Why You Shouldn't Trust Your Phone's Blood Oxygen Sensor
by David Murphy on Vitals, shared by David Murphy to from Lifehacker on (#52H18)
There's a belief that you can use your smartphone to accurately measure your SpO2-that's your blood oxygen level. And while it would certainly be handy right now to have easy access to that figure-the same one you get when your doctor sticks your finger in that little clamp during a checkup-I have the sad duty to"