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Cobra GPSM 4000 Nav One Mobile Navigator | 
 enlarge | Brand: Cobra
Category: CE
List Price: $999.99
Buy Refurbished: $130.55
You Save: $869.44 (87%)
New (5) from $214.99
Avg. Customer Rating:  15 reviews
Color: Black
Media: Electronics
Memorabilia: No
Batteries Included: No
Native Resolution: 320 x 240
Includes MP3 Player: 1
Shipping Weight (lbs): 2.7
Dimensions (in): 6 x 2 x 4
Speed
ETA (Estimated Time of Arrival)
MPN: GPSM 4000
Model: GPSM 4000
UPC: 028377500329
EAN: 0028377500329
Availability: Usually ships in 1-2 business days
Condition: FAST SHIPPING
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| Features:
| • | Plug-and-play mobile navigation system with built-in mapping database | | • | Automatic navigation with turn-by-turn directions and multilingual voice guidance | | • | Street-level detail map features 48 contiguous U.S. states, Hawaii, and major Canada metro areas | | • | 6 million points of interest; compatible with Cobra's real-time traffic receiver and antenna | | • | 5-inch, sunlight-readable, color display; 14 map zoom levels; 1-year warranty |
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| Editorial Reviews:
Amazon.com Product Description
Navigate your way through city streets and rural roads with the Cobra Nav One 4000 GPS navigation system. Equipped with Cobra's exclusive iASAP satellite acquisition technology, which receives uninterrupted, quick satellite signals even among urban canyons and dense foliage, the device is a must for the driver who doesn't want to mess with paper maps or printed MapQuest directions. The Nav One 4000 works simply: just enter the target address or point of interest, and the unit automatically determines the best route and offers turn-by-turn directions with clear voice guidance. The built-in street-level map of the U.S. and Canada offers full, detailed coverage of potential routes, along with more than six million points of interest from which to choose, including banks, hotels, restaurants, entertainment options, gas stations, and more. And should the driver stray off course or take a detour, the Nav One 4000 automatically recalculates the route and provides fresh directions. Perhaps the Nav One 4000's most unique feature, however, is its compatibility with Cobra's optional traffic receiver and antenna (sold separately), which offer real-time traffic updates to commuters and travelers. The matchbook-sized receiver receives up-to-the-minute information on traffic accidents, congested roads, and construction zones in 48 major metropolitan areas across the U.S. As the unit processes the info--which it picks up from an FM radio feed via Tele Atlas N.V. and Clear Channel's Total Traffic Network--it automatically determines alternate routes, letting the driver detour around the worst snarls and enjoy a stress-free commute. It's the perfect unit for frustrated commuters and other folks who spend much of their day in the car. The maps and instructions are easier to read than ever thanks to the 5-inch color display, which sports wide viewing angles and a crisp lighting level that's readable in both bright sunlight and dim moonlight. It also offers 3-D views for easier navigation, along with 14 levels of map zoom and exclusive terrain display, making it simple for the directionally challenged to find their way. Additional features include a built-in gyroscope that maintains map positioning under tunnels and underpasses; an address book that holds up to 1,000 addresses in 20 customizable folders; multi-stop routing for drivers with complex itineraries; and Trip Planner and Trail mode functions. The Nav One 4000 comes with a dash mount and is backed by a one-year warranty on parts and labor. What's in the Box
Nav One 4000 receiver and display, mount, user's manual.
Product Description
Cobra Electronics is a leading global manufacturer of mobile communications products for consumers, having attained a leadership position in every market in which it currently does business. Cobra has a track record of designing innovative and award-winning products.PRODUCT FEATURES:Automatic Route Navigation;Portable Vehicle Navigation System;Automatic Route Navigation;5" Touchscreen High Resolution, Ultra-Bright Color Display;Over 7 Million Points-of-Interest;Automatic Re-Routing;Personalized Route Preferences;iA.S.A.P. (Intelligent Accelerated Satellite Acquisition Protocol);North America Street Level Detail Map;Easy Map Access;Trip Data;Trail Capture;3D Maps;Terrain Maps;Sensor Light.
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| Customer Reviews: Read 10 more reviews...
