The Garmin nuvi 57LM Advanced GPS Car Navigation System comes preloaded with detailed maps of lower 49 states. It offers free lifetime map updates, so your routes reflect the most up-to-date maps, POIs, and navigation information. Garmin's POI database includes accurate, relevant information sourced from Foursquare. The device's 5" touchscreen LCD display can be used either horizontally or vertically.
The nuvi 57LM is a dedicated automotive navigation system that does not rely on cellular signals. Other useful features include spoken turn-by-turn directions that guide you using recognizable landmarks, buildings, and traffic lights, rather than hard-to-see or non-existent street signs. The nuvi 57LM uses a rechargeable lithium-ion battery.