If you have a Satellite Navigation system already built into your car, this article may not be for you. Although its still worth while considering for future purchases.

Small portable systems are the main focus with this guide. Taking into consideration a few key points when spending your hard earned money on a system.

The maps that are in your navigation system will be one of the most important things to consider. Whether you have a 2D or 3D display will depend on how much detail you want and how much you want to spend. Test out the sensitivity required to input details because that will be useful in times of need. Some models will have voice or gesture recognition to get you to your most commonly visitisted places.

If you are using the Sat Nav in your home territories or are you using it abroad. Have your maps as up to date as possible as roads tend to change frequently.  Consider that there may be additional costs involved in a wider array of detailed maps but should you need it know the options are there.

The more you spend the larger the screen, just be mindful of the placement of the Sat Nav when you place it in your car. Sat Nav’s will tend to be highly dependent on car power although you should check the battery life should you need the device to be portable.

Other features that may be of worthy note would be features such as:

• Traffic functions (to automatically avoid accidents and diversions)
• Point Of Interest (local services and attractions in your area)
• Position Plus (In some areas particularly built up urban areas there may be signal problems. This feature allows the route to continue to be calculated).

Ultimately you should choose the model that is appropriate to your lifestyle and price range.