Unlike a traditional GPS, which requires movement to show a heading, the built-in electronic compass will give heading while you are standing still. The barometric altimeter provides extremely accurate elevation and pressure information, which could assist in identifying weather trends and best fishing opportunities. Other features include: Waterproof shell to IPX7 specifications, 12 parallel channel GPS receiver, which is differential ready for greater accuracy, 500 waypoints with name, elevation and graphic symbols, trip and speed log, automatic track and elevation log, converts TD's, and is Electro-luminescent backlit for night time use. Runs on 2 AA batteries for about 22 hours (not included). Dimensions; 4.4"H x 2"W x 1.2"D. Palm-size, lightweight, and waterproof, Garmin's eTrex Summit is a 12-channel handheld global positioning satellite (GPS) receiver. The Summit's easy-to-use menu lets you create and view waypoints, save and view track logs, calibrate the compass and altimeter, access setup features, and more. Its trip and elevation computers calculate a range of data, including direction of movement; total and average ascent and descent; current, average and maximum speeds; trip odometer; and much more. Map page. View larger. Mark waypoint. View larger. The Garmin eTrex Summit is a simple, compact GPS device. View larger. Besides appreciating its small size, boaters and outdoorsmen will also be happy with the eTrex's unique button layout design. All the buttons are located on either side of the unit. The benefits of this design are two-fold. First, the eTrex is a breeze to operate with just one hand, and, second, with the buttons on both sides of the unit the bulk of the front of the device is dedicated to the large LCD display with backlight. The eTrex is so simple, it only sports five buttons--Page, Power, Up, Down, and Enter. Garmin also designed this tiny GPS to be completely waterproof so it can handle an accidental splash or dunk and continue to perform. Behind the waterproof protection, you'll find the proven performance of a 12-parallel-channel GPS receiver, which will run for up to 16 hours on just two AA batteries. The antenna is internal, and the external power and data connector are protected as well. In addition to determining your location, the eTrex creates, names, and saves a location as an electronic waypoint in its memory--with room for up to 500 individual waypoints. This allows you to navigate back to a point any time you want, from any location--or, with Garmin's TracBack feature, you can reverse your track log and navigate your way back home. And once you start moving, the GPS provides other data, like speed, direction of movement, time and distance to destination, and more. In addition to these basic features, the eTrex provides one more critical benefit: peace of mind. With GPS, you know where you are, where you've been, and where you are going. And since you always know your way back home, you can concentrate on enjoying yourself outdoors, on the water, or wherever your travels may take you. What's in the Box eTrex Summit GPS receiver, wrist strap, user's guide, and quick-reference guide.

Compatible with optional Garmin MapSource software for downloading trip and waypoint data (not map compatible). Waterproof case; adjustable, backlit LCD; battery-save feature. Navigates up to 50 waypoints in sequence with animated graphical interface. Automatic track log with two-way navigation; stores 10 custom tracks. Palm-size global positioning system (GPS) pinpoints location anytime, anywhere--regardless of cloud cover or weather.