According to my research the auto GPS navigation is very accurate. This is an article you may find interesting http://automobilegpsnavigation.co.cc/?tag=accuracy
Auto GPS navigation is not very expensive. Usually you can go by your local Walmart and purchase a GPS system for about $150.00. If you are looking for something more high end, it may be a little expensive but totally worth it in the end.
Marine navigation systems are just as accurate as any other navigation system. There will possibly be some inconsistencies here and there, but that is always to be expected with GPS systems.
It depends where and how often the device downloads the GPS information. Streets and roads are always changing, so the GPS device must download updates to be accurate.
WHERE DO I BUY GPS NAVIGATION FOR AUTO'S ETC FROMA SUPPLIER IN ORDER TO SELL AT THE RETAIL STORE?
An auto GPS navigation system is a good choice for anyone who is traveling long distances, or anyone who is consistently and extensively traveling to places they are unfamiliar with. Also great if and or when you get lost!
Now the GPS is electronic and has maps, phones, and it speaks to you.
Satellite Navigation is just as accurate as GPS, having a 1-10 meter buffer zone. Both use a similar system, having satellites in orbit to triangulate a position. Satellite Navigation, better known as GLONASS, is used mostly by the Soviet Union while GPS, is use worldwide and the widest used system.
Global Positioning System (GPS) uses the signals from geosynchronous satellites to provide accurate position information for navigation. As such utilizing GPS for navigation amounts to utilizing satellite navigation ("sat nav"). Note that while GPS, which was developed by the US government is the most widely used satellite navigation system, Russia also has the Global Navigation Satellite System (GLONASS) deployed which can provide essentially the same satellite navigation capabilities - and can be used in along with GPS to get faster and more accurate position information. The EU, Japan, China, and India are also working to deploy a satellite navigation systems.
The Global Positioning System, or GPS, is a network of Satellites used for accurate navigation of ships and aircraft.
As all gps type electronics the connection is not as strong during a storm because of the clouds and the static atmosphere. However, the gps navigation units will still perform well.
The auto GPS can be a real handy item to have when in a hurry to get somewhere. It can warn you of heavy traffic, toll booths and the cost, and tell you the easiest way to get to where you are going.
GPS navigation garmin is a device primarily used for cars to direct people from one place to another. An alternative name is also a sat nav. it is a very accurate device.