A Wired writer wanted to test just how effectively the Spot GPS Messenger could save his life. So, in the dark of night, he walked for 8 aimless hours into Tahoe National Forest. Then he pressed Spot's emergency button.
The Survivorman approved SPOT GPS tracking device is now 30% smaller and lighter than the much beloved original version. More importantly, the chipset and the antenna have been upgraded to improve performance.