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Garmin GPSMAP 620 Marine & Car GPS Unit

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The Garmin GPSMAP 620 Marine and Car GPS Unit is a brilliant unit with two distinctive uses both as a road and land GPS and as a lake and sea navigational aid for boats.

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Garmin GPSMAP 620 Marine & Car GPS Unit

The Garmin GPSMAP 620 Marine and Car GPS Unit is a brilliant unit with two distinctive uses both as a road and land GPS and as a lake and sea navigational aid for boats.

The impressive 5.2-inch high-resolution screen works is as superb to use on the road as on the water.

If you load the Garmin GPSMAP 620 with the hugely successful BlueChart g2 Vision charts (sold separately), you will be equipping yourself with the highest-quality vector charts available plus tidal charts, 3D views of major features and even aerial and approach images of harbours to let you know where you are going and how best to negotiate any peculiarities of the lay out.

For road trips, you can simply switch to City Navigator for Garmin's superb Car GPS routing maps which include voice prompts, safety camera information and turn-by-turn guidance.

Once parked, you can then switch to walking mode and use Garmin's street maps and points of interest database to make the most of your sightseeing trip. And with up to 13 hours of battery life, you are very unlikely to have to worry if the Garmin GPSMAP 620 will abandon you.

The feature-rich Garmin GPSMAP 620 gives you everything you need all in one handy unit.

The GPSMAP 620 switches into Marine mode when plugged into the optional marine mount (not supplied) and it reverts to In-Car mode when plugged into the optional automotive mount (not supplied).

State-of-the-Art Mapping and Cartography

The GPSMAP 620 is supplied pre-loaded with a worldwide satellite basemap for ‘view-from-space’ imagery of shorelines and other surface features in the area. You need to purchase BlueChart g2 Vision charts and City Navigator separately to get the full functions in Marine and In-Car modes.

By Sea

The Garmin GPSMAP 620 is waterproof to IPX7.

In Marine mode and loaded with the optional BlueChart g2 Vision charts, the GPSMAP 620 provides a 3D ‘mariner’s eye view’ above the waterline and even a ‘fish eye view’ below the waterline. The GPSMAP 620 has new guidance technology that searches chart data to suggest the best passage with optional BlueChart g2 Vision data. And you will always get the big picture with a worldwide basemap that comes as standard with the GPSMAP 620.

The Garmin GPSMAP 620 is also NMEA 0183 compliant so it can be easily added to an existing marine network. And with access to fishing charts, tide and current data, marine services, coastal roads and more via optional BlueChart g2 Vision data, you will always be in the know while you are on the water.

By Land

Choose In-Car mode and the GPSMAP 620 provides turn-by-turn directions with the optional City Navigator NT. Route planning has never been easier.

Whether you are searching for an antique shop or an unspoilt pub, you will be able to plan the quickest and most efficient route to get there. You can also create custom points of interests (POIs) and set up proximity alerts to let you know what is in your path as you travel down the road.

What's in the Box

  • Garmin GPSMAP 620 Marine and Car GPS Unit
  • Pre-loaded worldwide satellite basemap
  • Marine mount with integrated vehicle power cable
  • Lithium-ion battery pack
  • AC charger
  • USB cable
  • Protective cove
  • Owner's manual
  • Quick reference guide
  • Installation guide
Unit dimensions (W x H x D) 5.9 x 4 x 1.9 inches
(15.0 x 10.2 x 4.8 cm)
Display size (W x H) 4.5 x 2.7 inches (11.4 x 6.9 cm);
5.2-inch (13.2-cm) diagonal
Display resolution (W x H) 800 x 480 pixels
Display type WVGA
Weight 17.3 oz (490.4 g)
Battery Rechargeable lithium-ion
Battery life Up to 13 hrs
Waterproof Yes (IPX7)
Antenna Internal
NMEA input/output NMEA 0183
RoHS version available Yes

Maps & Memory

Basemap Yes
Pre-loaded maps No
Ability to add maps Yes
Built-in memory Internal solid state
Accepts data cards SD card slot
Waypoints/favourites/locations 1500 (marine mode);
1000 (automotive mode)
Routes 50 (marine mode);
10 (automotive mode)
Track log 10,000 points,
20 saved tracks (marine mode);
10,000 points,
no saved tracks (automotive mode)


Garmin radar compatible No
Garmin sonar compatible No
CANet compatible No
Garmin Marine Network compatible No
Touchscreen Yes
Supports AIS (tracks target ship's position) Yes
Supports DSC (displays position data from
DSC-capable VHF radio)
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
City Navigator)
Automatic routing (turn-by-turn routing on roads) Yes (with optional
City Navigator)
XM WX weather & radio for US compatible No
Voice prompts (e.g. "Turn right in 500 ft") Yes (with optional
City Navigator)
Speaks street names (e.g. "Turn right on
Elm Street in 500 ft")
Yes (with optional
City Navigator)
Remote control No
Headphone jack/audio line-out Yes
Audio/video input/output No
Portable Yes
Automotive/motorcycle friendly Yes