Charge 5 not recording sleep or SpO2

[Jefthro]

I have had to restart my wife's Charge 5 3 times since Christmas as it stops recording sleep or SpO2 levels which didn't happen with her Charge 4.  It appears many people are having this problem. I have had to restart my Charge 5 twice as it stopped recording calories accurately.  I have worn Fitbits since 2015 having worn the Charge 2 and Charge 4 and never had the problems I have had with the Charge 5.  My wife wants to stop wearing her Charge 5 and go to Garmin products.  If problems persist this is a viable option.

[DavideFitbit]

Hi, thank you for sharing this information about the inconvenience with your Charge 5, @Jefthro.  

Fitbit SpO2 app is automatically added for users in select countries. Make sure your device is running the latest version. For more information on updating your tracker, see How do I update my Fitbit device? For more information on the availability of Fitbit SpO2, see fitbit.com.

You should be able to see your SpO2 trends in the Health Metrics tile in the Fitbit app on your phone. To get SpO2 information, you need to: 

1. Wear your device for at least a full day, including to sleep at night.
2. In the morning, open the Fitbit app and tap the Health Metrics tile.
3. Swipe up to find the Oxygen Saturation (SpO2) tile.

If you still don't receive your SpO2 information, please follow the steps listed here below: 

1. Verify if your Fitbit profile has the correct location and time zone.
2. Open the Fitbit app, tap your profile icon > Charge 5 > Apps > SpO2.
3. Make sure all the permissions are enabled.
4. Restart your tracker to refresh its performance.
5. Tap Today at the bottom of the Fitbit app and pull down on the screen to force a manual sync.
6. Wear your tracker slightly higher on your wrist to sleep and sync it with the Fitbit app once you're awake to check your details.

In addition, and regarding the problem to track sleep, keep in mind that there are some factors that may prevent your tracker from recording your sleep. Please make sure of the following:

• If you slept in a position that prevented your device from getting a consistent heart-rate reading or wore it too loosely. For best results, wear your device as described in this help article.
• If you slept for less than 1 hour for sleep patterns or less than 3 hours for sleep stages.
• If your device’s battery is critically low.

The restart mentioned earlier should also be helpful with this problem, if you're still having trouble to track sleep. 

Hope this helps, I'll be around.