Garmin GPSMAP 78s


For boaters and watersports enthusiasts who want to run with the best, the rugged GPSMAP 78s features a 3-axis compass, barometric altimeter, crisp colour mapping, high-sensitivity receiver, new moulded rubber side grips, plus a microSD card slot for loading additional maps.  Plus, it floats!

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The GPSMAP 78s comes with a built-in worldwide basemap, so you can navigate anywhere with ease.  Plus, like the rest of the 78-series, 78s is water resistant (IPX7) and even floats in water.

Get Your Bearings

GPSMAP 78s has a built-in 3-axis tilt-compensated electronic compass, which displays your heading even when you’re standing still, without holding it level.  Its barometric altimeter tracks changes in pressure to pinpoint your precise altitude and you can even use it to plot barometric pressure over time, which can help you keep an eye on changing weather conditions.

Share Wirelessly

With GPSMAP 78s you can share your waypoints, tracks, routes and geocaches wirelessly other compatible device users.  Now you can send the location of your favourite fishing spot to a friend to find.  Sharing data is easy, simply press “send” to transfer your information to similar units.

Keep Your Fix

With its high-sensitivity, WAAS-enabled GPS receiver and HotFix satellite prediction, GPSMAP 78s locates your position quickly and precisely and maintains its GPS location even in heavy cover and deep canyons.  The advantage is clear, whether you’re in deep woods or just near tall buildings and trees, you can count on GPSMAP 78s to help you find your way when you need it the most.

Add Maps

Adding more maps is easy with Garmin's wide array of detailed marine, topographic and road maps, available on microSD card.  Conveniently plug in BlueChart g2 preloaded cards for a great day on the water or City Navigator NT map data for turn-by-turn routing on roads.  The card slot is located inside the water resistant battery compartment, so you don't have to worry about getting it wet.  GPSMAP 78s also supports BirdsEye Satellite Imagery (subscription required), that lets you download satellite images to your device and integrate them with your maps.  In addition, the GPSMAP 78s is compatible with Custom Maps, free software that transforms paper and electronic maps into downloadable maps for your device.

Get Connected

You've been busy exploring and now you want to store and analyse your activities.  With a simple connection to your computer and to the Internet, you can get a detailed analysis of your activities and send tracks to your outdoor device using Garmin Connect.  This one-stop site offers an activity table and allows you to view your activities on a map using Google Earth.  Explore other routes uploaded by millions of Garmin Connect users and share your experiences on Twitter and Facebook.  Getting started is easy, so get out there, explore and share.

Find Fun

GPSMAP 78s supports geocaching GPX files for downloading geocaches and details straight to your unit.  By going paperless, you're not only helping the environment but also improving efficiency.  GPSMAP 78s stores and displays key information, including location, terrain, difficulty, hints and descriptions, which means no more manually entering coordinates and paper printouts.  Simply upload the GPX file to your unit and start hunting for caches.  Slim and lightweight, GPSMAP 78s is the perfect companion for all your outdoor pursuits.


Display size, WxH

3.6 x 5.5 cm; 6.6 cm diagonal

Display Type

Transflective, 65-K colour TFT

Weight (g)

218.3 g with batteries

Battery Life

up to 20 hours

Water Rating


Memory / History

1.7 GB


2 AA batteries (not included); NiMH or Lithium recommended

Display resolution, WxH

160 x 240 pixels

High Sensitivity Receiver



High-speed USB and NMEA 0183 compatible

Physical Dimensions

6.6 x 15.2 x 3.0 cm

Maps & Memory
Ability To add Maps




Waypoints / Favourites / Locations




Accepts Data Cards

microSD™ card (not included)

Track log

10,000 points, 200 saved tracks

Barometric Altimeter



Yes (tilt-compensated 3-axis)

Outdoor Recreation Features
Area Calculation


Hunt Fish Calendar


Sun and Moon Information


Automatic Routing (turn by turn routing on roads)

Yes (with optional mapping for detailed roads)


Yes, paperless

Custom Maps Compatible


Picture Viewer


Garmin Connect™ Features
Garmin Connect™ compatible (online community where you analyse, categorise and share data)


In The Box

  • GPSMAP 78s
  • Wrist strap
  • USB cable
  • Quickstart Guide

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Navworld offers free delivery on all purchases over R 2,000.00.

Customers will still have the option of placing orders that fall below this qualifying value conditional on these orders clearly specifying a Delivery Charge of R 172.50 Incl. VAT.

Subject to availability and receipt of payment, orders will be processed within 3-4 working days and delivery will be confirmed by way of email.

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For telephonic support, please call the Garmin Support Centre on 011 251 9999 or 0861 427 646.


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