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Drastic Dip in HR Reading Followed by Flatline - Malfunction of Device or Heart

Sleeping HR I'm wondering if this is normal. I was in Light sleep and my HR Reading dropped from a 66 to 46 at 4:11 and stayed at that exact reading for 5 minutes. Image

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https://ibb.co/zFCX6n9

 

Sorry here is a link to the image. Idk why it won't show up there.

 

 

 

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Hello @SunsetRunner 

I tend to believe that the tracker lost contact with your wrist and had incorrect reading. My suggestion would be to keep checking and in case report similar cases.

Formerly Giampi71 - Retired from Fitbit for good on November 13th 2023
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I would not take this lightly. You should contact your doctor and ask questions about sleep apnea. Even if you are very fit, it could be an issue for you.

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