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 ...

The use of a medical device called a pulse oximeter, which measures blood oxygen levels, has increased considerably since the start of the COVID-19 pandemic. That’s in part because it’s possible for ...

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 ...