30 September 2013 by Shantha Kumari
The most prominent use for a GPS is in cars for navigation. Portability means ability to move from place to place. Several factors should be considered when buying a portable GPS for cars:
Attaching the GPS:
Manufacturers have included the mounting bracket with a suction cup to attach it to either the windshields or to the flat surface of the dashboards. The current car dashboards have designs which are indented or sloped which makes attaching the GPS difficult and easily detachable.
Also attaching the GPS to windshields is against the law in some states. Some of the larger screen sized GPS prevent visibility to some extent and distract the drivers. Portable GPS can also be fixed to air vents. But its problematic as it can cause damage to the vents and prevent airflow to some extent.
Mapping and Navigation:
As they are portable it is best to have the latest updated maps installed regularly. This is done either by the lifetime free map updates or purchasing the maps online from the manufacturers sites. The best portable GPS for cars have the text-to-speech feature for voicing out the street names or locations, or the preinstalled Points of Interest.
Having a clear intuitive voice giving you directions is an added bonus when using the 2D or 3D maps. Usually the built-in speakers are sufficient to relay the directions but some car GPS can do it through the carÃ¢Â?Â?s audio system.
Design and connectivity:
Being portable means lightweight, durable. The design must have at least 4 inch screen for better viewing and large buttons for navigation. Touchscreens make the job easier for entering the destinations and point of interests. There should be USB/SD card connectivity for downloading the online updated maps or for transferring the maps from your PC/phones.
The portable, cheap GPS for cars with basic navigational facilities cost around $100 while the top end models with live traffic updates, internet connectivity etc can be upwards of $500. Depending on the features, the top brand such as Garmin, Magellan, TomTom make the best portable car GPS.