Forum Posts

AZM not correct vs chart for HR

So yesterday my AZM says 144 mins yet where you look at the chart with the HR associated under AZM you see barely any yellow maybe 20 to 30 mins but not 2 + hours worth of consecutive zone mins would likely kill someone. It is saying from 6pm to 8:40...

Sense not reading elevated heart rate

When I'm working out it's very obvious my heart rate is elevated.  But my sense won't capture the elevated rate and seems to stay in the 80s where I am over 130bpm per manual counting.  I have tried cleaning sensors, adjusting placement, tightness, w...

Using the Sense as a Heart Rate Monitor

I'm considering purchasing the Sense to use it primarily as a heart rate monitor. I will use the heart rate screen on the "SpO2 Signature" clock, unless there's something better. How is the accuracy of the heart rate sensor? I remember the accuracy o...

Fitbit sense recording high heart rate as exercise

I not so recently got my 1st smartwatch --a fitbit sense As another way to help monitor my high heart rate and I've found that instead of giving me any alerts or notifications when my heart rate is high that it will record it as exercise such as outd...

Irregular heart rate alert

How do I get alerts for irregular heart beat and how do I turn up the volume or vibration for alerts for heart and for getting 10,000 steps?

Is there a way of hiding the heart rate on Sense?

My daughter has a fit bit and also watches the heart rate and get anxious about that. I’m wondering if there’s a way of hiding the heart rate   Moderator Edit: Clarified subject

Does Sense track HR when it's off my wrist?

Do I need to power my Fitbit off when I take it off my wrist, or will it sense that I do not have it on my wrist anymore? I’m asking because I want accurate heartbeat measurements, and I’m just unsure if it’s calculating heartbeats even when it’s off...

Auto Recognition Walking

Why does my watch record different walking into such as calories burned than when I start my walk in the Fitbit app? I have a Fitbit Sense.     Moderator Edit: Labels

Resolved! How do Sense heart rate zones impact AZM?

Why did the heart rates go up so much to get active minutes? At 65 some of the zones are dangerous for me.   Moderator Edit: Clarified subject

Resolved! Sense is tracking my heart rate inaccurately

I have checked with my friends old Fitbit watch and I am sure I have been getting wrong readings on my sense 2. Is there any way to resolve this issue?      Moderator Edit: Clarified subject

Amo-02 by Jogger
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Fitbit on the fritz

My Fitbit Sense went dead....then it restarted. Flickering and carrying on! The home button didn't work for 2 days, so I shut it down and turned it back on. It's now functioning, in part. It appears I do not have a heart...... debatable! So the heart...

Fitbit Zone

My zone activity was off the charts yesterday. This would be okay...if it were true.  I was getting a much needed massage during the intensive activity time slot (23 zone minutes) and eating during the moderate activity time slot (11 zone minutes). I...

CMLewis by Jogger
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Sense not tracking properly my BPM

My bpm while I'm exercising are not correct (fitbit sense) I'm literally dying and my watch it's like "100bpm" 

Amyww96 by Jogger
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Resolved! Sense won't track my heart rate accurately

Whereas my charge 2 gives bpm agreeing with manual watch check, my Sense 3 always gives much higher result . Why?     Moderator Edit: Clarified subject

Dave313 by Recovery Runner
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Sense heart rate monitor stopped working

My sensor has stopped working; there are usually red and green lights on the back of the watch face that are no longer flashing/on. My watch has stopped tracking my heart rate as a result. Have tried wiping the sensor and resetting the watch but no l...

Feedback about Fitbit Sense

FitBit Sense is terrible at giving an accurate heart rate so therefore my calories burned are not calculated correctly while working. I was running bleachers a couple of days ago and it said my heart rate  was 109 when it was clearly higher then that...

Sheath by Jogger
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Sense is tracking my heart rate too high

My heart rate has started recording high while at rest. when I compare it to my cardio mobile or my blood pressure they are both accurate my sense is way off recording way higher. This is dangerous since I have afib and I rely on my senses to help me...

Blatz by Jogger
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Heart rate is double true rate

Hi all, After a swim today my Fitbit is constantly showing a heart rate of 140bpm. My true BPM is around 70bpm. My wife tried on the Fitbit and it also out by double I have rebooted the Fitbit and even taken on a new update to no avail.  Any idea how...

