“Cobra’s NAV ONE 4500 and Garmin’s StreetPilot 2720, which each sell for $800 to $1,000, use a more straightforward approach. The traffic info travels along with FM radio broadcasts from Clear Channel stations in 48 of the top 50 markets. An FM antenna and receiver pick it off the air and feed it to the navigation system.”
“I preferred the Cobra, mostly for its big, bright 5-inch screen and its built-in radio receiver. (The Garmin receiver is $200 extra and needs to be installed between your car antenna and radio.) When you encounter traffic, a pop-up on the screen and a voice give you three options: Keep driving, reroute me, or give me a couple of new routes and let me pick one.”
Buy Cobra Nav One 4500 Mobile GPS for only USD 799.99