SpareOne Emergency Phone

Never get stuck without a working phone again. The SpareOne Emergency Phone ($60) is a dead-simple GSM cell that draws its power from a single AA battery, meaning that it should be good to go in any situation, assuming you can find a battery — and the cell towers are working. Other features include one-button emergency dialing even without a SIM card, the ability to be geo-located in an emergency, 9 speed dial buttons, and a built-in LED torch light.