My Apple Watch oxygen app is usually 92 to 100 during sleep, at one tap it read 78 which it has never done before during sleep and wondered if anyone has ever experienced that. My battery was very low and I took it right after I seen the l

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Kyson1955 Author

Level 1

4 points

My Apple Watch oxygen app is usually 92 to 100 during sleep, at one tap it read 78 which it has never done before during sleep and wondered if anyone has ever experienced that. My battery was very low and I took it right after I seen the l

My Apple Watch monitors MU oxygen when I sleep and when I got up this morning and looked at my readings they were all on the 90s but one ready said 78

which is quite concerning. I looked at my nightly readings and it happened right as I was waking up I took it again after I got up and it was normal. My battery was almost dead. Has this happened to anyone and could it be an error and what would cause it? Actually it was out 12:40 am not this morning then the next two readings were 91 and then 94 within a 15 minute time

Posted on Aug 9, 2023 7:01 AM

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IdrisSeabright

Community+ 2026

Level 10

188,955 points

Aug 9, 2023 8:10 AM in response to Kyson1955

I've had one or two anomalous O2 readings in the time I've had my Watch 7. The fact that the battery was almost dead could have been a contributing factor in this case. If it's only one data point and everything else is normal, I would write it off as a glitch.

If you do not feel well, contact your doctor.

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My Apple Watch oxygen app is usually 92 to 100 during sleep, at one tap it read 78 which it has never done before during sleep and wondered if anyone has ever experienced that. My battery was very low and I took it right after I seen the l

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