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Product Discontinued by Manufacturer

Garmin Compact Chartplotter GPSMAP 421/421s w/ 4-inch QVGA Color Display has been discontinued by Garmin and is no longer available. Our product experts have helped us select these available replacements below. You can also explore other items in the Fishfinders, Fishing Gear categories yourself to try and find the perfect replacement for you!

Garmin Compact Chartplotter GPSMAP 421/421s w/ 4-inch QVGA Color Display Product Info

The Garmin GPSMAP 421 is a compact chartplotter that features an ultra-bright 4" QVGA color display along with an improved high-speed digital design for increased map drawing and panning speeds. This fish finder from Garmin 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 Fish finder also accepts BlueChart g2 Vision Cards for added features and functionality such as high-resolution satellite imagery, 3-D views and Auto Guidance technology.

The GPSMAP-421 basemap contains worldwide satellite images in place of traditional maps. The Garmin fish finder also comes standard with a high-sensitivity GPS receiver for superior satellite tracking and quicker acquisition times. In addition, the Compact FishFinder GPSMAP 421 Series from Garmin 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.

You can chose from the regular and sounder version of Garmin GPSMAP421. Where applicable, the sounder version, Garmin 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.

Available Garmin Compact Fish Finders models:

  • 010-00764-00: Garmin GPSMAP 421 Compact Fishfinder
  • 010-00764-01: Garmin Sounder FishFinder GPSMAP421s w/ Dual Frequency Transducer
  • 010-00764-02: Garmin Compact Fish Finder GPSMAP 421s Series without Transducer

Specifications for Garmin Sonar Fish Finder GPSMAP-421 Series:

Battery: None
Waterproof: Yes (IPX7)
Antenna: Internal
NMEA input/output: NMEA 0183 compatible and NMEA 2000 certified
High-sensitivity receiver: Yes
Basemap: Yes
Ability to add maps: Yes
Built-in memory: No
Accepts data cards: SD card slot
Routes: 100
Garmin sonar compatible: Yes
Garmin Marine Network compatible: No
Auto Guidance: yes (with optional BlueChart g2 Vision card)
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
Weight: 1.3 lb (590 g)

Features of Garmin GPSMAP-421 / 421s:

  • Has an ultra-bright 4" QVGA color display along with an improved high-speed digital design for increased map drawing and panning speeds
  • Has built-in, satellite-enhanced worldwide basemap and an easy-to-use interface designed to help you navigate the open waters with ease
  • Accepts BlueChart g2 Vision Cards for added features and functionality
  • Has a worldwide basemap with satellite images in place of more traditional maps
  • Has SD card slot that allows you easy to add additional maps without connecting to a computer

Package Contents:

  • Garmin Sonar Fish Finder GPSMAP 421/421s Series

Garmin Compact Chartplotter GPSMAP 421/421s w/ 4-inch QVGA Color Display Unorderable Models

Garmin GPSMAP421s Sounder Fishfinder without Transducer, MPN: 010-00764-02, UPC: 753759095871, Code: GA-FH-GPSMAP421-010-00764-02
Garmin Sonar Fishfider GPSMAP 421 Series, MPN: 010-00764-00, UPC: 753759095857, Code: GA-FH-GPSMAP421-010-00764-00
Garmin Sounder GPSMAP 421s Fish Finder w/ Dual Frequency Transducer, MPN: 010-00764-01, UPC: 753759095864, Code: GA-FH-GPSMAP421-010-00764-01

Garmin Compact Chartplotter GPSMAP 421/421s w/ 4-inch QVGA Color Display Comments