Garmin GPSMAP 740 GPS Chartplotter 000/100; Internal/External Antenna Internal; Resolution (VxH) 800x480; Screen Size 7.0/3.6 x 6.0; Screen Type Color; Touchscreen Yes; Waterproof Rating Waterproof; Waypoints/Routes 3; Weather Capable Yes; Basemap Yes Card Format SD Cartography - Preloaded Yes Cartography Brand Garmin Cartography Type NONE