Home > GPS > Marine GPS > Garmin GPSMAP 556

Garmin GPSMAP 556

Product Code: GAR556

Whether you're looking to enjoy a day out boating or you're after the one that got away, the Garmin GPSMAP 556 offers the brightest, sharpest graphics seen on a 5-inch screen.

Garmin GPSMAP 556 is preloaded with Garmin BlueChart g2 UK and Ireland mapping. On the water for easy marine navigation with no compromise - optional BlueChart g2 Vision cartography provides comprehensive marine charting and 3D views above and below the waterline.

Garmin GPSMAP 556/556s has been discontinued.

Accessories, spares and parts are still available for your GPSMAP 556/556s, as are marine BlueCharts.

For the latest range of marine chartplotters click here.

Garmin GPSMAP 556 is a compact chartplotter that features a high-resolution, super-bright 5-inch VGA colour display along with an improved high-speed digital design for increased map drawing and panning speeds. It’s ready to go with an easy-to-use interface and a built-in, satellite-enhanced basemap preloaded with Garmin BlueChart g2 UK and Ireland marine charts. Garmin GPSMAP 556 also accepts BlueChart g2 Vision cards for added features and functionality such as high-resolution satellite imagery, Mariner’s and Fish Eye views and Auto Guidance technology.

Explore the Seas

The Garmin GPSMAP 556 comes ready to go with preloaded marine charts for the UK and Ireland. For all other areas, the Garmin GPSMAP 556 has a worldwide basemap with satellite images in place of more traditional maps. The Garmin GPSMAP 556 also comes standard with a high-sensitivity GPS receiver for superior satellite tracking and quicker acquisition times. 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.

‣3D mariner's eye view or fish eye view provides you with a 3-dimensional perspective of chart information, both above the waterline and below it.

‣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.

The GPSMAP 556s version includes a sounder. The sounder enables the chartplotter to define the depth of the water, define where fish are and find objects underwater up to 610 metres (2000 feet) below the waters surface. However, for the sounder to function you'll need to separately buy a Garmin Transducer. There are three types of transducers available. The specific one to buy depends on type of vessel/boat/rib and where or how you'd like to mount the transducer. The three are:

‣Transom Mount - for outboard powered boats and fits to the transom of the boat.
‣In-hull mount - for non-outboard powered boats for only single skin fibre glass boats.
‣Through-hull mount - for non-outboard powered boats. Ideal for wooden, steel boats, etc.

To find the perfect transducer to partner your GPSMAP 556s and your boat please complete our online form here. Pictured below, transom mounted transducer, thru-hull transducer and in-hull transducer.

Garmin GPSMAP 556 Features

‣5-inch bright colour VGA display
‣Preloaded worldwide basemap
‣Preloaded Garmin BlueChart g2 UK and Ireland
‣Built-in GPS Antenna
‣Supports AIS and DSC
‣NMEA 2000 compliant
‣Waterproof to IPX7
‣SD card slot allows upgrade to BlueChart g2 Vision cartography
‣1 Year manufacturers guarantee.

Chart Coverage

Garmin GPSMAP 556 marine chartplotters are preloaded with Garmin BlueChart g2 UK and Ireland mapping (pictured right).

The chart features detailed marine cartography coverage of the British Isles in their entirety, including the Thames Estuary, Caledonian Canal, Outer Hebrides, Shetland and Orkney Islands, Isle of Wight, Isle of Man, and the Irish Sea.

Coverage across the English Channel from Douarnenez, France to Emden, Germany, including the Channel Islands, and the Seine River to Rouen, France Detailed coverage includes Antwerp, Belgium, Rotterdam, Netherlands, Amsterdam, Netherlands, and the Ijsselmeer in full.

In future years you can purchase a marine map update SD card to update the preloaded UK and Ireland charts on the Garmin GPSMAP 556.

