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Garmin GPS III Plus

Garmin GPS III Plus
alaScore 66

21 reviews

Apr, 2017

alaTest has collected and analyzed 21 reviews of Garmin GPS III Plus. The average rating for this product is 4.3/5, compared to an average rating of 4.0/5 for other GPS for all reviews. People are impressed by the durability. The usability is also mentioned favorably, but the memory and screen get critical reviews.

usability, durability

price, screen, memory

We analyzed user and expert ratings, product age and more factors. Compared to other GPS the Garmin GPS III Plus is awarded an overall alaScore™ of 66/100 = Good quality.

Review analysis

(Based on 21 reviews)

User Reviews  

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Consumer review by: ( review summary for Garmin GPS III Plus


alaTest has collected and analyzed 11 user reviews of Garmin GPS III Plus from The average user rating for this product is 4.5/5, compared to an average user rating of 4.0/5 for other GPS on Reviewers are impressed by the screen. The usability is also mentioned favorably, but many are negative about the price.

usability, screen


91% of the reviews on give this product a positive rating.

This summary is based on the products: Garmin GPS III Personal NavigatorGarmin GPS III Personal Navigator

Apr, 2017

Product Specifications

Garmin's GPS III Plus offers cartographic capabilities formerly found only in high-end automotive navigation and marine chartplotting units. Simply plug it into a PC and download an extra 1.44 MB of map data from Garmin's line of MapSource CD ROM's to give you instant detailed maps. Whether you're cruising the streets or pounding the waves, Garmin has the maps you need. Choose the U.S. Roads and Recreation CD for city street level detail and even inland marine features such as lake and river shorelines, boat ramp and marina locations. Other CD's give you worldwide coverage of coastlines, including a database of coastal cities, navaids and inland roads. Even without additional cartography, the basemap in the GPS III Plus will get you where you're going. More than 10, 000 new towns have been added to the permanent basemap, as well as airport locations, secondary roads in metro areas and even detailed exit information for the federal interstate highway system, including information about available lodging, food and service stations.


Run Time (Up To):36hour(s)

Built-in Display

Resolution:100 x 160

Dimensions & Weight


GPS Software

Maps Included:Alaska / Canada / Central America / Mexico / South America / USA

GPS System

GPS Functions / Services:Bearing / Distance / Electronic compass / Heading / MOB (Man Overboard) / Speed / Time/date/Bearing / Electronic compass / MOB (Man Overboard) / Time/date/Electronic compass / MOB (Man Overboard) / Time/date
Receiver:12 channel
Recommended Use:Automotive / Hiking / Marine
Type:GPS receiver


Model:III/III Plus
Packaged Quantity:1
Product Line:Garmin GPS


Tracklog Points:1900/2000
Waypoints per route:30