Garmin eTrex 10 Handheld GPS WAAS-enable GPS Receiver Save up to 1000 Waypoints Tracks Both GPS and GLONASS Satellites Simultaneously Rugged Waterproof Design Only Garmin could make the eTrex better. The new eTrex 10 retains the core functionality, rugged construction, affordability and long battery life that made eTrex the most dependable GPS device available. We improved the user interface and added a worldwide basemap, paperless geocaching and added support for spine mounting accessories. You’ll recognize the name. You’ll recognize the quality. But the eTrex 10 is an entirely new device – a device that only Garmin could offer.