Measuring your blood oxygen levels regularly allows you to assess your overall health, so that you take early action if required. As an indicator of your overall wellness, it helps you understand the amount of oxygen your body absorbs on a daily basis. Your blood oxygen level is a primary 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. This function allows you to take on-demand readings of your blood oxygen as well as background readings, day and night.

The SpO2 sensor comprises of an LED and two photobodies embedded on the back of the watch. The infrared LED penetrates deep into your skin, shining light on your blood vessels when you have it strapped on. The photobodies then measure the quantity of the reflected light and calculate the total amount of blood oxygen in your body.