Featuring high-contrast display with 100x64 pixels resolution, the Geko 101 GPS has a sleek design with simple operations. This Garmin hiking GPS has one-touch waypoint marking that makes it easier to use. With the 250-waypoint storage capacity, this Garmin GPS receiver shows you accurate directions to your destination. The Geko 101 works continuously for about 12 hours as it uses 2 AAA batteries. The five buttons at the front of this Garmin hiking GPS lets you operate it with ease. You do not have to mark the waypoints while returning along a traveled path or route, thanks to this Garmin GPS receiver's TracBack feature. When submerged in water up to one meter, the Geko 101 remains undamaged for about 30 minutes.