Your blood oxygen level is a key indicator of your overall wellness. It can help you understand how well your body is absorbing oxygen, and the amount of oxygen delivered to your body. The remarkable new sensor and app in Apple Watch Series 6 allow you to take on-demand readings of your blood oxygen as well as background readings, day and night.

New sensor. New insights. The new blood oxygen sensor is made up of four LED clusters and four photodiodes. Incorporated into the completely redesigned back crystal, this new sensor works in concert with the Blood Oxygen app to determine your blood oxygen level.

Deeply illuminating. Green, red, and infrared LEDs shine light onto the blood vessels in your wrist, and photodiodes measure the amount of light reflected back. Advanced algorithms then calculate the color of your blood, which indicates the amount of oxygen present.

With the ECG app, Apple Watch Series 6 is capable of generating an ECG similar to a single-lead electrocardiogram.It’s a momentous achievement for a wearable device that can provide critical data for doctors and peace of mind for you.

Getting the right amount of sleep is important for good health. The new Sleep app helps you establish a regular bedtime routine and keep track of your sleep trends night after night. So you can set and achieve your personal sleep goals.