Caterpillar, which makes monster-size trucks, now has a monster of a phone. Designed for construction workers or anyone working in harsh environments, the Cat S40 promises rugged protection from dust, drops and water. It runs Android Lollipop and comes with a generous-size battery as well. But for its $400 price, the Cat S40 should offer a better camera and more speed.

Design: Built to Last

With a rubberized back and solid-metal chassis, the Cat S40 looks like the phone Bob the Builder would use.
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