Heart rate peak shows different

[Jahan]

I am 39 yrs old female. Needed to know what does it mean whrn my fitbit charge 2 todays geart rate graph shows ‘peak’ for 2 min when peak means heart rate above 154bpm. But my tracing is showing heart rate that time was 105bpm? 

[HeydyF]

Hey @Jahan, welcome aboard! Ok, let me see if I understood. So the peak zone graph on the Fitbit app shows an amount of (154) but the tracker itself shows a different amount (105) is that right? Could you please post a screenshot of this again? I'd like to take a look. If you have questions about how to add a picture to your post, please review these instructions. 

I'll be around! 

[Jahan]

Hey thanks. I tried to attach a pic but in the instruction theres no option
for how to attach image from phone. My screenshot is in my phone.
And my fitbit app heart rate daily tracing for that day showed theres a
peak for 3 min but on the graph it doesnt show as high as a peak (>148) it
was 105.