28 August 2009

Garmin Nuvi 255W : Best In Its Class - Great For Traveling

If you spend much time driving in unfamiliar territory, especially if you rent cars in big cities, a good portable GPS makes an amazing difference. And the Garmin 255W is the best one I could find in the $250 - $350 range.

First this thing just plain works. I haven't had any issues with mine. It was easy to set up and figure out right out of the box, and it's easy to use. It never has had trouble getting sufficient signal unlike earlier and cheaper models.

I chose the 255W for several reasons: It uses some of the newest and best maps available. It has one of the more usable touch screens for entering destinations. It's fast to acquire satellites. And Garmin almost always comes out on top in reviews--especially in routing.

Ultimately, you buy a car GPS to get you from Point A to Point B as easily and efficiently as possible. And that's what the 255W does best. If you've ever had a "Brand X" GPS take you on some strange route that adds 20 minutes to your trip, has you turn the wrong way down a one way road, tell you to turn AFTER you've passed the street, frequently loses the satellite signal, or has old maps missing streets, you know how important this stuff is.

The 255W has a really clear display that's easy to see in any light. It's small enough to use on foot. The windshield mount works great and it's easy to toss in the glovebox when you park. It even tells you the speed limit on most roads. The "points of interest" feature works very well to find places to eat by type of cuisine, gas stations, etc.

The difference between the 255W and 205W is the 255 speaks street names and includes Alaska and Canada. The 205 and 205W will tell you to "turn right in 500 feet" which isn't as helpful or obvious as "turn right on Ivy Street in 500 feet". The "W" models are widescreen which makes entering destinations easier due to having a bigger "keyboard" and also lets you see more map area while driving.

All in all this isn't the cheapest GPS in its class but it's one of the best. My only gripe is you need an expensive add-on to get live traffic data--something that's included with the Magellan Roadmate 1430 which is close to the same price. But the Garmin 255W is a better GPS in every other way.


Thanks:

http://astore.amazon.com/garmin.nuvi.255w.gps-20

21 August 2009

Garmin Nuvi 760 : Recommended over TomTom 920T and Magellan 4250


I feel a great amount of sympathy for consumers shopping for a portable GPS systems or any sophisticated electronic product for that matter. There is such a dizzying array of models/brands/functions that it is both a blessing and a curse. I am very tech oriented and enjoy researching and evaluating new electronic gadgets. After a few days of reviewing GPS brands and models, I narrowed my selections down to the Garmin 760, Garmin 680, TomTom 920T and the Magellan Maestro 4250.

I am not going to dive deeply into the features and benefits of each model because many of the reviews on Amazon and other websites do a great job of that. However, I will summarize my thought process for finally choosing the 760 as the best GPS for me. Let me start by stating that there is no perfect GPS system and therein lies the challenge. Every model that I looked at had strengths and weaknesses and there wasn't a product that made it a clear cut decision. What I did (and recommend) is to make a priority list of the features and functions that are most important to you and to pick the model that best fits your requirements. This sounds like an obvious approach but it was a lot harder than it sounds.

The single most important aspect for me was the accuracy and capability of the routing engine. That seems simple enough but when you throw in the all the other features offered in today's GPS models the decision making process becomes much muddier. In staying with my original strategy, I determined that the Garmin 7xx series had the best routing engine for North America. My conclusion is based on consumer and professional reviews, discussion boards, and my own testing. With that being said, the 760 is not perfect and I have experienced a few quirky directions but nothing that was of great concern.

How do I like the 760? For the most part, I am extremely pleased with the performance and functionality of the 760. Like most people I do have a list of my personal improvement and enhancements for the system but they are not deal breakers. When I first received the unit, I tested it on a trip to Palm Springs and Joshua Tree National Park. The directions to and from the Park and Palm Springs were flawless and the GPS recognized all the main roads within the park. We actually encountered some road construction on one of the main highways and the traffic receiver recognized the jam but gave us a strange recommendation. It directed us to go down the off-ramp and immediately get on the next on-ramp. We did this twice and it actually moved us ahead in traffic. I'm not sure how effective that strategy would be in other similar situations. The speaker volume could be louder but I could easily understand the commands traveling at 80 mph. I have also tested the system on several routes throughout Southern California and the system performed very well. All of the main features worked as published with a few exceptions noted below. The user interface is very well designed and I was able to operate 80% of the functions without reading the manual. In addition to the 760, I also purchased the Garmin Friction Dashboard Mount which I believe is superior to the glass suction mount provided.

So why did I only give it 4 stars? The one big annoyance for me was that if you directly input the POI name, the search can take a long amount of time (greater than 5 minutes)if it goes outside of your vicinity. This is extremely slow compared to our in-dash GPS system. The touch screen could be more responsive and is not that sensitive especially with the browse map option. The 760 bluetooth pairs consistently and quickly with my Motorola KRZR phone but the receiving and transmitting sound quality is very poor. The FM transmitter is unusable.

I really wanted to like the TomTom 920T especially with the voice recognition, user updates for maps and a long list of customizations. However, the routing engine seems to produce more inconsistent performance than the Garmin and I could not find enough information on their mapping data to understand how accurate it is today. The two main providers of map data are Navteq and Tele Atlas. Garmin and Magellan use Navteq and TomTom uses Tele Atlas. In the past, Navteq has been considered more accurate and complete for North America but Tele Atlas has made significant updates in recent times. Interestingly the 760 uses Garmin's 2008 North American maps but the source data is 18 to 24 months old which shows there is always a large lag in map information. Garmin has been very good at providing updates more frequently than the other manufacturers. My impression is that TomTom is much stronger with the European maps than the NA maps.

