Apple Watch Series 6 will measure blood oxygen levels

Apple’s new Series 6 watch has some exciting new health features. Thanks to a new health sensor, the Apple Watch Series 6 is able to measure your blood oxygen levels in 15 seconds, the company announced today.

The sensor uses green, red and infrared LEDs, in addition to the four photodiodes on the Apple Watch’s back crystal, to measure the light reflected back from your blood. Using an algorithm built into the Blood Oxygen app, the watch then measures your blood oxygen level between 70% to 100%.  The watch will also record background measurements while you sleep.

A GIF of the Blood Oxygen sensor and app on Apple Watch Series 6.

Source: Apple

Your blood oxygen level measures how much oxygen your red blood cells are carrying. These measurements are especially important for people with chronic conditions like asthma, heart disease and chronic obstructive pulmonary disease. In partnership with healthcare providers, Apple plans to conduct health studies around asthma, heart disease and COVID-19 using this new blood oxygen measurement capability.

Additionally, Watch OS 7 will be able to measure your full range of VO2 max, detect if you’re washing your hands and monitor your sleep.