? on Wellue Rings (or similar)

[Tec5]

Any users out there, do you see an association between your oximeter and breathing events (apneas, hypopneas)?
Do the rings record saturation levels every second, or is the recorded data the average of the past several seconds?
Marketing/sales information seems somewhat fuzzy on these details, so perhaps a forum user would have more information.

[amenite]

I have the ring - I used to download the data from the device to the desktop app using the included UART USB cable (it's not a standard USB cable) which gives you a visualization of the data. You can choose to export to CSV which includes 4 second interval snapshots like so:

Time,SpO2(%),Pulse Rate(bpm),Motion,SpO2 Reminder,PR Reminder,
"01:42:05AM May 15, 2021",97,83,0,0,0,
"01:42:09AM May 15, 2021",97,82,0,0,0,

You can import this into Oscar where the SPO2 drops do seem to correlate quite a bit to OA events, in my case anyway. If you don't use the bluetooth though the Ring clock seems to drift quite a bit. I gave up messing with it and I stopped bothering to import to Oscar at all.

Now I just download via bluetooth to an app on the phone. Dunno if that's exportable from the phone but might be a thing I haven't bothered with. Data should be the same I guess on the smartphone app?

The screen on mine is dying - getting dimmer but I can still read it in the dark, or i can download to the phone and use the app.

[Tec5]

I have the ring - I used to download the data from the device to the desktop app using the included UART USB cable (it's not a standard USB cable) which gives you a visualization of the data. You can choose to export to CSV which includes 4 second interval snapshots like so:

Thanks, do have any idea if the ring takes readings every second, and then records a 4 second average, or if it only takes readings every 4 seconds?
I an currently using an EMAY EMO-80 that takes reading every second, and records each reading. Playback is via bluetooth to iphone app.
so my csv looks like this:
Date Time SpO2(%)
12/31/2023 10:32:11 PM 95
12/31/2023 10:32:12 PM 96
12/31/2023 10:32:13 PM 95
12/31/2023 10:32:14 PM 94
12/31/2023 10:32:15 PM 95
12/31/2023 10:32:16 PM 92

Now the problem is this: As you can see the SpO2 changed from 96 to 92 in 5 seconds. This gets flagged as a 4% desaturation. And of course mathematically that's true, however, if the reading rate is slower (say every 4th second), it would not be a desat. (BTW, this data was taken during sound sleep and in absence of any disruptive breathing)

The criteria for a desat should not be dependant on the devices' sampling rate.

[amenite]

Their app makes it look like it's a more frequent sampling than 4 seconds, at least once per second and possibly more frequently than that. Hard to say since the only data that can be exported has this 4 second interval.