The recent outbreak of a spreading «popular» virus and the mortality rate among those suffering from oxygen deficiency compelled Apple to include a pulse oximeter— a device that measures the oxygen saturation in the blood — in their latest Apple Watch Series 6.
Blood oxygen level is measured in percentages. If the measurement shows 95%, it means that 95% of hemoglobin is carrying oxygen while 5% is not.
The blood oxygen saturation level (SpO2) is one of the key indicators used to determine whether a patient requires oxygen supplementation through a mask or artificial lung ventilation. A healthy individual typically has a blood oxygen saturation level of 95%. SpO2 levels below 94% raise concerns about an individual's condition, and at 90%, the World Health Organization (WHO) recommends the use of an oxygen mask as the body tissues are not receiving enough oxygen.
