Thanks to a team of software engineers at Apple led by Dr. Jeofrey Kibuule — Software Engineer, Health at Apple — the company has a new life-saving feature, reports Face2Face Africa. Apple’s newly-released Apple Watch Series 6 comes with a special feature — a blood oxygen saturation monitor. The new blood oxygen app allows users to measure the oxygen level of their blood-on-demand directly from their wrist, ultimately providing them with insights into their overall wellness, per Apple. For users, the new feature comes right on time with many COVID-19 patients having had low blood oxygen levels. “During a blood oxygen measurement, the back crystal [under the wrist watch] shines red and green LEDs and infrared light onto your wrist,” said Apple in a statement on their website.”Photodiodes then measure the amount of light reflected back. Advanced algorithms use this data to calculate the colour of your blood. The colour determines your blood oxygen level — bright red blood has more...