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Garmin GPSMAP 640 Waterproof Car/Marine GPS and Chartplotter (With BlueChart g2 Marine Charts and City Navigator NT North America Maps) (Discontinued by Manufacturer)

1.0 out of 5 stars 1 customer review

Price: CDN$ 876.79 & FREE Shipping. Details
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  • Waterproof Land and Sea Navigator
  • 5.2 in Diagonal WVGA Touchscreen Display at 800x480 Pixels
  • Preloaded with BlueChart g2 Marine Cartography of the Coastal U.S./Including Alaska, Hawaii and the Bahamas
  • Supports GXM 40, XM WX Satellite Weather, XM Satellite Radio, XM NavTraffic
  • Turn by Turn Directions and Text to Speech

Garmin Back to School

Product Information

Technical Details
Item Weight490 g
Product Dimensions4.8 x 10.2 x 15 cm
Item model number010-00696-40
Weight490 grams
Additional Information
Customer Reviews 1.0 out of 5 stars 1 customer review
Best Sellers Rank
Shipping Weight2.6 Kg
Date First AvailableMarch 2 2009
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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.

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Customer Reviews

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Top Customer Reviews

By crj on June 23 2013
This garmin 640 is the worst gps! It couldnt even find a sattelite. dont waste your money! Bought two of them both were defective. So disappointed.
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Most Helpful Customer Reviews on (beta) HASH(0xa63ce54c) out of 5 stars 16 reviews
30 of 33 people found the following review helpful
HASH(0xa6019fb4) out of 5 stars Awesome GPS March 8 2010
By David Glover - Published on
Verified Purchase
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.
25 of 29 people found the following review helpful
HASH(0xb4154a50) out of 5 stars Garmin 640 April 11 2010
By Robert F. Hoffman - Published on
Verified Purchase
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.
63 of 81 people found the following review helpful
HASH(0xa5f18a80) out of 5 stars Technology in reverse... June 17 2009
By Nativescape - Published on
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.
5 of 5 people found the following review helpful
HASH(0xa6c9cac8) out of 5 stars great unit for a runabout April 14 2012
By another opinion - Published on
I picked up this unit for a 23 foot boat, because I wanted something portable.

I read all the negative reviews, and wondered what the reason could be. Should I purchase an older portable Garmin unit? After all, the 276c gets a lot of praise. After looking around, I realized that I could get a new or refurbished 640 for price comparable to what the old (and now unsupported units) now go for. Once I got the unit I realized that the fears were unfounded.

First of all, the screen is larger than the 176c/276c/376c/478. Because it's a touch screen, it's also quite easy to pan around. It's got the latest maps already built in. It's fast and accurate as well. I have no problems seeing the screen in bright daylight. It has the features you need from a gps.

I understand people's attachment to a unit that they already had, but why would you get an older, unsupported unit when you can get a newer unit that's about the same size, but has a larger viewable screen? I also picked up a set of g2 vision charts. I'm not sure they're really necessary, but they do give you point to point navigation.

At the end of the day, a gps just tells you where you are, and some units show your position on a map. If you want a transportable unit that has a decent size screen and updated software this is a good unit for a reasonable price. The built-in maps should be sufficient for most people's navigational needs.
6 of 7 people found the following review helpful
HASH(0xa61305a0) out of 5 stars Garmin 640 Marine GPS Sept. 1 2011
By Mojo dealer - Published on
Verified Purchase
Garmin GPSMAP640 initially had to be changed out because the first unit wouldn't download the updated chart's program. Garmin responded immediately and sent me a new unit. I use the unit for navigating the Potomac River, it's working great and with dead on accuracy. I highly recommend this unit if you are looking for a less expensive solution to marine navigation. One other thing the Garmin factory rep couldn't believe the deal I got from