The Navigon 2100 Max features a larger 4.3-inch touch screen and adds lane assistance and safety tools. The portable navigation device also offers text-to-speech functionality

The Navigon 2100 Max's user interface isn't as intuitive as the competition. General performance can be sluggish at times

The new Navigon 2100 Max features some nice additions, including a larger screen and advanced lane guidance, but the portable navigation device is still tripped up by sluggish performance.

The Garmin Nuvi 500 is a multiuse GPS that can be used in the car, on foot, on a bike or a boat. It comes loaded with topographic maps and features a waterproof casing

The Nuvi 500 lacks text-to-speech functionality. Satellite acquisition time was a bit slow. A USB cable is not included in the box, and marine maps are extra

The Garmin Nuvi 500 is a satisfactory multimode GPS, but serious boaters and outdoor enthusiasts should consider dedicated devices.

The capacity of the battery varies by GPS model, but typically, you can get anywhere from 2 to 5 hours of use on a single charge, so provided that you're not going on any long road trips, it's possible to use one of these PNDs in your car that does ...

Additionally, the product lets drivers pinpoint the location of the accident by logging the GPS coordinates for later retrieval using an included software package. It looks like the device only packs a forward-facing camera, so you're still on your ...

The Nokia 500 Auto Navigation system offers text-to-speech functionality and traffic information capabilities. The GPS device also features a 4.3-inch touch screen, integrated Bluetooth, and accurate directions

The Nokia 500's user interface and navigation software isn't as intuitive or easy to use as competing products from TomTom and Garmin. It's also expensive

The Nokia 500 Auto Navigation improves over its predecessor and offers a decent set of features and performance, but the GPS needs some work in terms of ease of use and interface.

As for routing, Magellan and Garmin offer route optimization, which should give you the most efficient course, but I'd double-check the directions before taking off. I've read that some systems are smarter than others. Unfortunately, TomTom does not ...

The Garmin Nuvi 880 crams in a number of features, including text-to-speech functionality, MSN Direct services, and Bluetooth, into a compact design. The portable navigation system offers the best and most accurate speech recognition capabilities we ...

The Nuvi 880 is expensive, and route calculations can be sluggish

As we've come to expect from the Nuvi line, the Garmin Nuvi 880 offers an impressive feature list and solid performance, but it's the accurate speech recognition that really pushes the Nuvi 880 over the edge and makes it one of the best GPS we've ...

Once you pair the PND with your phone, you'll be able to make and receive calls, and if a point of interest lists a phone number, most GPSes will allow you to dial directly to that business with just a tap of the screen. Some devices, such as the GO ...

The Asus R700t portable navigation system features a slim design and has an integrated traffic receiver. You also get a complimentary subscription to the traffic services, integrated Bluetooth, and 3D building renderings

The R700t doesn't include text-to-speech functionality, route recalculations weren't always efficient, and general performance can be slow at times

For the company's first stab at the GPS market, the Asus R700t is an impressive debut, offering some great navigation features. However, we'd like to see the addition of text-to-speech functionality and smoother performance before completely ...

The TomTom GO 930 offers address entry via voice as well as lane assistance and 3D renderings of complex intersections. The portable navigation system also has optimized route calculation based on historical traffic data ; text-to-speech functionality ...

The voice command feature on the GO 930 isn't the most accurate, and often it's just easier to enter addresses using the onscreen keyboard. The lane guidance feature is only available for major highways and not all roadways. There's also no dashboard ...

If you're looking for a high-end in-car GPS with the latest features, the TomTom GO 930 delivers with accurate directions and new navigation tools like advanced lane guidance and voice address entry.