By Henry Butz
It took me a while to understand the different between the Nuvi 500 and the 550. Look no further. Only the base map is different. The 500 comes with the lower 48 states with topographical information while the 550 includes all of North America (Canada and Mexico) and no topographical information. The units are identical otherwise.
First, the good stuff. This GPS is quickly becoming an invaluable tool for long drives. I have been able to enter a street address as well as many restaurants, hospitals, and businesses then just click on “go.” On one trip, it correctly navigated reversing direction on a double-cloverleaf turn. A pleasant voice guides you and alerts you of upcoming turns. Miss the turn and the unit will patiently wait for you to realize your error. Then, after a while it will just recalculate your route automatically. It is also possible to tweak the routes by manually entering points to divert the automatic routing or pressing “detour” on the fly if you find yourself stuck at a railroad crossing. Custom routes can be saved. Waypoints can be sorted by category and new categories can be added. Photographs can be added, although I haven’t done much with this feature. Clicking on the top bar will display the route turn by turn. I found the routing quite intelligent and much prefer this unit over my last human co-pilot (but I hope that she never reads this review). This particular unit has a rechargeable battery and the unit can be mounted on an optional bean bag mount to just throw it on the dash instead of messing with cables. This makes it perfect for rental cars as well. It has four modes for driving, walking, boating, or bicycling.