In addition to being rugged and waterproof, the newest G'zOne Commando also has a dual-core processor and 4G LTE.
Casio G'zOne Commando 4G LTE Review
Review: Casio G'zOne Commando 4G LTE an Excellent, Rugged Droid, Featured News Story
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Casio G'zOne Commando 4G LTE Review