GPS or global positioning system is a multipurpose utility used for various applications.  But automotive GPS devices are the types that are widely sought after by the consumers. Certain features are common in all models but when buying a GPS, the shopper should be careful to choose the right equipment to obtain desired results. In a competitive environment the consumers are benefited by the cost advantage. But all cheaper products need not be good also.

There are important aspects to be looked into while shopping for a GPS. Clarity of the images or data on the screen is the most important factor. The size of the screen will be from 4 inches to 7 inches. It is better to watch the demonstration in dealer’s showroom and confirm the clarity. Make sure that the streets are seen clearly without smear. If the images are slightly blurred during the trial, it is not a good sign. While driving, the possibility of distortions will be more than what is noticed during the trial. Three dimensional displays are more effective.

It is equally important that the device should be easy to operate. Clarity of the street names and the audibility of the instructions are to be ensured. The names of the streets should be specific. In certain units, the directions will be given to turn right or left without mentioning the street names. The shopper should insist on the names of the streets to avoid confusion while driving down the busy roads. Vocal instructions should be specific and clear.

Quality of the product and the additional features are to be carefully assessed while buying GPS navigation system. Latest introductions like touch screens and digital picture viewer are more user friendly features. The facility to offer multiple routes is a special feature incorporated in some types of GPS. Always prefer a map based GPS and also look for Bluetooth technology, so that interaction or communication with others during the drive will be easier.

While navigation is accurate with GPS, the movements even in unfamiliar routes become easier. In addition to the constant monitoring, the driver will be provided with useful information about the nearest gas station and other important landmarks like airports and hotels. The system will be able to compute the distance to be travelled to a particular destination and time required at the specified speed. Some Sat Nav systems are having value added accessories like barometers to monitor weather, compass for random use and altimeter to indicate the height of the location above sea level. Dealers selectively offer mobile phones and MP3 players as incentives to the buyers. The shoppers can be benefited from the warranty and free shipping while shopping online. Always take care to choose only reputed dealers who are recognized by the manufacturers.