GARMIN GPSMAP 78 Series GPS Comparison
Here's how the models are different and how it changed from the GPSMAP 76CSx

Click here to compare with other Garmin, Magellan, DeLorme and Lowrance handhelds				Discontinued
	GPSMAP 78	GPSMAP 78s	GPSMAP 78sc	GPSMAP 76CSx
Unit dimensions:	2.6" x 6.0" x 1.2" (6.6 x 15.2 x 3.0 cm)	2.6" x 6.0" x 1.2" (6.6 x 15.2 x 3.0 cm)	2.6" x 6.0" x 1.2" (6.6 x 15.2 x 3.0 cm)	2.7" x 6.2" x 1.2" (6.9 x 15.7 x 3.0 cm)
Display size:	1.43" x 2.15" (3.6 x 5.5 cm); 2.6" diag (6.6 cm)	1.43" x 2.15" (3.6 x 5.5 cm); 2.6" diag (6.6 cm)	1.43" x 2.15" (3.6 x 5.5 cm); 2.6" diag (6.6 cm)	1.6" x 2.2" (4.1 x 5.6 cm)
Display resolution:	160 x 240 pixels	160 x 240 pixels	160 x 240 pixels	160 x 240 pixels
Display type:	transflective, 65-K color TFT	transflective, 65-K color TFT	transflective, 65-K color TFT	256 level color TFT
Weight w/batteries:	7.7 oz (218.3 g)	7.7 oz (218.3 g)	7.7 oz (218.3 g)	7.7 oz (218 g)
Battery:	2 AA batteries (not included); NiMH or Lithium recommended	2 AA batteries (not included); NiMH or Lithium recommended	2 AA batteries (not included); NiMH or Lithium recommended	2 AA batteries (not included)
Battery life:	20 hours	20 hours	20 hours	18 hours, typical
Waterproof:	yes (IPX7)	yes (IPX7)	yes (IPX7)	yes (IPX7)
Floats:	✔	✔	✔	✔
High-sensitivity receiver:	✔	✔	✔	✔
Interface:	USB and NMEA 0183 compatible	high-speed USB and NMEA 0183 compatible	high-speed USB and NMEA 0183 compatible	serial and USB
	GPSMAP 78	GPSMAP 78s	GPSMAP 78sc	GPSMAP 76CSx
Basemap:	✔	✔	✔	✔
Preloaded maps:	x	x	yes (preloaded U.S. coastal charts)	x
Ability to add maps:	✔	✔	✔	✔
Built-in memory:	1.7 GB	1.7 GB	1.7 GB	0
Accepts data cards:	microSD™ card (not included)	microSD™ card (not included)	microSD™ card (not included)	128 MB microSD™ card (included)
Waypoints:	2000	2000	2000	1000
Routes:	200	200	200	50
Track log:	10,000 points, 200 saved tracks	10,000 points, 200 saved tracks	10,000 points, 200 saved tracks	10,000 points, 20 saved tracks
	GPSMAP 78	GPSMAP 78s	GPSMAP 78sc	GPSMAP 76CSx
Automatic routing:	yes (with optional mapping for detailed roads)	yes (with optional mapping for detailed roads)	yes (with optional mapping for detailed roads)	yes (with optional mapping for detailed roads)
Electronic compass:	x	yes (tilt-compensated, 3-axis)	yes (tilt-compensated, 3-axis)	✔
Barometric altimeter:	x	✔	✔	✔
Camera:	x	x	x	x
Photo navigation:	✔	✔	✔	x
Picture viewer:	✔	✔	✔	x
Custom maps compatible:	✔	✔	✔	x
Geocaching-friendly:	yes (paperless)	yes (paperless)	yes (paperless)	✔
Hunt/fish calendar:	✔	✔	✔	✔
Sun and moon information:	✔	✔	✔	✔
Tide tables:	✔	✔	✔	x
Area calculation:	✔	✔	✔	✔
Custom POIs:	✔	✔	✔	✔
Unit-to-unit transfer:	x	✔	✔	x
Garmin Connect™ compatible:	✔	✔	✔	x
	GPSMAP 78	GPSMAP 78s	GPSMAP 78sc	GPSMAP 76CSx

(1) Electronic compass: Provides direction information while you are standing still.
(2) Barometric altimeter: Gives altitude accurate to 10 feet with proper calibration.
(3) Elevation profiling: Records your "trip profile" in elevation
(4) Area calculation: Calculates the area enclosed by the track log

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