Heart Rate Sensor - Search Videos

How Does a Smartwatch Know Your Heart Rate & Blood Oxygen?

YouTubeTechBookTrends

How Does a Smartwatch Know Your Heart Rate & Blood Oxygen?

Ever wondered how your smartwatch knows your heart rate and blood oxygen level? 🤯 In this short animation, you'll discover how tiny sensors inside smartwatches use special green and red lights to track blood flow, calculate BPM (heart rate), and estimate SpO₂ (blood oxygen) levels in real time. From Apple Watch to Samsung Galaxy Watch and ...

10 views3 weeks ago

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