Sense heart rate totally inaccurate

[VincePaggy]

I was unable to use the Sense to workout using heart rate function as the HR dropped during peak HR.  I borrowed my friends Garmin.  Sense kept moving from 120 to 160 while Garmin stable at 156 to 160.  

I called Fitbit customer support and they walked me through a whole reset / update process. I think it was purely to waste my time as this did not work.  I called back and finally accepted that I return it for verification testing.  After 6 days called Fitbit customer support again. Yes they received but they can’t even tell me when I get feedback.   In the meantime no personal device and I need to train for a May Sicily bike ride for 2 weeks.  I will spend on Garmin while Fitbit fiddles with this very well known issue.  I’ll try to return the Fitbit or give it to my teenage niece ( it’s literally junk).

My wife and I have been fans of Fitbit since 2015 since we liked the app features as it is super user friendly.   Also, customer service was very responsive on earlier devices / not anymore.  

Moderator edit: word choice

[LokeAa]

@VincePaggy I agree with your view on supports mracle answertoall issues "factory reset" - it takes forever, and does not work for most issues. Reminds me of comupter customer service 20 years ago....

I do understand the frustraion over not having a device or a periode, but I am impressed that customer service wanted to check your device. They must have taken you seriously. I have hamy issues with Sense, but not with HR readings. It is not accurate when I run short intervals, meaning it has a delayed response when I go from slow jog to full sprint and vice verse, but within what I can accept from a wrist worn device.

You say "kept moving from 120 to 160" - for how long? And only in peak zone?