Garmin GPSMAP 535 System This freshwater chartplotter boasts the brightest, sharpest, most colorful graphics you've ever seen on a 5-inch screen. The GPSMAP 535 has a 5" VGA display; preloaded, detailed maps of U.S. inland lakes; and simple, straightforward buttons and menus. You can add the optional BlueChart g2 Vision SD card for even more enhanced features. Navigate the Lake The 535 comes preloaded with detailed maps for U.S . inland lakes, including 5300 lakes with shoreline, depth contours, navaids, and more. Over 300 of these lakes are enhanced with extra Inland Lakes Vision features (see below). For areas outside the U.S., the 535 has a worldwide basemap with satellite images in place of more traditional maps. The SD card slot makes it easy to add additional maps without connecting to a computer. And with a simple, intuitive interface and high-speed processor, the 535 makes navigating easy. The 535 boasts advanced Inland Lakes Vision features for 300 of the most popular lakes. 3D mariner's eye view or fish eye view provides you with a 3-dimensional perspective of map information, both above the waterline and below it. Higher-resolution satellite images help you orient yourself in unfamiliar areas. Auto guidance technology searches through map data to suggest the best passage. Add Sonar and Weather The sounder version, GPSMAP 535s, comes with a powerful digital sounder (up to 1 kW) and dual beam transducer that clearly paints depth contours, fish targets and structure. It's also CANet™ compatible, so you can share sounder data with another chartplotter on your boat. For continuosly-updated weather information, you can add the optional GXM 31 antenna to receive XM satellite weather, including NEXRAD radar, and hundreds of XM radio stations right on your chartplotter. Add Extras with BlueChart® g2 Vision With the optional BlueChart g2 Vision SD card, you can add a whole new dimension of exceptional features to your chartplotter for offshore use, including advanced 3D perspective, Auto guidance, high-resolution satellite images, detailed fishing charts and more Physical & Performance: Unit dimensions, WxHxD: 5.9" x 6.4" x 2.9" (15.0 x 16.3 x 7.4 cm) Display size, WxH: 3.0" x 4.0", 5.0 "e; diagonal (7.6 x 10.2 cm, 12.7 cm diagonal) Display resolution, WxH: 480 x 640 pixels Display type: VGA display Weight: less than 1.75 lb (0.8 kg) Battery: none Battery life: none Waterproof: yes (IPX7) Antenna: internal NMEA output: NMEA 0183 RoHS version available: no Maps & Memory: Basemap: yes Preloaded maps: yes Ability to add maps: yes Built-in memory: none (cannot load maps to internal memory) Accepts data cards: SD card slot Waypoints: 1,500 Routes: 20 Track log: 10,000 points; 20 saved tracks Features: Garmin radar compatible: no Garmin sonar compatible: yes CANet™ compatible: yes Garmin Marine Network™ compatible: no Supports AIS (tracks target ships' position): yes Supports DSC (displays position data from DSC capable VHF radio): yes Audible alarms: yes Tide tables: yes Hunt/fish calendar: no Sun and moon information: yes 3D map view: yes (with optional BlueChart g2 Vision card) Auto Guidance: yes (with optional BlueChart g2 Vision card) Automatic routing (turn by turn routing on roads): no XM WX Weather & Radio for U.S. compatible: yes Voice prompts (e.g. "Turn right in 500 ft. "): no Remote control: no Headphone jack/audio line-out: no Audio/video input/output: no Portable: no Automotive/motorcycle-friendly: no