They do this by not simply taking you via the most direct route, but by detecting traffic jams and speed cameras to help eliminate wasted time in traffic or accruing fines. The most up-to-date models are sat-navs with live traffic data. Big names such as Garmin and TomTom offer cheap sat-nav options alongside their higher-priced units, so finding the right system for you can be tricky.Īs the name suggests, sat-navs use a combination of satellites and mapping software to determine a car’s position and plan the best route to a chosen destination. There are many free sat-nav apps for smartphones, but they work off your mobile phone data so it may be better to rely on a dedicated sat-nav unit.Īs you might imagine, there’s a wide range of portable sat-nav systems available at various price points – there are even dedicated units for bikers, which we have tested further down the page.
Satellite navigation is now considered a necessity of the modern motorists and if a car doesn't have sat-nav built-in, there’s a very good chance that a portable sat-nav system will be employed by its driver.
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