Garmin GPSMAP 640 Waterproof Car/Marine GPS and Chartplotter

by Garmin

Product Details

• Product Dimensions: 1.9 x 4 x 5.9 inches ; 1.1 pounds
• Shipping Weight: 6 pounds (View shipping rates and policies)
• Shipping: Currently, item can be shipped only within the U.S.
• ASIN: B001HL4YMG
• Item model number: 010-00696-40
• Average Customer Review: 3.4 out of 5 stars  See all reviews (8 customer reviews)
• Amazon Best Sellers Rank: #8,494 in Electronics (See Top 100 in Electronics)

Product Description

GARMIN GPSMAP-640 Car Marine GPS. Garmin International is pleased to announce the new GPSMAP 620 and GPSMAP 640. These two new Garmin products offer elements of the GPSMAP 5000 series marine chartplotters combined with elements of the popular nuvi series for use on the road all in one easy to use device. Portable and powerful, the GPSMAP 620 and GPSMAP 640 feature a high sensitivity GPS receiver and boast a large, super bright 5.2 in WVGA touchscreen display that reacts as users tap and drag through the intuitive user interface. Out of the box, the GPSMAP 640 comes complete with marine and automotive mounts. This true land and sea navigator features preloaded maps such as highly detailed BlueChart g2 marine cartography of the coastal United States /including Alaska, Hawaii and the Bahamas/ as well as highly detailed City Navigator NT road maps for North America.

Customer Reviews

Most Helpful Customer Reviews

22 of 25 people found the following review helpful:

5.0 out of 5 stars Awesome GPS, March 8, 2010

By 

David Glover (Massachusetts) - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: Garmin GPSMAP 640 Waterproof Car/Marine GPS and Chartplotter (Electronics)

So I bought this unit for one purpose, to use it on boats in my boat club. I currently own many of Garmin's products, from nuvis on the street to a GPSMAP 4208 on my own boat. This is a great little GPS. I have been using it in the car until the weather warms up and I can use it in the boat. I would not recommend using the included friction mount. RAM has an awesome windshield mount that works great. As far as functions and usability, I have no issues, everything is where it is on my Nuvi in auto mode and marine mode on my GPS MAP 640. I have a G2 Vision card that I use in my 4208 and I put it in the 640 and I get all the additional map features missing from the base map. For the reviewer who posted about the navigating function moving over land while in the water, that is because you need the G2 Vision card to use auto guidance. I would recommend this GPS to others who need a portable GPS.

56 of 69 people found the following review helpful:

1.0 out of 5 stars Technology in reverse..., June 17, 2009

By 

Nativescape (Chicago, IL USA) - See all my reviews

This review is from: Garmin GPSMAP 640 Waterproof Car/Marine GPS and Chartplotter (Electronics)

The 640 could/should have been so much better, had Garmin enabled the XM Weather capability in Automotive mode, in addition to the Marine mode, which does support XM Weather (WHY would they do such a stupid thing?!), and kept the Tracks/Tracks Management feature of the 276C/378/478 models, which are also geared toward Marine/Auto users. The unbelievable thing is that these missing features are all features that Garmin has implemented in older units - it is baffling why they would eliminate them in newer models, particularly at a time when this basic GPS functionality in the 640 is so widely available in smartphones. They also reduced the number of saved Routes. As the 640 is currently configured, I will stick to my trusty 478 for a long time, despite the fact that I would have liked to upgrade to a larger screen and updated GPS receiver technology found in the 640.

24 of 28 people found the following review helpful:

4.0 out of 5 stars Garmin 640, April 11, 2010

By 

Robert F. Hoffman (St. Louis, MO) - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: Garmin GPSMAP 640 Waterproof Car/Marine GPS and Chartplotter (Electronics)

I purchased this GPS as a back up to use on my boats and on land when required. I had contacted Garmin to make sure that the inland rivers were a part of the data base. When I received the unit and started using it I found the rivers were not on the unit. I then checked and found an update on the software was available. After reading the instruction, easy to understand, I hooked the unit to my MAC, with the provided cable, and down loaded the updated systemware and the river charts.
The unit meets my expectations at this point and I feel with more use, marine and auto, it will exceed my expectations.