Estimated Oxygen Variation

[Den_in_USA]

Why is this now available on only some Charge 3 and Versas? 

[sharquinn]

When I got my Fitbit Versa lite in December it was showing my oxygen levels, that has recently stopped and I can’t find it anywhere.

Any thoughts?

[pbug56]

Frightening that they would only collect a seemingly useless artificial
data set rather than the raw data behind it. They seem to truly wish to
provide no viable O2 level information - though I hope I'm wrong.

I also read today that if you want to see your heart rate raw data you have
to pay for the 'premium' service.

[Josepereh]

The raw data is in .json (can be translated into .csv or .xls easily) and is collected every 5 seconds (if I trust my memory) with a confidence tag that seems to go from 0 to 3.

I think the infrared-to-red (translated into EOV to mask the lack of accuracy) is all they can calculate if my knowledge of SpO2 fundamentals is right.

[pbug56]

It's my understanding that a number of fitness trackers out these days and
these last few years have SPO2 trackers that give moderately accurate
percentages - viewable live, like a fingerclip (though likely a bit less
accurate since the emitter and sensor are only on one side of the wrist).
We're not looking for super accurate - nearly as accurate as a fingerclip.

That begs the question - is the Fitbit SPO2 sensor of lesser capability
than those from other firms?

Just curious, how do you convert whatever .json is to Excel?

[Lafferty3]

I spoke with support yesterday and the answer I got was it’s rolling out and apparently I don’t have it yet.

Sent from my iPhone

[Lafferty3]

I am paying for premium.

Sent from my iPhone

[Lafferty3]

The issue is that it is not there

Sent from my iPhone

[heropin22]

I had this feature and now it disappeared. Why? and when will i get it back? 

[BobHall]

It was there for me too, now it is gone after a message "cleaning up". Nothing has broken, just the feature has disappeared. It's a bit of a tease to show it and then remove, but presumably it will eventually it will become stable and work. As disappointing as it is, I have experienced similar roll out issues, lest we forget the healthcare.gov fiasco. At least my Fitbit provides good value for what it does and these new features are exciting additions for when they arrive. 

[Josepereh]

I used some online tool .json to .xml (just google it, there must be dozens), I'll code some Matlab script one of those days to make all this automatic. I'll post it when (if) done

[Josepereh]

I know that all reflective SpO2 meters are less acurate and figures are just to be interpreted in a relative manner. So I do not expect any accuracy on an absolute saturation number, jus drops above/below some reference. But my concern is that the EOV in the fitbit infrared-to-red ratio raw data does not correlate with a traditional finger meter in the basic trends (increase/decrease alomg time). Is it a wrong algorithm? Not the right chips to measure it? I do not know. In any case, this is what I get from raw data, not the app graph, since I still do not have it rolled out. So, let's wait.

[distressor]

To convert JSON to EXCEL Table:

In Excel, Click the Data tab, then Get Data > From File > From JSON.
Browse to your JSON file location, select it, and click Open.
Once the Query Editor has loaded your data, click Convert > Into Table, then Close & Load.

I've been seeing the red lights since I got my Charge 3 in November.  Every night if I wake up or in the morning briefly. 

The data is surely being tracked and synced with the Fitbit servers and digitally analysed during this slow beta-esque rollout. When they choose to give us ACCESS to this data is when they are 51% confident it won't be completely useless and or FDA pending approval. 

I'm currently trying to make heads or tails of the raw data in Excel.  

[SunsetRunner]

Nobody knows

[dconley]

The graph was on my phone app for a few days, then quit showing up. 

[SunsetRunner]

Maybe there’s still a few bugs in it

[Piddo]

I am no longer able to see my EOV on my app. It was there yesterday. Today it's not visible. Why would this be?

[Meggles1017]

 I received the versa 2 for Christmas. I had the oxygen variations with my sleep log but now, a month later, it's dissapeared. Why was I able to have this feature and now its gone? I can't view the oxygen variations from ANY of the past sleep logs either...

[Josepereh]

Being conspiranoic: maybe what we say in this forum has something  to be with the recent disparition of the EOV graph!

Whatever the case, I expect google knows that they purchased a company which who sells air. I feel being cheated with Charge 3 SpO2 promises after 1.5 years of purchasing it with no data at all.

Moderator edit: format

[MoeFun]

OK, here's a question for you...Oxygen Variation? I, supposedly, signed up for the Premium App, but every time I try to get any of the "premium perks" it shows I'm either locked out (Coach) or suggests I get Premium...DUH, I have! I'd love to see and utilize the things like Oxygen levels but can't.

[DC.]

I've done a little charting of the Fitbit SPO2 (undocumented) numbers versus a fingertip tracker and I can sort of see how they relate if I squint, but not well enough to try to use them instead of a dedicated pulse-oximeter. The data file describes the data as a "ratio" but it swings wildly positive and negative, which doesn't correlate with my understanding of how any of the typical pulse-ox ratios would work. Instead I think it is a delta between successive "readings" (granularity is only 1 minute intervals), but is still very noisy and biased compared to fingertip data -- so I guess I can see why it has taken them two years to figure out a way to make it useful.