One of the most unique devices seen at Mobile World Congress mixes the 21st century with the 19th. It's got the design of a pocket watch but the screen and internals of a smartphone. The device runs on Firefox OS, has a wood back plate, and a camera that can be controlled with the flick of a wrist. It's certainly not going to be for everyone, but the Runcible is one part smartwatch, one part pocket watch, and a total head-turner.
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