The S50 adds Bluetooth handsfree and NavPix for a reasonable price. Although there is no camera to take NavPix photos, it's still a useful application.

The ONE 3rd Edition adds an excellent safety feature to an already outstanding unit, though it's a shame battery life hasn't been improved. Regardless, it's definitely great value at this price.

The BlackBerry Curve 8310 adds GPS to an already enticing unit. Its only real drawbacks are the lack of Wi-Fi and 3G connectivity.

For those that don't need 3G or the Pocket Office applications you get with a Windows Mobile 6.0 device then the BlackBerry 8820 is a clear and highly desirable choice.

The upgraded MMP-401B offers text-to-speech technology, an improved user interface and red light, fixed speed camera and school zone warnings. At this price, it's good value.

A large, bulky unit, the MMP-501B offers a great display and plenty of features for its asking price, though there aren't many new additions from the previous model.

The S30 is an ideal GPS unit for those on a budget. The entry level unit combines a stylish design with good maps, a reasonable feature set and a very competitive price.

The 6120 Classic may not be outstanding, but it is stylish, affordable and has a generous features list.

Without a doubt the best GPS unit Mio has ever released, the C520's delightful widescreen display, split-screen technology and text-to-speech navigation makes this one of the best units we've reviewed.

The P1i is packed to the brim with features, and its only real downside is the unconventional keyboard, as well as an interface that will take some time to grasp. If you can get your head around each of them you're left with an excellent device on the whole.

The LN800 offers a larger screen and a light sensor, but we don't think its worth the extra asking price over the LN800. Still, it's a solid unit with a fair list of included features.

The MOTO Q 9h's excellent QWERTY keyboard makes it ideal for heavy emailing. On the whole, this is a competent smart phone that's packaged in a nice design.