Bay Marine Electronics


Garmin GPSMAP 78sc

Regular Price: $599.00

Special Price: $549.00

Garmin GPSMAP 78sc

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The fact that this units floats makes it stand out from the others. It has a  pretty good feature set too, the triple axis compass is especially handy, and the tide tables are a great extra that most people dont know about!

The rugged GPSMAP 78sc includes preloaded NZ & AUS G2 charts and features a 3-axis compass, barometric altimeter, crisp color mapping, a high-sensitivity receiver, new molded rubber side grips, plus a microSD card slot for loading additional maps. And it floats!

Explore Coastal Waters

GPSMAP 78sc comes with built-in BlueChart g2 coastal charts and a worldwide basemap with imagery — perfect for all your outdoor pursuits. Map detail includes shorelines, depth contours, navaids, harbors, marinas and more. The 78sc is IPX7 waterproof and even floats in water.

Get Your Bearings

GPSMAP 78sc has a built-in 3-axis tilt-compensated electronic compass, which shows 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 78sc you can share your waypoints, tracks, routes and geocaches wirelessly with other compatible device users. Now you can send the location of your favorite fishing spot to a friend to find. Sharing data is easy. Just press “send” to transfer your information to similar units.

Keep Your Fix

With its high-sensitivity, GPS receiver and HotFix satellite prediction, GPSMAP 78sc 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 78sc 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  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 waterproof battery compartment, so you don't have to worry about getting it wet. GPSMAP 78sc also supportsBirdsEye Satellite Imagery (subscription required), that lets you download satellite images to your device and integrate them with your maps. In addition, the 78sc 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. 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 78sc 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 78sc stores and displays key information, including location, terrain, difficulty, hints and descriptions, which means no more manually entering coordinates and paper print outs! Simply upload the GPX file to your unit and start hunting for caches. Slim and lightweight, 78sc is the perfect companion for all your outdoor pursuits.

GPSMAP 78sc: Colorful maps, durable design and buoyant – everything a mariner needs.


Physical & Performance:

Unit dimensions, WxHxD:            2.6" x 6.0" x 1.2" (6.6 x 15.2 x 3.0 cm)

Display size, WxH:            1.43" x 2.15" (3.6 x 5.5 cm); 2.6" diag (6.6 cm)

Display resolution, WxH:               160 x 240 pixels

Display type:      transflective, 65-K colour TFT

Weight:                7.7 oz (218.3 g) with batteries

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

Battery life:        20 hours

Waterproof:       yes (IPX7)

Floats:   yes

High-sensitivity receiver:              yes

Interface:            high-speed USB and NMEA 0183 compatible

Maps & Memory:

Basemap:            yes

Preloaded maps:              yes

Ability to add maps:        yes

Built-in memory:              1.7 GB

Accepts data cards:         microSD™ card (not included)

Waypoints/favourites/locations:              2000

Routes:                200

Track log:             10,000 points, 200 saved tracks

Features & Benefits:

Automatic routing (turn by turn routing on roads):           yes (with optional mapping for detailed roads)

Electronic compass:        yes (tilt-compensated, 3-axis)

Touchscreen:     no

Barometric altimeter:     yes

Camera:               no


yes (paperless)

Custom maps compatible:


Photo navigation (navigate to geotagged photos):           yes

Outdoor GPS games:      no

Hunt/fish calendar:         yes

Sun and moon information:        yes

Tide tables:         yes

Area calculation:               yes

Custom POIs (ability to add additional points of interest):             yes

Unit-to-unit transfer (shares data wirelessly with similar units): yes

Picture viewer: yes

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


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