Comment by theshrike79
12 hours ago
Measuring metrics is easy, it's the algorithm on the backend that matters.
There's a reason why Oura rings are expensive and it's not the hardware - you can get similar stuff for 50€ on Aliexpress.
But none of them predicted my Covid infection days in advance. Oura did.
A device like the Apple Watch that's on you 24/7 is good with TRENDS, not absolute measurements. It can tell you if your heart rate, blood oxygen or something else is more or less than before, statistically. For absolute measurements it's OK, but not exact.
And from that we can make educated guesses on whether a visit to a doctor is necessary.
I'm curious how the ring detected it in advance? I also discovered my Covid when I looked at my Garmin watch and my resting heart rate was 100, until then I had thought I had too much sun that day.
Some of the metrics were out of whack, I think my average body temp was up along with my resting heart rate both asleep and awake.
It somehow takes all that and gave me a "you might be sick" notification.
How is that predicting in advance though? Sounds like it measured active symptoms like a change in body temp etc. That's not prediction, that's reaction.
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> But none of them predicted my Covid infection days in advance. Oura did.
It actually warned you, or retrospectively looking at the metrics you could see that there was a pattern in advance of symptoms? (If the latter, same here with my Garmin watch - precipitous HRV decline in the 7 days before symptoms. But no actual warning.)
It actually told me, they've been doing this for a while: https://ouraring.com/blog/early-covid-symptoms/
Of course it didn't tell me "you have COVID19-B variant C" - but it did tell me I'm probably sick and should seek care.