The good: The Garmin Nuvi 3790T is one of the thinnest and lightest portable navigators we've tested; it's the best looking, too. Voice Command is truly hands-free and can be activated merely by speaking to the Nuvi. Bluetooth calling also helps drivers keep their hands on the wheel. Traffic data is free.
The bad: The glossy screen tends to create a good deal of glare when used in direct sunlight. Traffic data cannot be accessed while using the device in the hand.
The bottom line: The Garmin Nuvi 3790T is an exceptional portable navigation device with just the right blend of form and function.