Heart rate being tracked while not wearing my Sense

[dominikgschwind]

hi Forum,

my pretty new Sense is tracking my heartrate while I am taking it off (not wearing it).

The green LEDs are just going on blinking when the Sense lays alone on the table.

I am using the latest iOS App and the Sense firmware is on 128.4.17 (latest).

Can anyone help me?

Thanks

Cheers from Switzerland

// Dominik

Moderator edit: subject for clarity 

[LiliyaFitbit]

Welcome to the Fitbit Community, @dominikgschwind.

Thanks for the details shared in your post. I was able to see that you have already contacted our Support team regarding this. If you still need help, please feel free to contact our team back as they have already all the details and special tools to continue assisting you. For more information about tracking heart rate, see How do I track heart rate with my Fitbit device?

By the way, I've moved your post to Sense board so we can keep our forums organized.

Have a nice day!

[dominikgschwind]

hello LiliyaFitbit,

thank you for the feedback!

Well, I just got back to support...  and they actually said that this should not be the case.

Once you take off the Sense an lay it down on a table it can be on it's side or upright... or upsidedown on the display... doesn't matter.

The green LEDs should stop blinking after some seconds and so should the heartrate tracking.

I tested again several times and it mostly worked fine.

There was one thing I could imagine is the problem. It's the fact that after sweating the Sense underside with the sensors can me a bit wet and/or dirty...just a little...

Can this affect the Sense so that it goes on tracking for over 2 hours without having it on the wrist? In my case it went up to a heartrate of 156 while I was in another house...?

[LiliyaFitbit]

Thank you for your reply, @dominikgschwind.

I appreciate your efforts and the additional details. I understand your concern and thank you for sharing your thoughts, some users also mention that placing device on a reflective surface can result in extra heart-rate activity. I appreciate your feedback, our team is always working on improving our devices and user experiences, and your comments are always welcome. I am glad to hear that your watch mostly works fine and hope you continue enjoying the Fitbit experience and working on your goals. 

See you around.

[mcleanne]

Mine does this too when I lay it on a surface. I just flip mine upside down (sensor side up) and it stops. 

[dominikgschwind]

hi mcleanne,

you are absolutely right!..... mine works as it should too when I put it upside-down on the table (display down).

I checked several times to lay it to either side and the LEDs always star blinking again..... back with the sensors up it stops after about 1 second.

So good to know!!

This should really be mentioned in the manual.

So thank you for solving my problem 😀

cheers

// Dominik

[LiliyaFitbit]

It’s good to see you in the community, @mcleanne. Thank you for your reply, @dominikgschwind.

@mcleanne Thank you for joining the thread and sharing your experience and solution. I appreciate your time and efforts to help other users. 

@dominikgschwind I am happy to hear that you were able to resolve this issue. Thank you for posting the update here. 

In case you have some spare time, I would like to invite you to visit our Discussions board where you can share your experiences, make new friends and create new topics.

Keep on visiting the forums!

[SunsetRunner]

Mine does this too, it recorded heart rate all day without wearing it.  My table all of a sudden has a heart rate. If sensors can detect a heart rate from a non living object then something is obviously wrong with the tech

[LiliyaFitbit]

Welcome to the Fitbit Community, @SunsetRunner.

Thank you for joining the thread and sharing that you're experiencing the same issue with your watch. I was able to see that you have already contacted our Support team regarding this, please continue working with them. I know they will be glad to help you out and provide a solution. Meanwhile, I recommend placing the watch upside down (sensor side up) as suggested in the best answer for this thread. 

See you around.

[rhorsman]

I was still having a problem with sensor side up, and then I realized my leather watch band was curling over the sensor and setting it off. Flattened it out and this stopped. For anyone else not using the silicon one!

[LiliyaFitbit]

Welcome to the Fitbit Community, @rhorsman.

Thank you for joining the thread and sharing your experience. I am glad to hear you were able to resolve the issue and thank you for sharing what you did as it may help other members in the same situation. I appreciate your time and feedback. 

See you around.