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Garmin GPSMAP 178C

Garmin GPSMAP 178C
alaAverage 5

4 reviews

Nov, 2015

  • No negative mentions yet

alaTest has collected and analyzed 4 reviews of Garmin GPSMAP 178C. The average rating for this product is 5.0/5, compared to an average rating of 4.0/5 for other GPS for all reviews. Reviewers really like the usability. The design is also mentioned favorably.

design, usability

On average, users rate this product 100/100.

Review analysis

(Based on 4 reviews)

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alaTest has collected and analyzed 4 user reviews of Garmin GPSMAP 178C from The average user rating for this product is 5.0/5, compared to an average user rating of 4.0/5 for other GPS on People are impressed by the usability. The design also gets good feedback.

design, usability

100% of the reviews on give this product a positive rating.

This summary is based on the products: Garmin GPSmap 178C Sounder GPS Navigaton Unit (Single-Frequency Transducer)Garmin GPSMAP 178C Sounder 4.25-Inch Waterproof Marine GPS and Chartplotter With Sounder (Internal Antenna)

Nov, 2015

Product Specifications

The GPSMAP 178C Sounder is a new-generation fully integrated chartplotter and powerful sonar, offering the same brilliant sunlight-readable color LCD, powerful features, and simple interface as the GPSMAP 172C - all in a compact, value-priced console that leaves fish nowhere to hide. It comes standard with a built-in worldwide marine basemap and accepts MapSource BlueChart offshore marine cartography - featuring detailed depth contours, inter-tidal zones, wrecks, navaids, and many other points of interest. For small-water anglers, the GPSMAP 178C Sounder is compatible with MapSource Recreational Lakes with Fishing Hot Spots - featuring fishing areas, boat ramps, marinas, and hazards for hundreds of popular U.S. and Canadian lakes. Pre-programmed data cards can be easily inserted into the slot on the front of the unit. This package includes single-frequency 200 kHz transducer for inland lakes and bays.

Built-in Display

Diagonal Size:4.5 / 4.5"/4.5"
Diagonal Size (metric):11.4 cm
Resolution:320 x 240/320 x 320

Dimensions & Weight


GPS System

GPS Functions / Services:MOB (Man Overboard) / Tide Tab/Tide Tab / MOB (Man Overboard)
Receiver:12 channel
Recommended Use:Marine
Type:GPS receiver


Model:178C/178C Sounder
Packaged Quantity:1
Product Line:Garmin GPSMAP


Waterproof: Yes


Tracklog Points:10000
Waypoints per route:50

Reference Resource

Category:Communication equipment
Series:Owner's Manual / Owners Manual/Quick Reference Guide
Title:GPSMAP 178C/178
Type:Reference book/User manual