Best Buys
The Which? Best Buy award is given to
products with high total test scores that perform consistently well in
our rigorous lab tests and excel in all key areas.
Energy Savers
We award the Energy Saver logo to
products that our testing shows are very energy efficient, meaning
they'll cost you less to run.
Don't Buys
The Which? Don't Buy logo alerts you
to the products that performed extremely poorly in one or more key
areas of our tests.
Route accuracy
How good the system is at finding a route and then directing you along it.
Speed of re-routing
How quickly and accurately the sat nav sytem can re-route
Overall ease of use
How easy the sat nav system is to use
Sat nav type
Portbale Hand-held models: can be moved from car to car; Integrated: fixed in 1 car; Motorbike: specifically for use on motorbikes; Phones and PDAs: designed with other primary functions, but offering sat nav capability
Size of screen
The diagonal measurement across the screen (in mm). Some devices display information on to your mobile phone so no size can be given.
Launch date
Older models may be harder to track down - but you may find a bargain. Test programmes and key features change over time but we re-evaluate results for older models to make them as comparable as possible with newer models.
Traffic updates
Whether the system can access live traffic updates to help divert you around upcoming jams. You may need to pay a subscription fee and buy extra equipment (eg an aerial, cradle or SD cards), to receive this information.
European maps included
Whether the system includes coverage of the continent. If not, a Europe version of the same model may be available. If not, additional maps can sometimes be purchased separately.
Price
We check prices every month and for Best Buys we give the cheapest widely available high-street price we can find. If we can't find the product available on the high-street, we give the cheapest widely available on-line price. For these reasons, the price you see here may differ from the cheapest price you see on Which? Shopping, where you will find online prices that are updated daily. Prices for products that aren't Best Buys are a guide to what you should expect to pay. Prices quoted for Phone Applications are the guide price for the application plus any accessories required to run them and not the phone. We advise you check with the provider for the latest deal.
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