Apple's new Apple Watch Series 6 goes all-in on health care, including a new feature to measure blood oxygen level -- a vital sign that's been helpful monitoring COVID-19, among other things.

There is a simple device that can detect this drop in blood-oxygen well before you start getting out of breath.

It’s not a blood pressure measurement, which would be impossible to do without additional hardware, instead Apple is adding the ability to determine the oxygen saturation of the blood.

Some doctors think pulse oximeters, which measure blood oxygen levels, are useful ways for COVID-19 patients to monitor symptoms. They’re sold out at major retailers, so people may be turning to ...

“For decades, there have been reports that such devices were significantly less accurate in measuring blood oxygen levels based on skin color,” the lawsuit reads.

Blood oxygen monitors said that hospitalized Asian, Black, and Hispanic COVID-19 patients had higher blood oxygen levels than they actually did, according to a new study. Oxygen levels are an ...