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Enable Blood Oxygen Estimation on Charge 3?

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I purchased a new Charge 3 and received it yesterday after hearing that Fitbit has activated a new feature that enables it to estimate blood oxygen levels during sleep. I made the switch from another Fitbit watch that I'd been wearing for a couple of weeks. How do I enable Sp02/blood oxygen monitoring/estimation on Charge 3?

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196 REPLIES 196
Reboot worked for me too

Sent from my iPad
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I'm the original poster in this particular thread. I've had this feature
for a few weeks now. I'm honestly pretty surprised my variance isn't higher.
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How do you "Reboot"? I've tried everything to get the O2 sensor working. This is just a higher priced inspire basically  which is infuriating. 

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I'm curious too

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I’m not very tech savvy but I believe I finally found the red boat by going into settings on the Fitbit app and explained how to do it I could be wrong but it can’t hurt to try that I believe I just I had to press the side button on my Fitbit until it turned off

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Yes, I agree. They must read these messages as they’re on their FitBit app. I wonder why they don’t respond? 

 

 

Moderator Edit: Formatting

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I unpaired my inspire which showed the oxygen sensor info on my app though the inspire doesn't have it. I then paired and rebooted 5x my new charge 3 and deleted and reinstalled and updated the fit bit app and STILLNK OXYGEN sensor info showing. What the H#LL else am I supposed to do with it. I've read and reread ALL  the instructions to get this working and it doesn't. I basically paid $170 for a larger Inspire which I rather liked much better. The first Charge 3 I recieved malfunctioned during set up & was a lemon & had to send it back. Now the new one i was able to set up minus the all important oxygen sensor part but the rest of it works. I'm still not happy with this since the ONLY reason for the upgrade was for the Oxygen sensor.  What the heck else do I have to do besides beating it with a hammer to get it to work?

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It’s really frustrating isn’t it. I think if everyone got rid of their fitbits they’d soon fix the problem. It was a good app to have. 

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Did you try to start from scratch? Unpair your Charge 3 and try pairing it again. Hope this helps

Sent from my iPhone
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Hi, yes done everything. Reboot, deleted app restored app. Synced it over and over. Nothing is working. I think it is definitely the fault of the company who own Fitbit. Frustrating they’re not giving any input at all. 

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Mine still is not updated. No oxygen sensor at all. I’ve been waiting
months for this feature and was the main reason I selected this model.
Extremely frustrated and annoyed with Fitbit and the poor way they treat
their customers.
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Yes I've done that a few times and rebooted and all the other things they've suggested. I don't see any red lights on back though they're spots for them.

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Keep scrolling down after you see the sleeping graph, below the details,
keep scrolling down.
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Finally...Finally Thank you so much for explaining the way to find the Oxygen graphs.  I thought I was very stupid and/or this Charge 3 was crap. I clicked on the # of my sleep score and did scroll and scroll down and there it was!! Everyone with this issue go to your sleep score example 76. Click on it and a whole new world of information appears. Keep scrolling down and you will see the graph and more information.  Finally I know my O2 is off at beginning of my sleep but gets better later on. What a relief to finally get the right information.  Thank you again.

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The oxygen only shows for me when I'm sleeping. 

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I was under the impression that was the only time it registered.  I'm not aware of it working any other way. I'm just happy I found it cause I have sleep apnea and bought this for checking my night time oxygenation. 

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I deleted the device and paired it again. Now it is working! I had tried everything multiple times except deleting it. For the first time I have an oxygen variation chart in the daily sleep details.

 

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I don't know what the "red lights" refers to.
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Doctors have wanted to test me in the lab for sleep apnea so when I heard
about this app that will not only show how often I wake up, but if my
breathing is affecting it. So far, what I have seen is that I keep waking
up, but my oxygen variation is always below the line. So I am interested,
since you know you have apnea, does it correlate with the times you wake up?
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Hi, I’ve only had the graph for over a week and 2 night’s of that it didn’t work. It only showed a slight high on one of the nights briefly.  I woke 3 times in the night, once with a racing heart yet the heart rate section of my Fitbit registered no higher than 66 bpm. It was 108 bpm ( I have a pulsometer). I’m beginning to think the Fitbit is very inaccurate in lots of ways. 

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