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How reliable is the SPo2 readings on the Galaxy Watch 4. I'm surprised to see it this low. Can cold environments cause stuff like this? : r/GalaxyWatch
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Samsung Galaxy Watch 4 44mm R870 1.4'' Super Amoled Smart Watch Spo2 Blood Oxygen Measure 361mah Battery Gps Heart Rate Sensor - Smart Watches - AliExpress
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Samsung launches Health Monitor app in SG, bringing SpO2 tracking to Galaxy Watch3 (updated) - HardwareZone.com.sg
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Samsung Galaxy Watch 4 Study Shows its SpO2 Blood Oxygen Sensor is Impressively Accurate | iTech Post
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