Good Morning,
My experience with Fitbit has been pretty consistent in many aspects of its functions.
Steps accuracy is pretty solid just walking on reasonably level ground. Stairs are all over the map. Some days readings are not at all close. Other days, it can be somewhat close. Hand and arm motion can add steps. Just lift your arm wearing the tracker (take a look at your steps number first) and shake your fist back and forth vigorously. I worked in a retail food store and found that flipping open plastic bags drove my "steps" totals off the rails.
Regarding the SpO2 graphs and readings. I have not ever been able to correlate those values to my sleep data as shown by my CPAP and a "medically recognized" SpO2 device which I wear all night, every night. I use the Fitbit SpO2 as a loose guide to what happened overnight but I put little faith in the displayed results.
The change in the SpO2 graphs in the July update debacle was really alarming initially. I did suspect a possible programming miscue in short order when I saw all my previous records also displaying the same characteristics. It wasn't just the readings of that one night (after the update glitch) but all the SpO2 records displayed in the device and app.
I had a couple of my entries in this exchange chain removed for passing on data related to a link to roll back the Fitbit app version. I wasn't thinking about "violating" any community standards but rather passed on my successful experience (and suggestion to use that link) for the benefit of other affected Fitbit users.
In my opinion, Fitbit is playing hardball. I would have thought they would appreciate their followers coming up with a reasonable fix for their own programming miscue. I was a bit taken aback by the removal of my and others posts in this matter. But I have concluded that "it is what it is".
I will wear my Charge 3 until it breaks then will be looking for an alternative.
Take care and be safe.
GordK
Edmonton, Alberta, Canada
