When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. If you're not familiar with SpO2 tracking, this reading measures your blood oxygen saturation ...

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 ...

Google's smartwatch has caught up to its competitors by activating its SpO2 sensor. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Google ...

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 ...