brilliant color and slim-line design. The Garmin® GPSMAP® 4212 has preloaded BlueChart® g2 maps of the U.S. coast and displays them on a whopping 12.1-in XGA display with crisp, video-quality resolution. By connecting to the Garmin® Marine Network™, you can add sonar, radar and weather. Add the optional Bluechart g2 Vision card for enhanced features