Fairphone 2, $562

fairphone disassembled b

Fairphone wants to reduce the number of "blood gadgets" in the market. To do that, it has designed a modular smartphone with some conflict-free minerals. It produces the phone in factories that commit to treating their workers fairly. And it has found a way reduce the amount of hazardous waste their phones produce when they're discarded.

First published December 22, 2015: 2:55 PM ET

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