The blood oxygen sensor featured in Apple Watch Series 6 and 7 is “not intended for medical use,” Apple says. That seems odd, considering that low blood oxygen is a serious medical condition. If the ...

A healthy blood oxygen level is 75–100 mm Hg, or 95–100%. Low blood oxygen levels, known as hypoxemia, may be a cause for concern. Your blood oxygen level is a measure of how much oxygen your red ...

A new sensor could soon allow hospital patients' blood oxygen levels to be checked via their breath. The technology is claimed to be more reliable and less painful than existing traditional methods.

Sarah Mitroff has worn many hats at CNET, including Senior Mobile Editor and Managing Editor of Health and Wellness. Currently, she is a freelance editor. Throughout her career, she's written about ...