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Garmin GPSMAP 640

Garmin GPSMAP 640
alaScore 80

30 reviews

Sep, 2014

alaTest has collected and analyzed 30 reviews from magazines and websites. Reviewers are impressed by the build quality and memory. The performance and usability also get good feedback, but many are less positive about the design and value for money.

screen, usability, performance, memory, build quality

value for money, design

We analyzed user and expert ratings, product age and more factors. Compared to other GPS the Garmin GPSMAP 640 is awarded an overall alaScore™ of 80/100 = Very good quality.

Review analysis

(Based on 30 reviews)

User Reviews  

Showing 1 - 30 of 30 Show Reviews: in English

Consumer review by: review summary for Garmin GPSMAP 640


alaTest has collected and analyzed 29 user reviews of Garmin GPSMAP 640 from The average user rating for this product is 3.4/5, compared to an average user rating of 3.9/5 for other GPS on

screen, usability, performance, memory, build quality

value for money, design

62% of the reviews on give this product a positive rating.

This summary is based on the products: Garmin GPSMAP 640 Waterproof Car/Marine GPS and ChartplotterGarmin GPSMAP-640 Car Marine GPSGarmin GPSMAP 696 Color Portable Aviation GPS

Consumer review by:

Multi-Purpose GPS For The Car And Boat


I have used several different GPS devices over the years and Garmin builds some of the best automotive and boating units you can buy. My latest purchase was the Garmin GPSMAP 640. Although expensive, this unit packs plenty of features with the weekend...

Built in maps. Auto and marine capable

Poor speaker. Expensive. Optional maps expensive


Product Specifications

With the Garmin GPSMAP 640, you'll get a full-featured marine chart plotter and an on-the-road navigator. The GPSMAP 640 comes standard with a high-sensitivity GPS receiver and brilliant, high-resolution touch screen display so you'll always know the way whether you're on land or at sea.