Apple wanted to build a far smarter Watch, but couldn’t find the technology

See the original posting on The Verge

Spend a few minutes on Indiegogo and you’ll come across a series of extraordinarily ambitious wearable devices promising to detect everything from your sleep patterns, to your stress levels, to the number of calories you’ve burned in the past hour. They’ve incited plenty of skepticism and the latest report from the Wall Street Journal shows why: the Apple Watch was initially intended as exactly that sort of multifunctional health-monitoring device, but the sensors available just weren’t good enough. Heart activity, blood pressure, and stress levels were among the things Apple wanted to track with the Watch, however issues of complexity and reliability — such as getting accurate readings on users with hairy arms or dry skin — forced Apple…

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