GPSMAP® 421

GPSMAP® 421

Part Number: 010-00764-00

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Overview

The GPSMAP 421 is a compact chartplotter that features an ultra-bright 4" (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 421 also accepts BlueChart® g2 Vision® cards (sold separately) 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 421 basemap contains worldwide satellite images in place of traditional maps. The GPSMAP 421 also comes standard with a high-sensitivity GPS receiver for superior satellite tracking and quicker acquisition times. In addition, the GPSMAP 421 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.

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.
BlueChart g2 Vision Compatible NMEA 2000 Compatible XM Satellite Weather WAAS enabled

Specs

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)
High-sensitivity receiver Yes
Antenna internal
NMEA input/output NMEA 0183 compatible and NMEA 2000 certified
Power consumption 0.5A at 12V; 0.2A at 24V
0.7A at 12V; 0.3A at 24V (with sonar)

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/favorites/locations 3,000
Routes 100
Track log 10,000 points; 50 saved tracks

Features & Benefits

Garmin radar compatible No
Garmin sonar compatible No
Garmin Marine Network™ compatible No
Touchscreen 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
3-D map view Yes (with optional BlueChart g2 Vision card)
Auto Guidance Yes (with optional BlueChart g2 Vision card)
XM WX Weather & Radio for U.S. & Canada compatible Yes
Automatic routing (turn by turn routing on roads) No
Voice prompts (e.g. "Turn right in 500 ft.") No
Speaks street names (e.g. "Turn right ON ELM STREET in 500 ft.") No
Headphone jack/audio line-out No
Audio/video input/output No
Portable No
Automotive/motorcycle-friendly No

In the Box

  • GPSMAP 421
  • Tilt/swivel mount
  • Protective front cover
  • Power/data cable
  • Documentation

Accessories