Product details

The handy and buoyant GPSmap 78 is equipped with high-quality display technology, a WAAS-enabled GPS receiver with high sensitivity and HotFix™ satellite prediction. The striking TFT colour display with 256 colours is suitable for any ambient light, it is easy to read, even in bright sunlight. Battery life up to 20 hours. The device has ergonomically designed non-slip rubber side grips. It's even floatable! A microSD card slot is available for cartograpy, in addition to the internal memory (1.7 GB). The GPSmap 78 is equipped with a built-in worldwide basemap and a USB port, and it is BlueChart g3 - REGULAR compatible (please update the Firmware of the GPSMAP 78 with the Garmin Express Software to Version 7.20 or higher). Comes with manual and USB cable.

The GPSmap 78 also offers an additional electronic compass and a barometric altimeter. The 3-axis electronic compass shows the direction even if you're standing still and if the device is not horizontal. The barometric altimeter identifies your precise altitude with changes in air pressure, and you can even use it to read barometric pressure changes in real time – so you can keep an eye on changing weather conditions. With the GPSmap 78 you can share your waypoints, tracks, routes and geocaches wirelessly with other users with compatible devices, such as the location of your favorite fishing place.

NMEA0183 data output (separate cable required)
This Garmin handheld has the ability to output NMEA 0183 data to connect to various marine equipment. Below you will find a list of the data sets that are output by these devices.

The autopilot mode on the device interface only allows the following sets:


You can switch three groups of NMEA data sets on and off.
The "Heading, Deviation and Variation (HDG)" set contains the compass direction. The "Altitude (PGRMZ)" set contains the barometric altitude.

Chart module:

SD / Micro SD
C-Card MAX orange
C-Card NT + black

Compatible with the following nautical charts:

Garmin Bluechart G3 - REGULAR (firmware version 7.20 or higher - update via Garmin Express)

Nautical chart features:

Chart system Vector charts Shaded depths and shorelines Harbor charts Tidal areas Fishing permits / Bathymetric contours Auto Guidance 3D Mariner's Eye / Fish Eye
Garmin Bluechart G3 - REGULAR


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no-flag Short manual
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pl-flag Short manual
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multi-flag Short manual
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What other SVB customers have to say

100% real reviews
Roberto S.
Flag of Italy Verified purchase
Garmin GPSmap 78
the product arrived on time and in perfect condition .. at this time the price was the best on the market .. SVB was perfect
Antoine G.
Flag of France Verified purchase
Rapport qualité prix imbattable
Günter B.
Flag of Austria Verified purchase
Great product and fast delivery

Customers ask customers

Ask other SVB customers who have already purchased this product from us about their experience.

Your question will be automatically forwarded to other SVB customers and published on the product page. Please do not ask any questions which can only be answered by the SVB team – such as the status of an order or product availability. You are also more than welcome to contact our SVB team by email at: or by phone on: +49 (0)421 57290510 .

  • More "Customers ask customers" available in the following languages :
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Technical question

User image of Stuart D.
Stuart D. asked
on Mar 6, 2018
Flag of English Does the Garmin GPS 78s come with preloaded charts of the Mediterranean? We are presently cruising the Balearics, would this be on the charts thanks Stuart
User image of Felix W.
Felix W. answered
on Mar 9, 2018
Dear Stuart, the Garmin GPS78s comes without cartridges. We recommed Garmin G2 Bluecharts, you will find a selection here:

General question

User image of József S.
József S. asked
on Jan 27, 2018
Flag of English Willkommen! Der Garmin GPSmap 78 s, verfügbar mit dem ungarischen Menü?
User image of Felix W.
Felix W. answered
on Feb 14, 2018
Hallo József, leider ist das Menü nicht in ungarisch umschaltbar.
User image of Stuart D.
Stuart D. asked
on Mar 5, 2018
Flag of English can you show me a picture of the power cable that goes into the unit please?
User image of Judith S.
Judith S. answered
on Mar 6, 2018
Hi Stuart, we will be taking new pictures and upload them to the product asap.
User image of Staffan W.
Staffan W. asked
on Mar 11, 2018
Flag of English Gibt es eine passende Tasche dazu von Garmin? Besten Dank, Staffan W.
User image of Sven W.
Sven W. answered
on Dec 28, 2018
Dear Staffan, we are able to order a pocket. But we have to inquiry it. Please let us know if you still like to get the pocket. Your SVB-team.
User image of Staffan W.
Staffan W. asked
on Mar 11, 2018
Flag of English Wird das Gerät mit Batterie geliefert? Wenn nicht; Hat SVB passende Batterien lagernd bzw. lieferbar? Danke, Staffan W.
User image of Sven W.
Sven W. answered
on Dec 28, 2018
Dear Staffan, there are no batteries included. Please Noticed our: -75311- Your SVB-team.