Summary: Up to military specifications, the durable Kyocera DuraCore runs on Sprint's fast Direct Connect push-to-talk network, but those who prefer a camera and a phone they can dunk in water will want the DuraMax.
Pros: The Kyocera DuraCore is Sprint's third push-to-talk handset on its Direct Connect network. It's certified to military standards for dust, shock, and vibration.
Cons: The DuraCore is simpler than the DuraMax by design, but that doesn't mean we don't miss the camera and expandable memory. Also, it isn't specified for submersion.