GPS 120

Part Number: 010-00084-00
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Whether you've been waiting to replace your fixed-mount loran or just want to outfit your boat with the best full-sized value in GPS, there's some good news waiting at your favorite marine dealer: the GPS 120.

The GPS 120 features a large, 4.25" diagonal backlit display and the same friendly operating software as our popular GPS 45. Take advantage of 250 waypoints, 20 routes, and a graphic highway to guide you back to the dock. Just add a differential antenna for better than 15 meter accuracy. And it's all packed in a rugged case with common-sense design and an easy-to-use button configuration.

With large, easy-to-read navigation displays and a dedicated Man Over Board (MOB) function, the GPS 120 is an ideal navigation solution for mariners who want more than a handheld—without the cost, complexity, and excessive size of typical fixed-mount units.


Physical & Performance

Physical dimensions 5.3" x 4.9" x 2.4" (15.6 x 5.1 x 1.23 cm)
Weight 1 lb. (454g)
Antenna External only
Power consumption 2 W max at 10 vDC

Maps & Memory

Preloaded maps None
Accepts data cards No
Waypoints 250
Routes 20
Track log 0

Features & Benefits

Garmin Radar compatible No
Garmin Sonar compatible No
NMEA 2000® compatible No
NMEA 0183 compatible Yes
Garmin Marine Network™ compatible No
Garmin SmartMode compatible (customizable monitor presets) No
Supports AIS (tracks target ships position) No
Supports DSC (displays position data from DSC-capable VHF radio) No
Tide tables No
Garmin Meteor Audio System compatible No
Supports Fusion Lync compatible marine radios No
GSD™ Black Box sonar support No
GCV™ Black Box sonar support No
SiriusXM™ Weather & Radio compatible No
BlueChart® Mobile (planning) compatible No
Garmin Helm compatible No
GRID™ (Garmin Remote Input Device) compatible No
Wireless remote compatible No
Wireless mouse compatible No

Sonar Features & Specifications

Dual-frequency (50/200 kHz) sonar capable No
Dual-beam (77/200 kHz) sonar capable No
CHIRP sonar technology No
DownVü™ No
SideVü™ No
Voltage range 10-40 vDC
Bottom lock (shows return from the bottom up) No
Water temperature log and graph No
Sonar recording No
Sonar history rewind No


NMEA 0183 input ports 1
NMEA 0183 output ports 1
Video input ports None
Video output ports None
Wireless connectivity No
Garmin Marine Network™ ports None

In the Box

  • GPS 120
  • Bail mount
  • Power/data cable
  • GA-28 low-profileantenna
  • Owner's manual
  • Quick reference guide


Maps for New Regions

Need maps for other regions? See all maps that are compatible with this device.

Need a map update?

Update the maps that came with your device for the best navigation experience.

Check for Updates