Study from Stanford shows wearables aren't accurate counting calories

As more and more folks adopt the use of smart wearables for tracking steps, heart rate, sleep, and calories burned, Stanford University performed a study to measure exactly how accurate the data collected from these wearables actually is. The study involved seven different wearables (Apple Watch, Basis Peak, Fitbit Surge, Microsoft Band, Mio Alpha 2, PulseOn, and the Samsung Gear S2) and 60 volunteers of different ages, skin color, and body mass index. The basis of the study is to use medical equipment to measure actual calorie usage by metering the heartrate and carbon dioxide...

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