Garmin has just announced its newest outdoor handheld GPS units, the Oregon 550 and 550t. , The new units incorporate a 3-inch color touch screen with a high-sensitivity GPS chipset into a rugged waterproof casing that should be able to withstand most outdoor environments.

In addition to being a GPS unit, the Oregon 550/550t will also incorporate a 3.2-MP autofocus digital camera that will allow the user to take and save photographs along the way. The Oregon 550/550t will also automatically geotag the location of where each photo was taken. The unit also has a built in a microSD card slot additional removable storage capacity.

The unit also features a built-in three-axis electronic compass with tilt-compensation, so it doesn't rely on motion to know which way you're pointed. A barometric altimeter helps keep track of the altitude and certain weather conditions. According to Garmin, you can also wirelessly share routes, tracks, waypoints, and geocaches with other select Garmin devices.

The Oregon 550t is available now and comes preloaded with detailed U.S. 100K topographic mapping for $599.99. The 550 forgoes topographic data for the lower price of $499.99.