The hub of your helm, GPSMAP 741xs delivers media integration and autopilot compatibility, radar support, and NMEA 2000 and wireless connectivityThe Power of Simple is what happens when very complex, sophisticated technology is made extremely easy for you to use. The premier GPSMAP: 741xs brings you that simple operation with 60 percent more processing power than its previous generation for faster zooming and panning. It includes a groundbreaking 7" diagonal WVGA touchscreen with pinch-to-zoom-for a combo that is as intuitive to operate as your smartphone. Built-in high-sensitivity 10Hz Garmin GPS/GLONASS receiver updates position and heading ten times per second to display fluid vessel movement and dramatically improve your ability to mark and navigate to up to 5,000 waypoints.Preloaded LakeVü HD Maps: These highly detailed freshwater maps include 17,000+ U.S. lakes, rivers and reservoirs. Included in those are more than 13,000 HD lakes with 1-foot contours shoreline to shoreline; excellent detail of underwater features plus Shallow Water Shading that allows you to designate a minimum depth; interstates, highways, general roads and bridges; designated fishing areas; and points of interest, such as docks, boat ramps, marinas and campgrounds. GPSMAP:741xs also includes BlueChart coastal charts.See what's below with HD-ID target tracking technologyfor better separation and definition of images for the clearest possible picture of what lies below. You see fish. You catch fish. Easy.Experience the advantage of CHIRP:The sonar technology that you've been waiting for is now built into this combo. CHIRP technology sweeps multiple frequencies to better focus on certain fish at certain depths (CHIRP transducer sold separately).Capture Sonar Recording:Sonar recording coordinates the timing of the sonar return with your boat's position and saves digital information on the map. Key Features Includes both BlueChart g2 coastal and LakeVü HD inland mapping for the U.S.Supported sailing features include laylines, enhanced wind rose, heading and course-over-ground lines, true wind data fields and tide/current/time sliderGarmin Helm allows you to view and control your compatible Garmin chartplotter from an iPhone or iPad or phone, or phone or tablet using