![Apple Watch tells me my blood oxygen drops during sleep. I highly doubt this is accurate. Getting a sleep study tonight to be sure. : r/AppleWatch Apple Watch tells me my blood oxygen drops during sleep. I highly doubt this is accurate. Getting a sleep study tonight to be sure. : r/AppleWatch](https://i.redd.it/tf4j0fpe44xa1.jpg)
Apple Watch tells me my blood oxygen drops during sleep. I highly doubt this is accurate. Getting a sleep study tonight to be sure. : r/AppleWatch
![Apple Watch's Blood Oxygen Reader Yields Accurate Readings Similar to Medical-Grade Oximeters, Study Finds | Tech Times Apple Watch's Blood Oxygen Reader Yields Accurate Readings Similar to Medical-Grade Oximeters, Study Finds | Tech Times](https://1734811051.rsc.cdn77.org/data/images/full/413879/apple-watchs-blood-oxygen-reader-yields-accurate-readings-similar-to-medical-grade-oximeters-study-finds.jpg)
Apple Watch's Blood Oxygen Reader Yields Accurate Readings Similar to Medical-Grade Oximeters, Study Finds | Tech Times
Investigating the accuracy of blood oxygen saturation measurements in common consumer smartwatches | PLOS Digital Health
![Apple Watch teardown reveals pulse oximeter, suggesting future measurement of blood oxygen - 9to5Mac Apple Watch teardown reveals pulse oximeter, suggesting future measurement of blood oxygen - 9to5Mac](https://9to5mac.com/wp-content/uploads/sites/6/2015/04/pulse-oximeter.jpeg?quality=82&strip=all&w=1000)