Explore coastal waters and more
Garmin designed the GPSMAP 78sc for boaters and outdoor enthusiasts who want a powerful navigation device that's slim, lightweight, and ready for adventures on the water or on land. It even floats!
The rugged GPSMAP 78sc comes with built-in BlueChart® g2 coastal charts and a worldwide basemap with imagery — perfect for all your outdoor pursuits. It also features a 3-axis compass, barometric altimeter, crisp color mapping, a high-sensitivity receiver, new molded rubber side grips. Map detail includes shorelines, depth contours, navigational aids, harbors, marinas and more for the U.S. and Bahamas. With its high-sensitivity, WAAS-enabled GPS receiver and HotFix™ satellite prediction, the GPSMAP 78sc locates your position quickly and maintains its GPS location even in heavy cover.
Get your bearings
GPSMAP 78sc includes 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. That helps you keep an eye on changing weather conditions, which is a big benefit on land or water.
After a busy day of exploring, you can connect this Garmin to your laptop and visit the Garmin Connect™ website for a detailed analysis of your activities. This site offers an activity table and allows you to view your activities on a map using Google™ Earth. You can explore routes uploaded by other Garmin Connect users, and share your experiences on your favorite social media platforms. The GPSMAP 78sc also supports geocaching GPX files for downloading geocaches and details straight to your unit.
With GPSMAP 78sc, you can also share your waypoints, tracks, routes and geocaches wirelessly with other compatible device users. Just press "send" to share the location of your favorite fishing spot with a friend.
Need more maps?
The GPSMAP 78sc uses a built-in microSD™ card slot for loading Garmin's wide array of detailed marine, topographic and road maps. You can also 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 waterproof battery compartment, so you don't have to worry about getting it wet.
The GPSMAP 78sc also supports BirdsEye™ Satellite Imagery (subscription required), that lets you download satellite images to your device and integrate them with your maps. In addition, this handheld is compatible with Custom Maps, free software that transforms paper and electronic maps into downloadable maps for your device.