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 ...

In this project, I built a wearable health monitoring tag that you can actually chat with on Telegram. Using a pulse oximeter ...

If you own a Fitbit Charge 3, Ionic, Versa, Versa Lite, or Versa 2, it's time to check the app for a new Estimated Oxygen Variation Graph. The graph will display your blood's oxygen level, using the ...

The bioengineer Takuo Aoyagi died in Tokyo in April, around the same time that people began clamouring to panic buy his 1970s invention, the pulse oximeter. Blood oxygen saturation, which pulse ...

Oxygen is absorbed by a protein in your blood called hemoglobin. When you breathe, your lungs load up blood cells with oxygen, then the pumping of your heart circulates the oxygen-rich blood through ...