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Exploring technical content through the lens of heart.
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Slim Fitness Watches and the Ecosystem Question
A slim fitness watch on a wrist looks the same everywhere in the world. The 1.82-inch AMOLED panel glows the same deep black, the step counter tick...
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What Your Wrist Sensor Actually Sees: How a PPG Sensor in a…
Turn your smartwatch over and press it against a dark surface. You will see flickering green and red lights through t...
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