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 ...

Let's get the disclaimer out of the way first: I'm not a doctor. Nothing I'm going to tell you is backed by any medical training. You should definitely see your doctor before making any decisions, ...

One of the most important metrics on a Fitbit tracker is the Estimated Oxygen Variation – and now that every tracker is fitted with an SpO2 sensor, everyone can take advantage. Blood oxygen can be ...

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 ...

GE HealthCare is recalling 7559 TruSignal arterial oxygen saturation (SpO2) sensors because of problems that may reduce defibrillation energy, expose patients to unintended voltage, or give inaccurate ...

CNET’s expert staff reviews and rates dozens of new products and services each month, building on more than a quarter century of expertise. The Apple Watch Series 6 feels like it has perfected many of ...