A healthy blood oxygen level is 95% to 100% on a pulse oximeter (SpO2) or 75 to 100 mm Hg on an arterial blood gas test. A reading below 95% is considered low and may warrant medical attention. Your ...

is a senior reporter and author of the Optimizer newsletter. She has more than 13 years of experience reporting on wearables, health tech, and more. Before coming to The Verge, she worked for Gizmodo ...

Your fitness tracker is capable of monitoring all kinds of data. The problem is keeping track of what it all means. SpO2 is just one example of a lesser-understood metric that can provide insight into ...

If your smartwatch is capable of measuring your SpO2, you may be wondering what that is and why it’s important. This article explains what you need to know. When you’re considering what smartwatch or ...

When Fitbit launched the Charge 4 fitness band, one of the features we found the most interesting was its ability to estimate users' blood oxygen saturation levels through its SpO2 monitor. Users ...

Ahead of the launch of its latest hardware, Fitibit is giving Ionic and Versa owners a handy new watch face. Available now, the Fitbit SpO2 Signature clock face helps you keep an eye on your blood ...