My Charge 3 shows higher HR readings compared to other devices.

[njlime]

Today I rode my stationary recumbent bike for the first time since getting my Fitbit Charge 3.

The bike has a both a Polar chest strap monitor & also reads heart rate if I grip the handles alongside the seat. These 2 methods of monitoring heart rate are extremely close but I noticed the reading on my wrist (Charge 3) was consistently 8-18 bpm higher. I realize different methods & different devices will provide different readings but the degree of difference was surprising. Can anyone explain why such a difference?

Moderator edit: updated subject for clarity

[EdsonFitbit]

It's great to see you in the Fitbit Community @njlime.

Thank you for the information provided about your heart rate readings.

In this case, I would recommend visiting this article and scrolling down until you see the menu "Why is there a difference in my heart-rate reading on my Fitbit device versus another device?".

In addition, there are some factors that can affect your heart rate readings. You can learn how to resolve common issues with your heart-rate reading on your Fitbit Charge 3 in this page.

Please make sure to have the latest version of the Fitbit app (3.35 Android and 3.36 iOS). To see your current version and update, please follow these steps.

If you have any question, please let us know.