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A member asked:
Is a smart watch accurate in taking blood oxygen levels? it said for one night it was between 85-96%. thanks?
2 doctors weighed in across 2 answers
Not all the time. Always verify if any symptoms such as daytime sleepiness might suggest sleep apnea.
Answered 1/5/2023
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It is not as accurate as the conventional pulse oxymeter. You have the most accurate number when your wrist is completely standstill. However, it is not rare that SpO2 dips to 85% during sleep even with conventional pulse oxymeter.
Answered 1/5/2023
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