How Do You Compare Prices On GPS Navigation Systems?
GPS navigational systems use the NAVSTAR satellites that were originally created for military purposes. GPS units use these satellites to calculate location and speed of cars and to create turn-by-turn directions for drivers. When comparing GPS units, you must consider not just the price but also the features that the GPS offers. Compare whether the unit is installed in the car or whether it is a portable system. Installed systems will usually have larger screens, bigger hard drives to store more maps, and play movies and audio CDs but can cost $1,000 and up. In addition, since the GPS system is part of the car, you do not have to charge it or worry about a battery running out, as you have to do with a portable device. Portable devices, on the other hand, can be moved from car to car and can cost less than half the price of an installed system. Compare screen sizes. Some installed GPS systems have screens of seven inches or larger, while portable GPS units have about half that. In addi
