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Jumps/drops in heart rate measurement.

Hello everyone,
I've been noticing some strange "jumps" and "drops" in my heart rate tracking lately.
As you can see although the pace is constant there are points where in a few seconds the heart rate reading spikes and falls varying by even 20bpm in a few moments.
Is this normal? Is there any way to adjust this or should I be concerned?

Thank you in advance for your help.

0 4684381 over 1 year ago

If these are measurements using WHR, then nothing special.

But if using a belt, then in my opinion it is better to seek advice from a doctor.

0 S.C. over 1 year ago in reply to 4684381

Yes, these are measurements via the sensor on the wrist.

I should also mention that with the same watch model FR245, I have also had in the past spikes in my heart rate practically at total rest.