You’ve surely seen them when you’ve gone to the emergency room or were admitted to the hospital or even just had an outpatient procedure: a plastic clamp that the nurse attached to your index finger ...

We don't know why you would need to measure your blood oxygen saturation levels, but if you do the Oxywatch ($140) promises to be the most convenient and accurate method around. You just place it on ...

Proof-of-principle study: Researchers have demonstrated that smartphones are capable of detecting blood-oxygen saturation levels down to 70%. Subjects place their finger over the camera and flash of a ...