What company puts out the most accurate GPS? I have a part time delivery job, and feel one would be useful.?

I have a map book, but think the GPS would be good. Are some brands more "accurate" than others, as I need more the door to door directions.





Thanks!
What company puts out the most accurate GPS? I have a part time delivery job, and feel one would be useful.?
They all use the same satellites and the same equation for making up the time difference when tracking you. So really any of the major brands will do. I have a cheap Gamin that has been great. It was only like $100.
Reply:As the other answer says, they use the same satellites and any brand will be as accurate as any other. This is dependent on their maps, of course. The maps have to coincide with the GPS data. It depends on how accurately they have the streets and alleys positioned.


The more important question is how sensitive is the GPS. I've known GPS receivers that lose the signal faster than others. I've also got a Garmin and it received signals where another brand couldn't. They're still all dependent on a good view of the sky. If you have a lot of trees, tall buildings, even a heavy cloud cover, the receiver may not be able to get the signal and display your position.