![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
![Why Apple Didn't Need FDA Approval for the Blood Oxygen Tracking Feature in the Apple Watch Series 6 - MacRumors Why Apple Didn't Need FDA Approval for the Blood Oxygen Tracking Feature in the Apple Watch Series 6 - MacRumors](https://images.macrumors.com/t/8cJTvbq-ts5avcf5KYnKwr8ZuVc=/3486x/article-new/2020/09/1blood-oxygen-app.jpg)
Why Apple Didn't Need FDA Approval for the Blood Oxygen Tracking Feature in the Apple Watch Series 6 - MacRumors
![Lawsuit alleges Apple Watch's blood oxygen sensor 'racially biased'; accuracy problems reported industry-wide - ABC News Lawsuit alleges Apple Watch's blood oxygen sensor 'racially biased'; accuracy problems reported industry-wide - ABC News](https://s.abcnews.com/images/US/oximeter-1-gty-er-221229_1672337552625_hpMain_16x9_1600.jpg)
Lawsuit alleges Apple Watch's blood oxygen sensor 'racially biased'; accuracy problems reported industry-wide - ABC News
![Comparison of SpO2 and heart rate values on Apple Watch and conventional commercial oximeters devices in patients with lung disease | Scientific Reports Comparison of SpO2 and heart rate values on Apple Watch and conventional commercial oximeters devices in patients with lung disease | Scientific Reports](https://media.springernature.com/full/springer-static/image/art%3A10.1038%2Fs41598-021-98453-3/MediaObjects/41598_2021_98453_Fig1_HTML.png)