SpO2 accuracy on Sense

[oeagleo]

Has anyone been able to test the accuracy of the SpO2 data on the Sense?  I have a "fingertip" meter that I've used to check other fitness type watches that have an "on demand" type function, but I see no such thing on the Sense.  I would greatly appreciate the ability to do spot checks to maintain confidence in the somewhat indepth information that the Sense gives.  Unless we have confidence in the accuracy of this data, it's actually just "so much fluff" that can't be verified.

Anyone?

[t.parker]

Sense measures SpO2 only during sleep so there's no chance to compare the data with anything. I'm not sure what is the SpO2 output from the night (never used Sense during sleep). On Garmin, for the whole night, I can see a chart like this:

If Fitbit provides a similar chart it's probably possible to test it against an on-demand SpO2 device (not sure how to do it while sleeping though 🙂 ). I stated my opinion several times, that the reason behind not having on-demand SpO2 reading on the Fitbit device is driven by a lack of confidence in the accuracy of such data. It's my personal opinion and I may be wrong but until now, I can't understand what problem Fitbit may have with something that other companies already provide. One cannot trust data that cannot be verified.

[oeagleo]

I agree with you, in fact, in the "Features suggestion" forum, I alluded as much, that the reason they (Fitbit) won't allow on demand measurements is because they don't want people checking.  I have checked the On Demand SpO2 measurements on a Garmin Fenix 6 Pro, and on a Samsung Galaxy Watch 3, and they're usually within 2% of the finger device that I have. (a $50 investment, so I trust it).  One must wonder.