GARIM GPS EXTREX 30.
Smartphones with in-built GPS can do the trick as well. Just not as helpfully as a professional GPS handheld device. The Garims GPS extrex30 might not be what the army recommends for its elite combat units operating inside enemy lines but the lightweight direction finder can get you out of a tight spot as long as you know how to operate it.
Evolved out of the tried and tested Garim handheld GPS line, this big brother of the Garim extrex 10 and Garim extrex 20 comes with a considerable 1.7 GB memory for maps and imagery; a sunlight readable screen; and is the first of its kind to be endowed with a high sensitive receiver that picks signals from the Russian GPS system GLONASS. Users also have the option of combining both GPS and GLONASS.
Other notable features include paperless Geocaching, wireless data transfer, a 3 axis electronic compass, a barometric altimeter, photo navigation, the ability to add extra maps and routes, and not to forget a 25 hours battery life.
Size: 3.5 inches. Weight: 141 g. Dimensions: 3.3 x 10.2 x 5.3 cm. Batteries: 2 AA batteries. Features: 1.7 GB memory for maps and imagery, a sunlight readable screen, GPS and GLONASS, 3-axis compass and barometric altimeter, Worldwide basemap.