The Nuvi 660 is quite similar to the Nuvi 680. The differences are fairly minimal as both feature Bluetooth connectivity, the entertainment package along with other travel tools. The 680 still features the MSN Direct service which is an incredible dynamic information service allowing you to check gas prices, movie times, traffic, and many other things. The 660 does have it’s own trick up its sleeve with integrated FM traffic receiver to receive traffic conditions quite well. Both are excellent models that feature the notable widescreen display as well as many similar features that make both units quite comparable.
The Nuvi 660 is designed for the veteran user who is frequent on the roads that wants navigation, entertainment, and other tools to ultimately better their travel experience within North America.