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Oct 28, 2023, 7:58 pm186 pts
The Verge/cdn.vox-cdn.com/uploads/chorus_asset/file/24016887/STK093_Google_02.jpg)
Illustration: The Verge Typical heart rate monitoring in wearable tech, like smart watches or wireless earbuds, relies at least partially on photoplethysmography (PPG), which uses light pulses to measure blood activity. It works generally well, but it has its limitations. Google scientists wrote in a new…
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