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 ...

Quickly measured without a blood draw, pulse oximetry or SpO2 indicates the estimated oxygen saturation of red blood cells. It is an indirect measure, calculated through a clip-on fingertip device ...

Put simply, SpO2 is a measure of blood oxygen saturation. The more oxygen you have in your blood, the higher your SpO2 levels are going to be. Seeing as our bodies need oxygen to survive, we can ...

There’s a new wearable tech metric in town – and it’s all about blood oxygen. It might sound complicated and a little pointless, but pulse ox can reveal conditions like sleep apnea – and help athletes ...

Maintaining a healthy blood oxygen saturation level, often referred to as SPO2 (or SpO2), is crucial for blood circulation of your body. SPO2 measures the amount of oxygen in your bloodstream, and ...