Garmin eTrex 30

 Garmin's eTrex 30 is a mid-range handheld GPS unit intended for general outdoor uses like hunting, hiking, or nautical navigation. It is the highest model in the 2011 eTrex group of products and it has three main upgrades over the eTrex 20.

It has a barometric altimeter to precisely track the user's topographical location; a 3-axis compass with electronic tilt compensations; and wireless device-to-device sharing of data, with other eTrex 30 or compatible devices. This unit has preloaded basemaps, expandable memory for topographical or nautical maps, as well as a colour display. Like the 10 and 20 models below it, the 30 has improved battery life over older eTrex handhelds, and lasts for about 25 hours of usage.