Garmin DriveSmart 55 & Traffic. For drivers who love new adventures while traveling, the Garmin DriveSmart 55 GPS navigator is the ultimate road trip companion. Featuring simple menus and easy-to-read maps, Garmin DriveSmart 55 lets you view turn-by-turn directions at a glance on a bright 5.5" edge-to-edge touchscreen display. Traffic and map updates are included along with helpful driver alerts to encourage safer driving. Built-in Wi-Fi connectivity for map and software updates without a computer.