Here is a quick rundown of how I view the models:

Magellan Maestro 4250:
Pros: multi point destination routing with optimization, great address and text input system
Cons: questionable routing engine, outdated map data, inconsistent voice recognition, cumbersome POI interface, poor text to speech quality, poor customer support in US

TomTom 920T
Pros: voice recognition, enhanced positioning technology, map share, excellent customization options, multi-destination routing
Cons: questionable routing engine, outdated map data (although this is somewhat offset by map share), no routing optimization, cumbersome user interface

Garmin 760
Pros: routing engine seems very good, multi-destination routing optimization, good POI database, more map updates compared to competition, great user interface
Cons: touch screen is not very sensitive, outdated map data, FM transmitter is useless, expensive

Garmin 680
Pros: most of the same features and functionality as the 760 but with MSN Direct, louder speaker volume than 760, much better value than the 760
Cons: no multipoint destination, older look and feel than the 760

I have only listed a limited set of the pros and cons for each of the different models but these were the areas that stood out the most to me. When it's all said and done, I probably would have been happy with any of these models but if you can afford the 760 and routing directions in North America is your most important requirement then I would highly recommend the 760.

I have seen questions about whether the 760 comes with the SiRF Star III chip and the unit that I just purchased from Amazon did come with that chip. The SiRF is a high performance GPS chipset that can quickly acquire and maintain a lock onto satellite signals for position information. It is considered the chipset of choice for the higher end mobile GPS devices. All of the models I have described above have the SiRF chipset. I also have seen questions about how quickly the 760 can lock onto satellites. I updated my system firmware to version 2.6 and the satellite acquisition time is lightning fast. I have found in outside environments, my 760 can consistently acquire a signal in under 10 seconds even first thing in the morning.

There are a couple of other useful features that are not described in the instruction manual. If you hold down on the signal strength bar in the top left corner, you will get the satellite acquisition screen which shows the position accuracy. If you hold down on the battery indicator for a few seconds, this will allow access to the diagnostic screen which is where you can identify the GPS chipset among other information.

Thanks:
http://astore.amazon.com/cheap.garmin.760-20

Garmin Nuvi 765T : An Excellent GPS device



This Nuvi does several things very well, and I've yet to discover any serious shortcomings. My thoughts:

Navigation: Excellent, as is typical with Garmin units. On a couple of occasions the voice (right now I'm using Australian Karen) told me my destination was on the wrong side of the street.

Map: The map is clear, the refresh rate is fast, and all of the right information is provided on-screen, including details for upcoming turns and junctions, speed limit, and traffic alerts. It's annoying that I can't choose to switch the display of my current speed to some other piece of info. I already have a speedometer. The 3D buildings feature seems pretty gimmicky, and is implemented sporadically, even in downtown Boston. When there is coverage, most buildings are monochromatic blocks, and not the photo-realistic buildings seen in screenshots.

Lane Assist: This feature has been spot-on so far. It's nice driving in a new area and not getting flustered about being in the wrong lane. I have yet to see the full-screen 3D Lane Assist Junction View shown in the many 765t screenshots -- however, I've done very little highway driving, and I believe this screen requires that the user press the top-left (upcoming turn icon).

>>>>>UPDATE: After some highway driving, it turns out that the full-screen 3D Lane Assist Junction View shows up automatically before potentially tricky highway junctions. Very nice.

Traffic: As far as I know, I have not been re-routed because of traffic. However, it's very easy to bring up a list of major roads and their current traffic conditions, and to avoid them at will. The pop-up advertising associated with the "free" traffic is pretty subtle, and never distracting.

Bluetooth: I'm impressed with this feature so far. It mated with my phone (old Motorola RAZR V3) easily, importing all of my contacts in the process. The ability to instantly dial any point of interest (e.g., to check on store hours) is brilliant. The volume from the speaker is reasonably loud. I also tried sending the audio to my car stereo using an audio cable, and the output seemed a bit low (I had to turn my car stereo way up). I have not yet tried sending the audio to my car stereo using the FM transmitter. I called my voicemail, and the built-in microphone picks up my voice reasonably well with the engine running. I'm not sure how well it would work with highway speeds. I'm told that the cheap Garmin microphone (which plugs into the cradle, not the unit) improves voice quality.

>>>>>UPDATE: This is true -- the microphone is an improvement, though it adds yet another long cord to your long cord collection. Also, I've tried the FM transmitter. It works, albeit with a certain amount of static. I imagine this feature would intolerable if you are driving a long way.

Other features: I haven't used the SD card slot for anything. I haven't tried the photo viewer or the mp3 player, and I probably won't.

Build Quality: Seems solid. The unit has a certain heft to it, and it's covered in a soft, rubbery coating. I've also dropped it already (because I'm an idiot) -- still working beautifully.

Suggested improvements: Garmin doesn't make it easy to look up the actual coordinates (latitude and longitude) for favorites or points of interest. This information should be available at the press of a button.

Needless to say, I'm pleased with my purchase. The 756t is not cheap right now, and if you can live without the new features, you might be better off with an older unit. That said, if you're looking for a gps device with all of the latest features and compatibility, this seems to be a solid pick.

Thanks:
http://astore.amazon.com/garmin.nuvi.765t.gps.cheap-20