The Garmin Nuvi 350 gets the best reviews for the most accurate directions, and testers say the Garmin Nüvi maintains a signal lock even on cloudy days and around obstructions like skyscrapers. Navigation on the 3.5-inch touchscreen is easy and intuitive. The 2GB flash memory leaves a full gigabyte available for photos, audio books or MP3 files, and you can listen to music or a book while navigating. You can plan multi-leg trips, and the Garmin GPS includes text-to-speech capability, so audio directions include actual street names instead of merely “turn left.”

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