Project Ara has blood oxygen sensor in the works

Project Ara is cool, because the ability to alter your smartphone specs piece-by-piece is attractive. Though we’ve not quite thought about what Ara could be beyond a smartphone — partly because it barely starts up right now — the use-cases for the handheld are nearly endless. At Engadget’s Engage conference, Project Ara chief Paul Eremenko displayed a cool new feature for the device, which could take it well beyond your pocket and into the healthcare field.

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