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How does Smartwatch calculates the Blood Oxygen Level (SPO2) in Human Body ? | Engineering Semester - YouTube
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JCM | Free Full-Text | Assessment of Non-Invasive Measurements of Oxygen Saturation and Heart Rate with an Apple Smartwatch: Comparison with a Standard Pulse Oximeter
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Should You Trust the SpO2 Monitor on Your Smartwatch/Smart Band, or Buy a New Oximeter Instead? - MySmartPrice
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