The GPSMAP 420 is a sleek, space-saving chartplotter that features an ultra-bright 4" QVGA display; built-in, satellite-enhanced worldwide basemap and simplified user operation. The 420 also has an SD card slot so you can add additional features with the optional BlueChart ® g2 Vision card. View Satellite-enhanced Maps The 420's basemap contains worldwide satellite images in place of more traditional maps, and its SD card slot makes it easy to add additional maps without connecting to a computer. With fewer keys and a simple, intuitive interface, the 420 makes navigating your way through the water easy. 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. 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. High-resolution satellite images and aerial photographs help you orient yourself in unfamiliar areas. Auto Guidance technology searches through all relevant charts to create a route you can actually follow - one that avoids obstacles, shallow water, buoys and other obstructions. Physical & Performance: Unit dimensions, WxHxD: 5.7" x 5.0" x 2.7" (14.5 x 12.7 x 6.9 cm) Display size, WxH: 2.4" x 3.2", 4.0 " diagonal (6.1 x 8.1 cm, 10.2 cm diagonal) Display resolution, WxH: 240 x 320 pixels Display type: QVGA display Weight: 1.3 lb (590 g) Battery: none Battery life: none Waterproof: yes (IPX7) Antenna: internal NMEA output: NMEA 0183 RoHS version available: no Maps & Memory: Basemap: yes Preloaded maps: no 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: no 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 Additional Details SKU : GAR0100051520
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