It's no longer news that the Samsung S5 is an awesome device from Samsung. However, did you know it is a heart-rate sensor? Yes, this feature is built into the phone next to the camera flash, the sensor can read a person's heart rate when he holds his finger up to it for a few seconds. The technology used isn't exactly new, but it's the first time we get to see it in a smartphone. It works by shining the phone's LED light on your fingertip, letting the sensor detect the blood flow beneath the skin. Amazing isn't it? Leave your comments.
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