Garmin GPSMAP 78


For boaters and watersports enthusiasts who want to run with the best, the rugged GPSMAP 78 features crisp color mapping, high-sensitivity receiver, new molded rubber side grips, plus a microSD™ card slot for loading additional maps. And it floats.


  • Explore

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

  • Keep Your Fix

With its high-sensitivity, WAAS-enabled GPS receiver and HotFix satellite prediction, GPSMAP 78 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 78 to help you find your way when you need it the most.

  • Add Maps

Adding more maps is easy with our wide array of detailed marine, topographic and road maps, available on the 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 (see maps tab for compatible maps). The card slot is located inside the water-resistant battery compartment, so you don’t have to worry about getting it wet. GPSMAP 78 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 78 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 analyze 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. 

  • Find Fun

GPSMAP 78 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 78 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, 78 is the perfect companion for all your outdoor pursuits.




Physical dimensions6.6 x 15.2 x 3.0 cm
Display size3.6 x 5.5 cm; 6.6 cm (Diagonal)
Display resolution160 x 240 pixels
Display typeTransflective, 65-K color TFT
Weight218.3 g with batteries
Battery2 AA batteries (not included); NiMH or Lithium recommended
Battery life20 hours
Water ratingIPX7
Memory/History1.7 GB
High-sensitivity receiverYes
InterfaceUSB and NMEA 0183 compatible


Maps & Memory

Ability to add mapsYes
Storage and Power CapacitymicroSD card (not included)
Tracklog10,000 points, 200 saved tracks


Outdoor Recreation Features

Area calculationYes
Automatic routing (turn by turn routing on roads)   Yes

 (with optional mapping for detailed roads)

Geocaching-friendlyYes (Paperless)
Custom maps compatibleYes
Hunt/fish calendarYes
Sun and moon informationYes
Picture viewerYes


Garmin Connect™

Garmin Connect™ compatible (online community where you analyze, categorize and share data)Yes


Additional information

Weight218.3 g
Dimensions6.6 × 15.2 × 3.0 cm


There are no reviews yet.

Be the first to review “Garmin GPSMAP 78”

Your email address will not be published. Required fields are marked *