How accurate is the Blood Oxygen Saturation measurement in Samsung Galaxy Phones?
SpO₂ is an estimate of arterial oxygen saturation, or SaO₂, which refers to the amount of oxygenated hemoglobin in the blood.Reading your SpO₂ level works the same as reading your heart rate. The phone can now sense your blood oxygen saturation (SpO₂). Your SpO₂ level should generally be above 94 percent. This is measured using the Note 4's sensor module, which is situated below its rear camera.
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