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Smartwatch Authority on X: "Are you worried about your health if there any effects from the Sensors,the green light and the cellular signal from your fitness trackers/smartwatch? #sensors #health #smartwatch #fitness #AppleWatch #
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The green light of my heart rate monitor on my watch gave my wrist a tan. : r/mildlyinteresting
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Just found out that the heart rate sensor has more then just the red LED,it has blue and green too,found out in the test menu : r/GalaxyNote9
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What Does the Apple Watch Green Light Mean? (watchOS 10)
Some heart-rate monitors give less reliable readings for people of colour
