The Apple Watch’s SpO2 sensor that allows wearers to measure their blood oxygen levels was impressive when it first debuted, but it may be even more accurate than initially marketed. According to a ...

is a senior reporter and author of the Optimizer newsletter. She has more than 13 years of experience reporting on wearables, health tech, and more. Before coming to The Verge, she worked for Gizmodo ...

Apple Watch excels in bringing health-intensive features to every user. One of the most notable capabilities that it can do is to measure your blood oxygen levels through its SpO2 sensor. Did you know ...