Not all tablets are useful in the outdoors. You need a tough tablet to last you a while. The Earl tablet could be just that. Not only it has a rugged design, it can also go for 12 hours on a full charge. The tablet has built-in solar panel to charge with a 6 inch 1024×768-pixel resolution. The tablet has weather sensors and other goodies to get you out of trouble. It will go for $249.