 Better than expected! November 13, 2005
52 out of 52 found this review helpful
I purchased the 4000 NAV One after extensive research and pondering which route to take. My prerequisites were about the same as all are looking for; Good size screen, preloaded maps, voice prompts that tell you street name, re-route calculations, quick acquisition time, easy software upgrades and numerous POI's. I must say I was skeptical at first with the only brands being on my mind were Garmin and Magellan. I even considered the Pioneer AVIC-N2 in dash navigation unit but quickly shot it down when I found out you have to load the navigation DVD to plot routes, start out on your route and have to pop the DVD back in if you want to bring up another destination or even a simple POI! This is unacceptable for a close to $2000 system (Pioneer is offering a $300 rebate at this time) when most of us will be listening to a CD, or MP3's on it. Oh by the way, the passenger can't even watch DVD's while the car is moving. I narrowed my choices down to the Garmin Street Pilot 2720 and the Cobra 4000 NAV One and weighed the two side by side. I chose the Cobra due to its screen being twice the size and it being a sturdier unit. It has very quick response time, a large color touch screen, customizable in every way. The unit has all that I expected and more, not to mention $100 less than the Street Pilot 2720 but I have to be fair that the 2720 does give you a remote to operate the system.
Solid Affordable Aftermarket Navigation, but... January 23, 2007
20 out of 20 found this review helpful
After a disasterous experience with a Sony NavU70 unit and after considering the Garmin system owned by a friend, and after doing extensive research and demoing some products at the local Circuit City, I finally selected the Cobra GPSM4000 sight unseen and bought it through Amazon. Frankly I wasn't expecting too much, and the appearance of the unit struck me as a little retro (too much chrome for my taste, as though this unit had been designed as an add-on for old GM vehicles). But when I put it in my 4x4 I was impressed. Although the manual warns you that it can take up to 20 minutes for a brand-new unit to orient itself based on the signals received from the orbiting satellites, the Cobra 4000 oriented itself within 60 seconds of being turned on. It was so quick that I found myself wondering if the people at the factory had somehow pre-programmed my location.
The screen is nice and bright, the touch-screen functionality is just the right degree of sensitivity, and all the key parameters are tunable through the menu options so you can customize the unit to perform according to your own preferences. New locations are simple to store (which makes waypointing easy) and the system provides breadcrumbs which is essential for off-roading. The Sony unit referred to earlier in this review was an ergonomic disaster and didn't support breadcrumbs nor simple location storage. It was pretty, though.
As real-time traffic data comes on-stream in the USA the real-time traffic option will become more worthwhile. I didn't purchase this option with my unit because it's not really available yet in my region and besides, there's no alternative when the local freeway is jammed. There is no route work-around possible, so it wouldn't help me much on a day-to-day basis. But one day, when the service is cheap and there are alternative routes to be found, it will be a worthwhile addition to the repertoire of all in-car navigation systems.
I really like the larger screen size, though while it is technically 5 inches in diameter the actual map size is about 4.5 inches because the borders are occupied with soft keys. Still, that beats the 3 inch and 3.5 inch screens found on other units like Garmin and Magellan and TomTomGo.
Voice prompting is nice & crisp, but the on-screen direction arrow with distance indicator is a little small, for those situations when you want to check whether it's the next turn or the one 50 feet after that.
Some GPS units scroll smoothly as you travel, keeping the cursor in the center of the map. The system in my Acura does that and I've become used to it. The Cobra unit works the other way: the cursor representing your vehicle travels across the screen and then, just as it reaches the edge of the screen, the entire map "jumps" to a new page and the process starts all over again. While my preference is for the Honda/Acura approach, the "jumping page" is something I can live with and isn't too distracting in practice. I care more about the accuracy of the unit and the Cobra is very accurate and fast to adjust.
The unit comes with a windscreen mount, but there's also a base plate in case you want to mount it to a horizontal surface. I was somewhat concerned about placing the unit in the windscreen area because off-road in the desert in the middle of the day it can get awfully hot right there, even with the A/C blowing hard. So I chose to purchase the optional external GPS receiver, which I mounted in the windshield area, and I placed the Cobra unit in the center binnacle where it is easy to see yet out of the direct sunlight (which also improves general visibility, as the screen never washes out because of being hit by direct light).
