Heart rate drop during exercise

[SunsetRunner]

Recently my Charge 2 has shown a sharp drop in heart rate during intense exercise. Does anyone know why this happens?

[thomasrigsby]

unfortunatelyi have the same issue as you have. even tighten the tracker around my wrist does not solve this problem. i also waer the tracker about one to two cm above the wrist joint. today i rode 90 minutes by bike and fitbit recognized only 15 minutes of activity.

[Toniern78]

Did you get this solved? Could you share a screenshot? I'm having the save issue. 

[SunsetRunner]

I haven’t found a solution....and still occasionally have this issue.

[Toniern78]

Thanks... Very frustrating  

[Mariebiscuits]

I have the same issue. I think if my HR really had dropped this fast during exercise, I would have keeled over.

Same thing happened two weeks ago, on a longer run. I'm assuming it's a problem with the fitbit. Am I right? Has anyone else seen anything similar?

[Drsmith1997]

Same issue on treadmill, seems to happen after sharp speed increase.