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
Measure Blood Oxygen Level and Heart Rate on Galaxy Watch | Samsung Developers
Galaxy Note 4: Blood Oxygen Saturation measurement | Samsung India
Samsung Health SPO2 measurement is back. - Samsung Members
Amazon.com: Samsung Galaxy Watch 3 Stainless Steel (41mm) SpO2 Oxygen, Sleep, GPS Sports + Fitness Smartwatch, IP68 Water Resistant, International Model - No NFC SM-R850 (Fast Charge Cube Bundle, Mystic Bronze) : Electronics