What's in the box? (when purchased from ActiveGPS.co.uk)

‣Garmin GPSMAP 556
‣Preloaded Garmin BlueChart g2 UK and Ireland
‣Tilt/swivel Mount
‣Protective Front Cover
‣Power/Data Cable
‣Owner's Manual

Garmin GPSMAP 556 Accessories

Looking for Garmin GPSMAP 556 or GPSMAP 556s accessories? Accessories available to purchase include protective cover, flush mount kit and second mounting station. To view them all click here. If you'd like to add a transducer to your GPSMAP 556s please see this page.

Garmin GPSMAP 556 Charts

Add Garmin BlueChart g2 HD and g2 Vision HD marine charts to your Garmin GPSMAP 556/556s, view the different charts you can buy from ActiveGPS here.

Garmin GPSMAP 556 Questions and Answers

Question: I own a GPSmap 556 for use on my boat. How do I update the charts. If there was an internet cable which came with it, I cannot find it! If such a cable exists how do I order it or do I need a new card?

Answer: I can confirm that no such update cable exists.

In order to update your Garmin GPSMAP 556 preloaded charts you will need to buy the BlueChart g2 UK Ireland Update SD card.

If you however you want a different region or to upgrade to the g2 Vision HD version you will need to buy a new chart.

Do you have a question about the Garmin GPSMAP 556? Submit your question via our contact page.

Garmin GPSMAP 556 Technical Specification

‣Technology: GPS
‣Display: 5-inch VGA display (480 x 640 pixels)
‣Battery: None
‣Waypoints/favourites/locations: 3,000
‣Routes: 100
‣Track Log: 20,000 points, 50 saved tracks
‣Basemap: Worldwide
‣NMEA input/output: NMEA 0183, NMEA 0183 compatible and NMEA 2000 certified
‣Built-in memory: None (cannot load maps to internal memory)
‣SD card slot: Yes
‣Garmin radar compatible: No
‣Garmin sonar compatible: No
‣Waterproof: Yes, IPX7
‣Dimensions: Width - 150mm, Height - 163mm, Depth - 74mm
‣Weight: 0.8kg
‣Guarantee: 1-year
‣Garmin GPSMAP 556 manual

Manual requires Adobe Acrobat Reader
Download a free copy here

This product is a sophisticated electronic device which requires that you read, understand, and act upon the information given in the instruction manual (usually available via the above 'manual' link). You will need internet access and, in accordance with the manufacturers’ recommendations, regularly seek out and accept all firmware or software updates offered by the manufacturer. All GPS devices need to ‘see’ the satellites in the sky. Therefore you will need to know that your vehicle does not have glass that will block or impede the GPS signal.

Why buy from us?

We are official Authorised Internet Retailers for Garmin. We sell genuine Garmin products, accessories and maps. We purchase from assigned Garmin UK distributors. We do not buy on the grey market and we do not sell counterfeit products. You can rest assured that by purchasing from ActiveGPS you will receive the full support of Garmin.

Page updated: 18th October 2017

Buying a Marine GPS?

Garmin Transducer Buyer's Guide


We offer UK, Europe and Worldwide deliveries. We despatch orders at 5.30pm on Monday, Tuesday, Wednesday, Thursday and Friday. We need to receive your order on those days by 4.30pm. When possible we may despatch orders received after that time. No orders are despatched after 5.30pm and no orders are despatched on Saturday or Sunday.

We offer FREE UK delivery on all orders of £40.00 or more, plus next working day and guaranteed Saturday delivery options. Click here for further info. All options also appear at the basket pages.

Telephone Number:

01733 777623

Monday to Friday 9:30am to 5:00pm (UK Time)

ActiveGPS.co.uk Copyright © Active Alliance Limited 2005-2019 | Company Number - 05200677 | VAT Number - GB 834 2222 57
Text compiled by and copyright Active Alliance Ltd. Plagiarism software in use - do not copy any of our website text, images or videos.