GPS navigational systems avail the NAVSTAR satellites that were originally created for military purposes. GPS units end these satellites to calculate site and hurry of cars and to coin turn-by-turn instructions for drivers. When comparing GPS units, you must dream of not equal the value on the other hand besides the features that the GPS offers.
Instructions
1. Compare if the unit is installed in the vehivle or if it is a portable operation.3. Compare the maps that are available on the GPS systems. GPS systems that have all of North America or other continents too will be more expensive, but if you travel to Europe, it might be worth it to purchase a GPS that supports European maps.
Compare screen sizes. Some installed GPS systems have screens of seven inches or larger, while portable GPS units have about half that. Moreover, check out how easy the screen is to read in both daylight and in darkness.
Installed systems Testament normally retain larger screens, in a superior way compact drives to store amassed maps, and play movies and audio CDs however can worth $1,000 and up. Moreover, because the GPS action is thing of the motorcar, you close not accept to charge it or care approximately a battery running out, as you have to do with a portable device. Portable devices, however, can be moved from car to car and can cost less than half the price of an installed system.2.
4. Compare audio instructions. Most GPS are able to verbalize instructions like "Turn left in 0.8 miles." Some GPS units are able to use text-to-speech technology to not only give directions but also to pronounce street names when giving directions like "Turn left onto Jefferson Street in 0.8 miles," which can help the driver keep his or her eyes on the road and not have to Stare at the GPS for road names.
5. Compare additional features such as traffic alerts, weather forecasts, gas prices and movie times. These additional features will add to the price, but if you use them often it can be worth the initial cost.
6. Go to Pricegrabber.com once you've decided which model you want to purchase. Type in the name of the model in the "Search For" bar. For instance, if you've decided you want the Garmin nuvi 265 WT, search for it and compare the prices. In July 2009, prices ranged from $218.14 to $298.00. Also check sites like Amazon.com because Pricegrabber.com does not always check every store, and as of July 2009, Amazon.com was cheaper, offering the same product for $213.28.
