Garmin Geko 301 Handheld GPS Receiver

With its sturdy, dark-gray case, the Geko 301 packs an amazing amount of functions into its slim frame. It has all the features of the Geko 201, plus an electronic compass and a barometric altimeter. The compass provides bearing information while you're standing still, and the altimeter determines your precise altitude and provides a 12-hour pressure-trend tool for gauging changing weather conditions.