Apple Watch reportedly has onboard hardware for measuring blood oxygen saturation

iDownload Blog
By Christian ZibregMay 25, 2015, 5:28 pm1.6k ptsHot
Currently, your Apple Watch learns about calories you burn by applying some math magic to your heart rate readings and values obtained from its sensors. The method provides reasonably accurate estimates of resting/active calories. However, even more precise calorie-burning readings could come soon if Apple…

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