The next iteration in Garmin's tried-and-true eTrex GPS series. The 20x uses the same lightweight, durable, and water-resistant housing, but now features a larger display and more than twice the memory. High-sensitivity GPS receiver with GLONASS support gives access to a huge range of satellites, resulting in faster, more accurate performance in heavy cover areas like canyons or dense forests. A simple, intuitive, and reliable device for geo-caching or replacing your aging map and compass duo. Large high-resolution colour display is readable in high-glare situations. GLONASS supported GPS receiver is fast, accurate, and consistent. Download images to your device with the compatible BirdsEye Satellite imagery interface (subscription required). 3.7 GBs of internal memory. MicroSD slot for even expanded memory. 25 hours of battery life takes you pretty much anywhere. Takes 2 AA batteries.