Inspire HR BPM incorrect

[Robsteal2]

I was on an elliptical today for the first time with my new Inspire HR. The elliptical machine was properly showing my accurate BPM of 135-150 throughout the 30 minute session. During the entire time, my Inspire HR was showing BPM of 75-85... grossly understated. What is the issue?

[Robsteal2]

Hello Fitbit community folks - could someone please have the courtesy to respond to my concern?

[YojanaFitbit]

A warm welcome to the Fitbit Community @Robsteal2! Sorry for the delay.

Thanks for sharing those details on your post. I'll be glad to give you a hand with your new Inspire HR. I'd like to mention that your heart rate may be affected by any a number of factors at any given moment. Movement, temperature, humidity, stress level, physical body position, caffeine intake, and medication use are just a few things that can affect your heart rate. Different medical conditions and medications can impact your heart rate as well.

When your heart beats, your capillaries expand and contract based on blood volume changes. PurePulse LED lights on your device reflect onto the skin to detect blood volume changes and finely tuned algorithms are applied to measure heart rate automatically and continuously. The heart-rate icon you see on the display tells you if you're in 1 of 3 heart-rate zones.

Your Fitbit Inspire HR can have difficulty finding a signal, typically due to the tracker's fit. For example, wearing your band tightly may constrict blood flow in your wrist and affect the signal. We recommend experimenting with how high you place the Fitbit on your wrist. You can read more about it here: How do I improve the accuracy of my heart-rate reading on my Fitbit device?

If you're wearing the Inspire HR correctly but you feel it is not the correct readings, try restarting it and keep an eye to future readings.

Give it a try and let me know how it goes!