GARMIN GPSMAP 421s
The GPSMAP 421s is a compact chartplotter that features an ultra-bright 4 in (10.16 cm) QVGA color display along with an improved high-speed digital design for increased map drawing and panning speeds. It’s ready to go with a built-in, satellite-enhanced worldwide basemap and an easy-to-use interface designed to help you navigate the open waters with ease. The GPSMAP 421s also accepts BlueChart® g2 Vision® cards for added features and functionality such as high-resolution satellite imagery, 3-D views and Auto Guidance technology.
View Satellite-enhanced Worldwide Basemap
The GPSMAP 421s basemap contains worldwide satellite images in place of traditional maps. The GPSMAP 421s also comes standard with a high-sensitivity GPS receiver for superior satellite tracking and quicker acquisition times. In addition, the GPSMAP 421s can receive U.S. graphical weather data via optional GXM 51 satellite receiver/antenna. And with an SD™ card slot, it’s easy to add additional maps without connecting to a computer.
Get Sonar
The GPSMAP 421s comes with a powerful dual-frequency transducer that clearly illustrates depth contours, fish targets and structures whether you’re fishing in freshwater or off the coast. The GPSMAP 421s also is NMEA 2000®-certified for easy connectivity with sensors, instruments and future marine offerings.
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.
- MarinerEye view and FishEye view provide you a 3-D perspective of map information, both above and below the waterline.
- 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: |
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Unit dimensions, WxHxD: |
5.7" x 5.0" x 2.7" (14.5 x 12.7 x 6.9 cm) |
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Display size, WxH: |
2.4" x 3.2", 4.0" diagonal (6.1 x 8.1 cm, 10.2 cm diagonal) |
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Display resolution, WxH: |
240 x 320 pixels |
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Display type: |
QVGA display |
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Weight: |
1.3 lb (590 g) |
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Waterproof: |
yes (IPX7) |
Maps & Memory: |
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Basemap: |
yes |
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Preloaded street maps: |
no |
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Ability to add maps: |
yes |
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Accepts data cards: |
SD™ card slot |
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Waypoints/favorites/locations: |
3,000 |
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Routes: |
100 |
Features: |
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CANet® compatible: |
no |
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Supports AIS (tracks target ships' position): |
yes |
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Supports DSC (displays position data from DSC capable VHF radio): |
yes |
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Audible alarms: |
yes |
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Tide tables: |
yes |
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Sun and moon information: |
yes |
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3-D map view: |
yes (with optional BlueChart g2 maps) |
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Dual-frequency sonar capable: |
yes |
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Dual-beam sonar capable : |
yes |
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Split-screen zoom: |
yes |
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Split-screen sonar/gps: |
yes |
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Ultrascroll™ (displays fish targets at higher boat speeds): |
yes |
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See-thru® technology (exposes fish hidden in cover): |
yes |
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Fish Symbol ID (helps identify fish targets): |
yes |
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AutoGain Technology (minimizes clutter, maximizes targets): |
yes |
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Whiteline (indicates hard or soft bottom): |
yes |
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Adjustable depth line (measures depth of underwater objects): |
yes |
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A-scope (real time display of fish passing through transducer beam): |
yes |
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Bottom lock (shows return from the bottom up): |
yes |
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Water temperature log and graph: |
yes |
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Water temperature sensor included: |
yes |
Other: |
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Frequency: |
dual freq: 50/200 kHz |
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Transmit power: |
500 W RMS |
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Voltage range: |
10-32 Vdc |
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Maximum depth: |
1500 ft |
What's in the Box:
- GPSMAP 421s*
- Tilt/swivel mount
- Protective front cover
- Power/data cable
- Documentation
- Transducer