What Car? guide to portable sat-nav - Pioneer AVIC S1

Cost £400
For Good Point of Interest function
Against No speed camera warning feature
Verdict Very good, but let down by no camera warning

This compact unit carries mapping for 26 European countries and has Bluetooth capability. There's also a postcode search function but you can enter only the first few digits. The tiny buttons can be awkward, too.

It's easy to search for nearby fuel stops or restaurants, although the range of eateries was limited to major chains. The speed limit and current speed are indicated, but there's no speed camera warning feature and traffic updates are an optional extra.