This chartplotter has preloaded BlueChart® g2 maps of the U.S. coast and displays them on a 10.4" SVGA display with crisp, video-quality resolution. By connecting to the Garmin Marine Network, you can add sonar and weather. For even more enhanced features, you can add the optional BlueChart g2 Vision card. For a low cost option try BlueChart g2 cards.

The 4210 features highly detailed BlueChart g2 marine cartography of the coastal United States, including Alaska, Hawaii and the Bahamas. This data provides detailed coastlines, shaded depth contours, navaids, port plans, wrecks, restricted areas and tide and current information. 

And as an aid to locational awareness, you can overlay the GMR 18 HD radar image on the 4210's map page. You can also split the on-screen display so that you can view the map and the standard radar page simultaneously.

For other areas, the 4210 has a worldwide basemap with high-quality satellite images in place of more traditional maps. With the SD™ card slot, you can add additional maps.

With the optional BlueChart® g2 Vision® SD card, you can add a whole new dimension of exceptional features to your chartplotter.

The GMR 18 HD features high-powered Digital Signal Processing, providing sharper radar imagery and improved target separation. This 18-inch, 4-kilowatt high definition radar has a 36 nm range, bringing radar images into even clearer focus. Combine that with the antenna’s 5.0 degree beamwidth, and you’re looking at the best weather penetration and target definition in its class. To help you avoid traffic on the water, the GMR 18 HD provides MARPA target tracking when combined with the 4210's display and an optional heading sensor. MARPA tracking allows you to track the bearing, course, speed and predicted closest approach of up to 10 targets. In addition, like all Garmin radars, the GMR 18 HD has self-contained signal processing, which provides you with a more precise, easy to read signature.

Specs:

GPSMAP 4210