Garmin Oregon 400i 3-Inch Touchscreen Handheld GPS Unit with U.S. Inland Lakes and a Worldwide Basemap handheld GPS navigator for use outdoors, in a car, or on a boat 3-inch LCD touchscreen display (240 x 400 pixels) with built-in picture viewer WAAS (Wide Area Augmentation System) capability improves GPS accuracy to within 3 meters pre-loaded map of U.S. inland lakes and navigable rivers