Garmin GPSMAP 420S 4-Inch Waterproof Marine GPS and Chartplotter
by Garmin

List Price: $642.85
Category: GPS or Navigation System
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Digital product summary information

• With Dual Beam Or Dual Frequency Transducer
• Ultra-Bright 4-Inch Diagonal Qvga Display
• 4000W Max, 500W Rms
• 320 X 240 Pixels
• 800 Nits Of Brightness

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Digital camera reviews of Garmin GPSMAP 420S 4-Inch Waterproof Marine GPS and Chartplotter

Digital camera Review: Boating related
Summary: 5 Stars

Summary of Garmin GPSMAP 420S 4-Inch Waterproof Marine GPS and Chartplotter

The Garmin 420s chartplotter uses a crisp, ultra-bright, full-color 4-inch QVGA display with 320 x 240 pixels of resolution and over 800 nits of brightness that lets you easily distinguish bottom detail and fish from background structure. The 420s lets you view your position with pinpoint accuracy to within less than three meters via its powerful, WAAS-enabled GPS antenna, and comes with a built-in, satellite-enhanced worldwide basemap. What's more, compatibility with the optional BlueChart g2 Vision card allows you to further enhance this unit's mapping capabilities with features such as high-resolution aerial reference photos for help navigating tricky harbors and channels, or locating spots like area marinas or fuel stops. The g2 Vision card also lets the 420s provide graphical depictions in a true 3D mariner's-eye topside view, or fish-eye underwater perspective.

The Garmin 420s features intuitive navigation with fewer buttons to push and operational steps to traverse, and a simplified menu format that makes it easier for you to see and select the data you want to access on-screen, as well as a tilt and swivel mount bracket that lets you set it for optimum positioning. The 420s also features a backlit keypad for easier operation at night, and a new night mode function that provides optimum readability in low-light conditions. The 420s can also provide auto guidance via the optional g2 Vision card, which searches all your chart features in order to suggest the best known charted route for navigation, so you always have a knowledgeable guide to local hazards and waterways on deck with you.

The 420s is designed to be easily adaptable to various conditions with a choice of dual-beam or dual-frequency sonar to clearly portray depth contours, fish targets, structure and more. This unit comes with dual-frequency, 50 kHz to 200 kHz transom-mount transducer with a narrow beam that pierces the depths for maximum saltwater performance. Made to be upgradeable and expandable, the Garmin 420s includes built-in CANet connectivity that enables its sonar data to be shared with other chartplotter displays on your boat. This unit weighs 1.5 pounds, and measures just 5.7 x 5 x 2.7 inches (W x H x D) allowing it to be placed virtually anywhere.

What's in the Box
Garmin 420s chartplotter, dual-frequency transducer, tilt/swivel mount bracket, power and data cables, protective cover and owner's manual.

Marine GPS Chart Plotters

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