7-inch touchscreen chart-plotter / sonar combo with GMR 18HD+ has enhanced map drawing that is easy to use in any environment and can be easily integrated into Garmin marine system, advanced navigation ultimate integration, easy integration of icon easily, 3rd-party icon connect to your favourite third-party devices, build icon easily to build your marine system using the best of network connectivity, maps icon compatible with premium maps and charts for the best in Garmin navigation, lay-lines icon take the guesswork out of sailing with clear lay-lines and more, right on the screen icons to manage your marine experience from nearly anywhere, built in Wi-Fi for accessing to the free all-in-one ActiveCaptain™ app, built-in sonar capabilities, heading and position refreshed 10 times per second, built-in SailAssist features, and GPX waypoints transfer.