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Very high heart rate while not being worn

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‎05-12-2020 19:27 - last edited on ‎09-08-2020 09:40 by Fitbit Moderator

‎05-12-2020 19:27 - last edited on ‎09-08-2020 09:40 by Fitbit Moderator

  • I don’t wear my Fitbit to sleep and yet it shows my heart rate was at 157 for three hours last night while I wasn’t wearing it. Any explanations? 
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‎05-13-2020 01:51

‎05-13-2020 01:51

I can't explain why you were getting heart rate readings when it wasn't being worn but it is normal too expect to see calories burnt.

 

As well as tracking calories burned through activity your fitbit also tracks your BMR calories. These are the calories you burn just keeping your body alive (even when asleep). They are calculated from your profile settings for age, height, weight etc so you needn't be wearing your fitbit to get them. What you are seeing in the morning includes the total BMR calories burned since midnight.

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‎05-13-2020 07:02

‎05-13-2020 07:02

This has happened to me a couple of times when I took the watch off and put it in my pocket. I'm wondering if it senses movement but since it can't measure the heart rate, it doesn't log it properly.

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