How accurate are health recordings when wearing the watch on the inside of wrist

My sleeping SpO2 numbers appear rather low. I am wondering if wearing my Apple Watch 7 on the inside of my wrist is taking correct measurements or if my nighttime oxygen levels are low. Any ideas?

iPhone 4s, iOS 9

Posted on May 7, 2024 8:18 AM

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How accurate are health recordings when wearing the watch on the inside of wrist

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