If you spend a lot of time driving around unfamiliar areas by yourself, the iQue M5 could be a substantial time saver. It is well-built and easy-to-use, but a little pricey.

The TomTom GO 500 adds handsfree capabilities to an already impressive set of GP features.

While Tom Tom does get credit for trying with the Rider, there are some key flaws with this GPS solution that have to be overcome.

The MIO A701 is a jack of all trades device designed to replace your mobile phone, GPS unit and PDA. Sporting a touch screen but no keypad, the versatile A701 also boasts a 1.3 megapixel camera and both MP3 and video players.

The N95 packs in just about every feature under the sun. Most are welcome additions, but there are a few issues that prevent this from being a great smart phone.

HTC's TyTN II is one of the most outstanding smartphones we've ever reviewed. A few minor improvements and this could well have been a five-star product.

A large 3.8' screen and fast processor speed can't compensate for the bulky size and lack of both a touch screen and internal battery on the iCN 635. The hefty price tag also counts against this unit.

The Nokia N95 8GB has taken most of the things we like about the N95 and carefully refined them. While some flaws remain, it is a handsomely crafted device packed with plenty of wonderful features.

The AVN2210p is far from perfect, but it's a nice example of what can be achieved by combining personal navigation and in-car entertainment. It's a very solid unit with a couple of nifty features and the fact that the GPS unit is detachable will be a selling point for many consumers – not to mention its very reasonable asking price.

The zumo 550 is without doubt an excellent option if you need a GPS unit for your motorcycle or scooter.