Versa 4 won't track my SpO2

[Batonrougelarry]

My Versa 4 reports my oxygen level rarely. Most often it says “couldn’t read Sp02”

please help. Thanks

Moderator Edit: Clarified subject

[Guy_]

Hi @Batonrougelarry - this may be partially due to a improper syncing, it depends where you look for this information and if the watch is clean and you are getting proper restful sleep and reduced heart rate when wearing at night.

Some values are calculated and can take time to appear, try syncing again a bit later.

[MarreFitbit]

Hi there, @Batonrougelarry. Welcome to the Fitbit Community Forums. Thanks for the details provided in your post about the issue with your SpO2 data. We're here to help!

Please keep the following in mind to make sure your Fitbit device successfully measures your SpO2 values:

• Your device doesn’t retroactively measure your SpO2 values. After you install the clock face, you’ll see dashed lines until after your next sleep session.
• Charge your Fitbit device to make sure it’s able to collect data throughout your entire sleep session. Note that you may have to charge your Fitbit device more often when using the SpO2 Signature clock face.
• Your Fitbit device must sync with the Fitbit app before the clock face updates. Note that it may take around an hour for your SpO2 values to appear after you sync your device. For troubleshooting syncing, see Why won't my Fitbit device sync?

• Turning off any clock face permissions can cause the clock face to stop functioning. To check these settings:

  1. With your Fitbit device nearby, open the Fitbit app on your phone or tablet.
  2. In the Fitbit app, tap the Today tab > your profile picture > your device image.
  3. Tap Clock Faces.
  4. Tap the SpO2 Signature clock face.
  5. Tap Permissions. Turn on any permissions you turned off.
  6. Tap Details when you're done making changes.

• Your Fitbit device must be able to consistently track your SpO2 data:

  • Make sure your device is in contact with your skin.

  • Your device should be snug but not constricting.

  • Tattooed skin can impact the accuracy of the red and infrared sensors on your Fitbit device.

For more information about SpO2, see: How do I track blood oxygen saturation (SpO2) with my Fitbit device?