UPDATE: February 26th 2007. After taking the unit on its first extended trip (3 hours) it exhibited a major defect. After 25 minutes of continuous operation the unit began emitting a hot metal smell and the upper left portion of the screen became hot to touch; simultaneously the upper left portion of the screen turned dark and no longer displayed anything. After another 5 minutes the screen began to blink on and off rapidly, rendering it useless. Turning on the A/C and directing a stream of icy air at the unit did nothing to ameliorate the problem.
Beach Audio accepted the return of the unit and shipped me a replacement; I have not yet taken the replacement on a long (3+ hours) trip to see whether the new unit overheats like the old one did. Hopefully it was a one-off manufacturing defect as apart from the malfunction I was pleased with the previous unit.
Second Update: as of August 2008 the replacement is still functioning as intended. I'm irritated by the fact that it can take up to 15 minutes to acquire satellites upon start of the journey (afterwards it acquires almost instantly), and I've discovered that the database of street addresses is quirky - a location in Tahoe Vista was listed as being in Sacramento, even though the on-map icon was correctly placed in Tahoe Vista. Now that the unit has come down to around $200 I think it's OK for the money, but as I originally paid about $500 I think it was overpriced back then. Realistically there are much better units on the market now, and I'd definitely advise people to go with an integrated Bluetooth and MP3 functionality in any new standalone unit these days.
nothing comes close..a must for somebody on the GO June 5, 2006
12 out of 16 found this review helpful
Truly nothing comes close to this..nothing compares.After months and months of planning and window shopping and frequenting all the sites and stores where i can potentially buy a GPS.Truly,this is worth all my wait and patience.I just knew something out there is better than the famous brands im seeing @ BestBuy stores and Circuit City.The screen is great and the instructions are so precise,accurate and voice prompt is so clear,you won't even need to keep on looking at the screen to keep on the right track.The auto rerouting is an important factor for me too.PLus,the address book is totally cool and a timesaver.Everything you are looking for is here.From out of the box,i literally just plug it in my car and off the road i went.IT is user friendly too.It is not complicated at all.With its one touch "go home" button.It will literally take you home.Will even offer you two route options,how cool is that huh?Its worth my money its worth the wait.To travel with confidence on the road means a cobra by your side!
 Good navagation, bad finds November 7, 2005
11 out of 16 found this review helpful
Finding the address you desire to go to kept giving me a not in database error. The only way I could program any address was to go there and then save it. Not good for cross country trips. The unit works good otherwise, telling you where to turn etc. and finding places already programed like eating placing, other interesting sites, good. I would not recommend this unit for anyone, but of course, it could have been a faulty programming on the manufactures part.
Awesome visibility, great usability August 23, 2006
11 out of 11 found this review helpful
Our primary criteria were good visibility while mounted on the dash (or windshield) and, naturally, something that would be reasonably easy to use. This certainly meets those. The only visibility problem we had was that the screen was *too* bright while driving at night-fortunately there were two of us so the screen could be turned towards the passenger & away from the driver. Bright sun-never a problem. Driver's ability to read the screen when unit was mounted in front of the passenger-never a problem.
We had a problem in one area where roads that, according to the unit, crossed the freeway didn't. It kept telling us to take left turns that didn't exist, but we just kept going until we found a road that did cross, and it re-computed the route nicely.
Our salesperson warned us that the database only contained 'yellow page' addresses, but he was nice enough to suggest that we use the Map function to locate the nearest intersection & route to that when trying to find an address that wasn't in the database. That worked pretty well for us although we have a lot more learning to do before we'll feel really comfortable moving around in the map.
Similarly, we have quite a bit more learning to do before we'll be really comfortable designing a route we actually want. I'd like to see an option to say 'take this road' as well as the 'avoid this road' option-but I can realize the programming problems involved with that (e.g. the road you want to take may not take you where you want to go). Once both of the choices (fastest & shortest routes) took us on confusing winding paths when there was a more easily navigable option I could see on the map-but I couldn't figure out how to get the unit to map that route. An 'easiest navigation' option would be nice but I have no idea how a program could determine that.
Never had any problem or significant delay in finding our current position, never any significant delay in re-routing when we took a 'detour' (or missed a turn), very good voice prompts (although it prefers to use route numbers rather than street names, e.g. WA 529 vs. Meridian Rd.). Considering the current state of the art, this is an awesome unit.
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