Features, Specs and Customer reviews for Garmin nuvi 2597LMT 5-Inch Bluetooth Portable Vehicle GPS with Lifetime Maps and Traffic. The nuvi 2597lmt is a gps available from Garmin that comes with dual-orientation capabilities, for use horizontally or vertically. It gives that premium feel and looks more attractive and interesting than other GPS products. This gps makes it easy to find addresses and millions of POIs such as businesses, stores, restaurants and other destinations. If you don’t need the extra features, the 2597lmt is the GPS device to get.