The new GPSMAP 535 and 535s feature high resolution, super-bright, videoquality 5" VGA displays, with worldwide satellite imagery enhancing the Vector chart graphics. The 535-series comes preloaded with coast-to-coast cartography for inland U.S. waters, of which over 5000 of these lakes and navigable waters include invaluable details such as extra resolution, depth contours, boat ramps, mile markers, hazards, marinas, campgrounds, area roads, and more. (Contiguous 48 states only) The built-in sounder on the 535s combo model can scan as deep as 900 feet (with included dual beam transducer) to clearly paint depth contours, fish targets, structure, etc. The combo 535s also offers split-screen capability, so you can view map and sounder data simultaneously. See realtime weather displayed on the 535-series' high-resolution, sunlight readable display with the purchase of the GXM 31 antenna (sold separately) and subscription to XM WX Satellite Weather. View vital weather data such as NEXRAD radar, storm cells, wind speeds, surface temperatures, forecasts and more than a dozen other weather attributes directly on the unit's chart - so you can spend more time enjoying the water and less time worrying about the weather