I started getting HR data in the app right away.
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Thanks for the response. Mine has become intermittent but itās 2 nights now with no HRV, which is actually what I bought it for. Weāll see what they say whenever they respond
Sounds like an issue with your ring? Mine worked out of the box and I had HR and HRV all working the first night. Hopefully Oura can replace or fix it for you.
for all those that upgraded to the gen3 version, what did you do with your gen2 one? Did you give it to a friend or are you using it on another hand to compare the scores to each other 
Iām thinking of trying to sell it on Ebay - might get something for it.
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Thanks for the comment. I went through the troubleshooting with them and none seemed to work. Either I had a bad device or I could benefit from half sizes (I have a 10, and have ābigā knuckles but thin fingers apparently? I canāt get the 9 past my knuckles so canāt size down). Definitely not an arrhythmia as measured against polar H10. I guess potentially could be low resting HR as itās typically high 30s, but Iāve never seen below 33 that Iām aware of which is their cutoff.
In any case, I just sent back to Oura and purchased the 18 month plan for Whoop 4.0. I certainly prefer the look of the Oura ring, but given their sizing it may not work for me.
I got an Oura 3 for Christmas and generally really like it so far, but have a couple of gripes. Iām unclear about the HRV values. I know it measures overnight, but it only measures RMSSD, which is just one of many results measured by my Elite HRV App (using a Wahoo tickr) after I wake up. My Oura HRV for the last week has been 20 (+/- 3 points) for last week, while Elite HRV RMSSD has generally been between 48 and 72, but did record 22 on two days. Iām 69 and know HRV declines with age, but these readings are dramatically different. Elite HRV has a database allowing comparison between age-adjusted male/females, while Oura has no age or gender adjustment. Iām questioning whether Ouraās HRV reading is reliable and if itās been validated?
So far, Iām rated low on deep sleep, even though I get 7 to 8 hours of sleep rated efficient and restful. Aging causes deep sleep to diminish and again, Oura is not age-adjusted.
It it my impression that Oura has done a fair bit of work on validation of their measurements - when I looked into this 1+ years ago it really seemed they were doing more of this than whoop.
Here is one study regarding your question:
This is something that Oura almost certainly paid for or at least supported, but likely most/all device studies like this will be that way - they wonāt be used in independent studies until there is some basis that they are doing useful measurements. I was involved in a UCSF study using the oura rings to see if it could detect COVID infections - I think the data from the 2nd part of that study are still being analyzed. I donāt know how critical the HRV readings in particular were to them using the ring, as they were using all the data collected by it.
I donāt know how this relates resting HRV, but the Tickrs are useless for collecting HRV during exercise - the DFA alpha1 numbers gathered from a ticker were meaningless in my case, and this seems a common experience. My numbers from the tickr has so many artifacts as to be way, way off. See HRV Logger FAQ - Heart Rate Variability Tools You may or may not be getting good numbers from your tickr, and I think you should be very cautious in regarding the numbers from the tickr as being the correct ones that other measurements should match.
On the sleep phases, I donāt think any trackers have good validations of sleep stages - those are guesses made from hand movement, etc. I have not seen good validation regarding this part of sleep tracking.
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Not for athletes !!! Its been two months and still having issues with miscalculation of calories imported from health app ! All the readiness and activity data are miscalculated and are wrong ! Also 50 percent of the naps are detected. The only use for this device is sleep data !!! Very frustrating communicating with their customer service when the donāt give straight answers !!!
This is very much in line with my experience. Luckily I immediately had issues within the first day and week that made zero sense and their customer service kept sending me to their ācommon problemsā page (or whatever they called it). After about 10 days I returned it. I was pretty disappointed as I definitely wanted it to work, but Iām now a week away from receiving a whoop strap.
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The results of the second COVID related study that used the Oura ring have been published.
Abstract:
Blockquote There is significant variability in neutralizing antibody responses (which correlate with immune protection) after COVID-19 vaccination, but only limited information is available about predictors of these responses. We investigated whether device-generated summaries of physiological metrics collected by a wearable device correlated with post-vaccination levels of antibodies to the SARS-CoV-2 receptor-binding domain (RBD), the target of neutralizing antibodies generated by existing COVID-19 vaccines. One thousand, one hundred and seventy-nine participants wore an off-the-shelf wearable device (Oura Ring), reported dates of COVID-19 vaccinations, and completed testing for antibodies to the SARS-CoV-2 RBD during the U.S. COVID-19 vaccination rollout. We found that on the night immediately following the second mRNA injection (Moderna-NIAID and Pfizer-BioNTech) increases in dermal temperature deviation and resting heart rate, and decreases in heart rate variability (a measure of sympathetic nervous system activation) and deep sleep were each statistically significantly correlated with greater RBD antibody responses. These associations were stronger in models using metrics adjusted for the pre-vaccination baseline period. Greater temperature deviation emerged as the strongest independent predictor of greater RBD antibody responses in multivariable models. In contrast to data on certain other vaccines, we did not find clear associations between increased sleep surrounding vaccination and antibody responses.
