Pulse readings jump 30 counts above actual while exercising.

[Shadywood]

Pulse readings jump 30 counts above actual while exercising.  The false high reading persists for 10-15 minutes and then drops down to actual.  Looking at the graph, the changes are clearly a step change - not a gradual up and down.  This only occurs while exercising (treadmill), but not every time.

I wear my Fitbit on my non-dominant wrist with the Fitbit positioned 1 inch from the wrist joint.  The fit on my wrist is comfortable snug.

[kawaiiko]

I assume you are referring to your heart rate count.  If you are, that’s pretty typical.  

If you don’t believe it’s correct, I suggest using a different device to check. 

I use my polar hr reader and it’s very close... 

let me know if you have any questions.

[RhondaXCB]

Mine thinks my HR is 175, sudden change. Yes I'm exercising, but my actual heart rate is about 110 what gives? I just updated last night did that screw it up?