Garmin International has rolled out Dakota 10 and Dakota 20 handheld waterproof GPS navigators.

Garmin claims that the new devices can acquire and maintain satellite reception through HotFix GPS receiver which automatically calculates and stores satellite information to calculate a position.

Garmin said that the new Dakota devices, based on its Oregon series interface, come with 2.6-inch colour touchscreen display. Dakota reportedly works up to 20 hours on two AA batteries and can connect to PC or Mac via USB connection.

In addition, Dakota 20 also features a 3-axis compass, barometric altimeter, a microSD card slot for mapping, memory storage and wireless unit-to-unit connectivity for sharing waypoints, tracks, routes.

The new Dakota devices come preloaded with a worldwide basemap and are compatible with Garmin City Navigator NT for directions on city streets, Blue Chart g2 for marine charting, and TOPO U.S. 24K and 100K map software for terrain detail.