Garmin Nuvi 57LM GPS Navigator System with Spoken Turn-By-Turn Directions,5 inch display, Lifetime Map Updates, Direct Access, and Speed Limit Displays With bright 5” dual-orientation displays, spoken turn-by-turn directions and innovative features, the value-priced nüvi Essential Series are easy-to-use, dedicated GPS navigators that do not rely on cellular signals and are unaffected by cellular dead zones. nüvi arrives preloaded with detailed maps; select models offer free lifetime map updates1. Spoken Garmin Real Directions guide like a friend, using landmarks and traffic lights. Foursquare data adds millions more points of interest, so you can discover new and popular restaurants, shops, services and more in your area. Direct Access simplifies navigating to select complex destinations, like malls and airports. Lane assist with junction view helps you navigate interchanges with ease. nüvi displays current street, speed, speed limit and arrival time, and cautions with school zone alerts that you see and hear.