Deep foliage, nor canyons faze the rugged Garmin eTrex Vista HCX / GPS. Its high-sensitivity receiver holds a GPS signal in the toughest environments. Similar to the Vista Cx, this handheld navigator also has a bright color screen, barometric altimeter, electronic compass, microSD card slot and automatic routing for wherever adventure takes you. The Vista HCx has a built-in electronic compass that provides bearing information even while you're standing still, and its barometric altimeter tracks changes in pressure to pinpoint your precise altitude. You can even use the altimeter to plot barometric pressure over time, which can help you keep an eye on changing weather conditions.