How does heart and sleep monitoring work

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I recently purchased a Samsung gear and I heard that the newest iteration have integrated heart rate monitors and upgraded sleep monitoring. Having read reviews online, I saw that heart rate monitors on mobile phones are not very accurate. Is that true? How can a watch monitor my sleep, what sensor does that?

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Answered By 0 points N/A #190452

How does heart and sleep monitoring work

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Fitness is the focus of many new upcoming gadgets. The application store is populated with a lot of fitness and health related apps. These apps tell you about your heart rate using just the front/rear camera. They promise to calculate an accurate heart rate by just placing the subject’s finger on the camera lens. They ask the subject to breathe normally and to stay still as this might increase the heart rate. Not all the apps gives you the accurate result. 

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