One of the most important metrics on a Fitbit tracker is the Estimated Oxygen Variation – and now that every tracker is fitted with an SpO2 sensor, everyone can take advantage. Blood oxygen can ...

The oxygen and carbon dioxide levels in a mask are constantly changing as humans breathe frequently and quickly, about 12 to 25 breaths per minute when at rest.

A new flexible sensor can map blood-oxygen levels over large areas of skin, tissue and organs, potentially giving doctors a new way to monitor healing wounds in real time. The sensor is made of ...

First author Yasser Khan holds the sensor, which is made of an alternating array of printed LEDs and photodetectors that can detect blood-oxygen levels anywhere in the body. (Courtesy: Yasser Khan, ...

The new Apple Watch Series 6 has a sensor that measures the level of oxygen in your blood. Photograph: Apple All products featured on WIRED are independently selected by our editors.

The smartwatch's Blood Oxygen app lets you measure the oxygen level of your blood on-demand. It's been MIA for more than a ...

The oxygen sensor is arguably the most important. Every sensor’s readings are based on normal oxygen levels in air. If the oxygen sensor is faulty, all of the other sensor readings become suspect.

Researchers have developed a low-cost sensor from carbon nanotubes that can selectively and reliably measure minute quantities of oxygen in gas mixtures under light. The detector could be used in ...