Rugged phones seem to be all the rage these days, and with Samsung, Sony, and others releasing high-end devices with allegedly lifeproof qualities, it's hard to know whose rectangular slab really is the toughest. In reading about devices like the Galaxy S4 Active, Xperia ZR, and Casio G'Zone Commando LTE, you've probably seen some ruggedness "ratings" tossed around. Sometimes, these rating come with a bit of information (eg., waterproof to 1 meter up to 30 minutes), but rarely are the ratings explained in a particularly satisfying way.

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