Here is another Oura COVID study, aimed at detecting COVID-19 onset.
https://www.nature.com/articles/s41598-022-07314-0.pdf
Abstract:
Blockquote
Early detection of diseases such as COVID-19 could be a critical tool in reducing disease transmission
by helping individuals recognize when they should self-isolate, seek testing, and obtain early medical
intervention. Consumer wearable devices that continuously measure physiological metrics hold
promise as tools for early illness detection. We gathered daily questionnaire data and physiological
data using a consumer wearable (Oura Ring) from 63,153 participants, of whom 704 self-reported
possible COVID-19 disease. We selected 73 of these 704 participants with reliable confrmation of
COVID-19 by PCR testing and high-quality physiological data for algorithm training to identify onset
of COVID-19 using machine learning classifcation. The algorithm identifed COVID-19 an average
of 2.75 days before participants sought diagnostic testing with a sensitivity of 82% and specifcity
of 63%. The receiving operating characteristic (ROC) area under the curve (AUC) was 0.819 (95% CI
[0.809, 0.830]). Including continuous temperature yielded an AUC 4.9% higher than without this
feature. For further validation, we obtained SARS CoV-2 antibody in a subset of participants and
identifed 10 additional participants who self-reported COVID-19 disease with antibody confrmation.
The algorithm had an overall ROC AUC of 0.819 (95% CI [0.809, 0.830]), with a sensitivity of 90%
and specifcity of 80% in these additional participants. Finally, we observed substantial variation in
accuracy based on age and biological sex. Findings highlight the importance of including temperature
assessment, using continuous physiological features for alignment, and including diverse populations
in algorithm development to optimize accuracy in COVID-19 detection from wearables.
Oura Ring hits 1 million user milestone!
Will be getting my Gen 3 for my birthday in June. Based on what Iāve read, I have certain things I expect and others I do not:
- I donāt care about the recovery/readiness score. Once I get a new HRV baseline established within HRV4Training from the Oura, Iām comfortable using that ārawā data. Anyway, I donāt really care to trust an algorithm I donāt understandā¦ and Whoop scores seem like a random number generator, guessing Oura isnāt much better.
- I am excited for sleep tracking, as well as temperature and RHR tracking for onset of illness. Iām generally someone who powers through until Iām full-blown sick, but I expect with reinforcement of data I might be more likely to back off earlier.
- I donāt really give a rip about the activity tracking; Iāve never used it on a phone or watch, and itās irrelevant for me anyway since the vast majority of my activity is going to come from my training.
- I am also a sleep apnea sufferer, and for two decades suffered from horrendous sleep. I donāt anymore, but I want to drill into this deeper with respect to optimizing my sleep especially as I amp up volume. The SpO2 measurement that supposedly is coming online in June and improved sleep tracking will be worth it alone.
- Also should mention, Iām previously coming from using Sleep Tracker on iPhone. I find it isnāt great because it uses the microphone to detect sounds and such, and since my wife is there too and sometimes goes to bed at a different time or reads, it underestimates my sleep more often than not. And there are some nights where I feel like I slept like crap but Sleep Tracker gives me the exploding 100% score because I was laying in bed for like 9 hoursā¦ so hereās hoping O3 will be much better.
- I think itāll be cool to be able to do my HRV4Training assessments a bit later in the day. I find that on my walk from the bed to the bathroom Iām usually foggy enough that I canāt really tell how sore or fatigued I am or where my mental energy is. After Iām awake for about an hour and moved around a bit, I canā¦ so sometimes what I log in TrainingPeaks doesnāt match what I put in HRV4Training earlier in the day. So, Oura can log the measurements overnight, then after breakfast I can do my subjective data on TP and HRV4T at the same time.
(It would be really nice if TrainingPeaks could import HRV4T subjective measurements directlyā¦ but thatās another thread.)
Excited to join the gang here even if Oura falls short for athletes in a few ways (which are mostly irrelevant to me anyway).
Arrived on my birthday. Created a new HRV4T account to reset baseline and reset my Pro account. Got all the Strava - Apple Health - TrainingPeaks - Oura - HRV4T integrations setup (good grief people! 
).
In my ātransitionā following my injury so a pretty good time to reset my baseline. Excited to see how this goes, and hopefully get some actionable data here as I was from the PolarH10/HRV4T.
First learning from Oura that I wouldnāt have had otherwise thanks to overnight RHR monitoring:
Nights where I have one drink, RHR is usually mid-40s. Last night I had more wine than usual, RHR was 49. Nights where I abstain, RHR is 2-4 beats lower.
Also last night I didnāt hit my minimum RHR until almost 6am usually itās closer to 1-2am. Signs the body has to work hard to process alcohol out.
Versus more normal:
Certainly stuff that we know, but it is interesting and informative to see it play out with my personal HR data.
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New to Oura ring, only a few days in. Trying to figure out how to best integrate with TR and life to get the most out of it. Overall, Im stubborn (or dumb?) and need some guard rails on my activity/rest levels. Hoping this will help me dial things back rather than getting sick once a month form over doing it.
Figured out that I need to turn on the sport mode HR tracking as my wahoo tckr data from strava doesnāt pull in.
Other tips ?
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Oura ring user here.
I found out that the app has a major issue that might make stats very unreliable: For the app to import workouts (e.g. from Strava), the app needs to be open at least once a day. Otherwise, workouts are not imported, and if you miss a day, that day is not imported ever.
I donāt open the app every day, so itās missing well more than half my workouts. Iām not sure what the ripple effect is on other stats (readiness), but I imagine it canāt be good!
The battery life has also been worsening. Itās now closer to 3 days, after a year and a half.
And Samsung is releasing a ring now too.
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