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Charge 5 red light stays on

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‎02-20-2026 19:04 - last edited on ‎02-21-2026 03:55 by Fitbit Moderator

‎02-20-2026 19:04 - last edited on ‎02-21-2026 03:55 by Fitbit Moderator

Hello.

My Fitbit Charge 5 optical heart rate sensor shows a constant red light even when the device is not worn.

I have tried restarting, reconnecting to the phone, factory reset, leaving it in darkness, and charging — nothing helped.

The red light stays on continuously for hours.

Please advise on replacement or solution.

Moderator Edit: Clarified subject

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‎02-21-2026 04:09

‎02-21-2026 04:09

Hi there, @Yarawesome. Welcome to the Fitbit Community Forums. Thanks for bringing this to my attention and for the troubleshooting steps you've tried. I'm sorry to hear that the red sensor on your Charge 5 is still on. I understand your concern, I will do my best to help you with this!

To better assist you, I suggest reaching out to our Support Team who will be able to take a closer look into this issue and provide further help. This form is only meant for you to use. Click here to get access to it. 

We look forward to getting you back on track. 

Maria | Community Moderator, Fitbit


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