I started with CNET reviewing laptops in 2009. Now I explore wearable tech, VR/AR, tablets, gaming and future/emerging trends in our changing world. Other obsessions include magic, immersive theater, ...

You have undoubtedly seen the easy-to-use blood-oxygen saturation (SpO 2) sensor that clips onto your finger and near-instantly reports results. The development of this dual-LED based unit, which ...

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 ...