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Lifesense - PPG (photoplethysmography) sensors use a light-based technology to sense the rate of blood flow as controlled by the heart's pumping action.#LifesenseBand2 applies PPG sensor to detect your heart rate during
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Apple Won 39 Patents Today covering an Enhanced PPG Sensor System for Apple Watch, 3D-Haptic Touch & more - Patently Apple
Abstract design overview of wearable smartwatch PPG Sensor Module: The... | Download Scientific Diagram
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Amazfit GTS 3 smartwatch has the BioTracker PPG 3.0 biometric sensor for health monitoring » Gadget Flow
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