Rivster by Jogger
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Heart rate

Hi i have had my sense a little over 2 years and i just noticed recently, that it shows my heart rate differently under Target heart rate zones that under my resting heart rate.. why is that so? Since i have really bad anxiety, it is really making me...

HR Tracking

HiDoes anyone know of a way to track and alert me ANY time my heart rate goes above 130 on the Fitbit Sense? I have a heart condition and I've been told to keep my heart rate below 130.  I know it will alert me during exercise as well as if I am inac...

HR tracking on Sense

I did an indoor HIIT workout today but the HR tracking was very poor. It was off by atleast 30 to 40 bps according to my rough estimate. After when I saw the HR graph, the readings were fluctuating significantly. Pls see the graph attached. The only ...

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Amp101 by Jogger
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Fitbit Sense - Terrible HR tracking

I just purchased the Sense a couple of weeks ago. While the rest of the features are as advertised, the heart rate tracking during workouts is horrendous!In half hour workouts where my heart rate averages 125 and peaks at 155, this useless device reg...

Dagger1 by Jogger
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Intermittent heart rate capture

Super frustrated.  I have read as many threads as I can to troubleshoot.  My sense will work and not with monitoring my heart rate.  It's almost like it gets stuck and sits at a low rate, even slows down, when I am mid workout.  And my target heart r...

Green lights on Sense stopped working

Hello,   My sister bought me a Sense around 18 months ago. It has worked fine up until about a week ago. The green senor lights are non existent and therefore my heart rate is not being read. I've tried the common troubleshooting as suggested by othe...

Advice needed: buying Sense or Versa 3?

Hi everyone!I'd really appreciate a bit of advice.I've been a long-time FitBit user and am planning on buying a new smartwatch. I've used the Flex 2, Charge 2 and Charge 3 so far and am debating on whether to upgrade to a FitBit Sense or Versa 3. I'm...

DoraD by Recovery Runner
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Sense completely dead... And I predicted it

April 2021 i left a message here  in the forums because my Ionic fitbit which had been absolutely brilliant had a day of not holding charge properly and then died.  Contacted support and given money off a new product. Reluctantly accepted but said ho...

Heart rate monitor is inaccurate

This thing assigns a heart rate to my countertop and other surfaces around my house. I no longer trust that the heart rate monitor is accurate at all The video below shows proof of the behavior: https://imgur.com/a/vEIy5B8 How is it possible that a c...

goneman by Jogger
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BMR and BMI on clock face

Hi, I have selected a clock face that can show BMR and BMI but both show as undefined, as well as the heart rate. I have had my fitbit sense about 1 week so I thought it might not have collected enough data yet. The clock face says I can add it in bu...

Sense not working after update

Ever since the update, my sense can't hold a charge and has stopped recording hr. I've shut it off, restarted, factory reset, and left it turned off for multiple days but nothing is working. 

Adh90 by Jogger
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Green light on my Sense won't turn off

The green light on my fitbit sense won't turn off ? And the red light stop blinking. What can I do    Moderator Edit: Clarified subject and updated label

Workout Minutes incorrect

I tried to find a similar issue on the forums back wasn't successful. I tried to use my watch during Brazilian Jiu-Jitsu training today.  It looks like it logged the amount of time correctly overall, and tracked heart rate but then it shows only 2 ca...

Heart rate and sleep trackers not working

Hi, I've had my Fitbit Sense for more than a year now. The heart and sleep trackers never stopped working. When I'm not wearing my watch, the rate is blank, which is how it's supposed to be, but when I wear it, it starts working right away. A few day...

Darker Skin Tone Heart Rate Not Read Properly

I just upgraded to a Sense 1 from a Versa 2. Until the bitter end my Versa 2 was able to properly read my heart rate and give me proper zone points. I worked out with the Sense 1 two days in a row and I noticed my zone points were very low. I did spr...

NadiaB by Jogger
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Is the heart rate accurate if I wear my sense on my ankle?

I just got a treadmill desk for work to get moving more often, but I noticed my Sense wasn’t tracking most of my steps while I was typing or resting my hand on the desk. I read that people fix this by wearing it on their ankle to accurately measure s...

MandiZ by Jogger
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