This story is being continuously updated, and new updates are being added at the bottom.

Original story (published on March 23, 2021) follows:

The Fitbit Charge 4 is now a year old following its March 2020 launch to continue a line of Charge health and fitness trackers that keeps on delivering with each iteration.

Building on what has made the Fitbit Charge series popular, the Charge 4 picked up built-in GPS, Spotify support, and even more sleep tools.

But Fitbit had to wait until the latest smartwatch lineup that consists of the Sense and Versa to introduce support for SpO2 tracking. If you felt like ditching your Charge 4 solely for this feature, well, put that aside.


In a recent update to the Charge 4 firmware that bumped the version number to 1.100.34, Fitbit has added some awesome features for the fitness freaks.

With SpO2 tracking, the Charge 4 tracks your blood oxygen saturation at night, with the average displayed on your wrist the next morning.

There are even more details in the new Health Metrics dashboard that is also part of the latest update.


Besides the SPo2 data, you also get details on “health metrics like heart rate variability, RHR and breathing rate, along with your oxygen saturation (SpO2), and skin temperature variation.”

According to Fitbit, having knowledge of your skin temperature variations could play a role in identifying the potential onset of a fever or ovulation.

But it is with this skin temperature variation tracking feature that Fitbit Charge 4 users are experiencing some unwanted issue. Apparently, the feature is missing from the Health Metrics dashboard.


In this blogpost they said skin temperature is added to Health metrics dashboard but I can’t see in my dashboard (im premium user).

Have the latest firmware installed and still no Skin Temperature reading!

On the official announcement post in the community forum, plenty of unhappy Fitbit Charge 4 users are full of questions regarding the missing skin temperature variation tracking function.

And in response, a forum moderator has come out to confirm that the cries of affected users have been heard and that Fitbit will have an update on this matter pretty soon.

We hear your concerns on the skin temperature feature and hope to have an update soon. Thanks.


Unfortunately, no one knows how long this “soon” represents, so we have to wait. Hopefully, Fitbit doesn’t take ages to address the issue or at least put out a statement on this.

As usual, we will be keeping an eye on this development and let you know when we have news. Stay tuned to PiunikaWeb.

Update 1 (April 02)

(IST) 05:30 pm: One of the community moderators is suggesting the affected users to check for the latest update, establish sync once again, or restart the device. Here is their exact statement:

If you have 3+ nights of sleep data but still have some or all of your health metrics data missing, please try the following troubleshooting steps:
1. Check latest app version
2. Sync App
3. Restart Device
4. Restart Mobile Device

Update 2 (June 30)

(IST) 07:02 pm: According to a user report, Fitbit appears to have fixed the issue where skin temperature variation tracking data was missing in Health Metrics Dashboard weeks ago.

Ok this is confirmed. This weekend I slept over 10hrs! And yep I got my skin temperature graph responding …this was not the case for about x4 days where my sleep was less than 3hrs

While Fitbit Support recently tweeted that multiple Health Metrics issues have now been resolved, the missing temperature variation tracking data issue was not specifically mentioned in the tweet.

We resolved an issue that affected today’s sleep stages and health metrics data. Sleep stages and other data will appear again tomorrow.

PiunikaWeb started as purely an investigative tech journalism website with main focus on ‘breaking’ or ‘exclusive’ news. In no time, our stories got picked up by the likes of Forbes, Foxnews, Gizmodo, TechCrunch, Engadget, The Verge, Macrumors, and many others. Want to know more about us? Head here.

Hillary Keverenge
2197 Posts

Tech has been my playground for over a decade. While the Android journey began early, it truly took flight with the revolutionary Lollipop update. Since then, it's been a parade of Android devices (with a sprinkle of iOS), culminating in a mostly happy marriage with Google's smart home ecosystem. Expect insightful articles and explorations of the ever-evolving world of Android and Google products coupled with occasional rants on the Nest smart home ecosystem.

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