Oura Ring 3: Scientific Test

[@emon_12]

I really appreciate how you cut through the hype and clearly present the facts. Thanks!

[@TheQuantifiedScientist]

Glad you liked it Mark!

[@DragonofStorm]

Oura 3 is so far behind expectations, good that i waited for your review

[@christoph2079]

At the moment the Gen3 is basically the Gen2. Let's wait for the firmware updates.

[@kfedorov]

@@christoph2079 This is pretty disappointing and looks like they're rushed everything to market to get the sale going before Black Friday. I ordered my device a few weeks ago and as a new user, all the news and reviews don't make me a happy subscriber willing to pay for unknown innovations. But I still love the ring health tracker idea more that a strap, but can't drop the thought that buying good used v2 2 times cheaper and 2 times faster might be a better idea...

[@billkimura4512]

Thank you Rob! I’ve had my Gen3 ring for about 4 nights thus far and I’m getting double the REM, same amount of deep and about half the HRV as compared to my Gen2 ring. I feel that if Oura can’t master consistent reliable HR accuracy, then all other dependent biomarkers will be suspect. (Sleep stages, HRV, etc,) This is very disappointing and doesn’t give me a lot of optimism with regards to “future improvements”. Keep up the great work and I look forward to your next Oura 3 review after these “improvements”.

[@punangai]

Considering that from a technical point of view, the new generation has not changed that much, they had enough time to implement new algorithms. Their ability to significantly fix current issues in the future causes some concerns.

[@dmitryagafonov9096]

Great idea to include data from other people. Thank you, Rob!

[@TheQuantifiedScientist]

Thanks Dmitry!

[@kerry_runs]

It might be worth doing a revision when the oura ring has an update on their algorithms for Gen 3, it would be great to know if the data improves.

[@sexntuna]

When is the update planned?

[@felixreischl6023]

I love the graph you used to compare different devices for sleep tracking. Would be a great addition for all your future videos. I would also like to see something similar for heart rate measurements. Keep up the great work.

[@primenova5371]

Wow this is a such a comprehensive review. It's awesome how well and accurately you were able to compare the oura rings to the best and most accurate health devices out there. It really helps an individual decide if they want the product or not.

[@TheQuantifiedScientist]

Check out Stephan’s Blog: stephanreichl.notion.site/ Check out Max’s Blog: blog.kto.to/ 👇 $50/€50 off any Oura Ring ouraring.com/discount/5a0ecb8a92 ouraring.com/discount/9aef9304b3

[@nym49]

Both websites don't offer RSS feeds to subscribe to ... what a shame 😕

[@sandrazakrevskaya2322]

I’ve noticed that the sleep data chart doesn’t include any Apple Watch device. Is it because it’s doesn’t track REM stage?

[@ZacharyTech7]

Oura ring 3 is still using the same sleep algorithm they said the new sleep algorithm for the oura ring 3 won't come out until the other features do in 2022. Will you test the oura ring 3 again when they update the sleep algorithm and spo2 sensors. In 2022 thanks also with the temperature data of the oura ring 3 is it 24 7 can you identify your circadian rythm? Based on lowering body temps

[@mopedblade]

Hello Rob, please reply, I'm clueless on tech and I need a smartwatch or fitness band for medical reasons, I need an accurate heart rate , I do some light walking on treadmill and some light bodybuilding at home with dumbbells, thanks

[@ABagala1]

Your videos are top notch. Very professional, objective and with good concise information for consumers.

[@AleksPTA]

Thank you for the preliminary yet detailed review. I have the Oura Ring 2, purchased it second hand to test out and probably as a result, I am not offered lifetime subscription if I upgrade. Seeing your results, I am convinced to wait until the Ring 3 is fully functional Thanks again and a BIG shoutout from Australia :-)

[@francobellomo9979]

Great review, I was thinking of going next year for a WHOOP 4.0 or Oura Ring 3 but watching your videos neither is good for what they cost ... Which device is better for daily monitoring and sleep? For training I think there is no discussion on what better to buy a Polar H10.

[@WW-ob7ek]

Besides the subscription, these results made it easier for me to skip Oura 3. Great job!

[@DiggingtheJive]

Thanks for another great video that is quite timely as well! I am a current Oura 2 user and have been debating on upgrading to 3 with lifetime subscription. As much as I like the small form factor and as enticing as the lifetime subscription is, I still think for what I’m looking for, I’ll stick with the 2 until it no longer works for me and look for an alternate sleep tracker. The price:value ratio just isn’t there for me personally. I appreciate your videos for helping me make informed decisions.

[@doctorricky]

Great review man. Crazy. I love mine but always am skeptical at accuracy. I can’t hold a barbell with Oura which I hate.

[@buildwithk]

Thanks. Saved me an upgrade cost and Oura subscription!

[@julius.2003]

I waited for this video since i got the first announcement about the gen 3. Thanks man. I appreciate your scientific tests of the oura rings

[@crea8ivepeter]

Always a pleasure listening to your analysis of different health tracking devices. Thank you for putting in all this effort to ensure that we all have the right data to make a good decision. Looking forward to reviews on the Oura Ring 3 as the updates roll out.

[@tanyazadeh2104]

Thank you soooo much for this. I was looking into the Oura and I'm so glad I found your video. Now I am leaning towards a fitbit. Thank you for sharing your amazing data!

[@JBSpine007]

I have had so many problems with the gen 3 ring. I have been using the gen 2 for over a year now and while it had some drawbacks at least it was consistent. The gen 3 is a mess. Many of my values like RHR, HRV and readiness scores are quite a bit different than I experienced with the gen 2. I have written support twice and it’s been over 10 days and I have heard nothing. I have posted on Twitter and again no comment from Oura. What is going on with this company?! What a truly disastrous roll out.

[@JBSpine007]

So this is great....Oura sent me an e-mail telling me that I have a defective ring and that once I send them some information including order number they will ship me a new one. That was 5 days ago that I replied. I got a message today telling me that they were backlogged and would get back to me about getting a new ring. I'm not sure their customer service could really be any worse.

[@chloedevine]

@@JBSpine007 For me every time it records my heart rate it starts off much lower than my pulse ox. Sometimes it's 30 beats lower. It eventually catches up to what my pulse ox says but it effects my average on the graph. Is this the type of issue you had?

[@JBSpine007]

@@chloedevine My HR started high and stayed higher. I have a new ring coming in a few days.

[@chloedevine]

@@JBSpine007 glad you have a new one coming but to take a month. The customer service is so bad. It took them forever to ship my gen 3 ring after I sent them my gen 2.

[@JBSpine007]

@@chloedevine I got my new one and it is recording better than the first gen3 ring. But without the new features there is no difference to the 2.

[@halliebaer2]

I would really love to see you do some of these reviews using people who use a CPAP machine. It would be interesting to find out the accuracy for us, since our heath could really benefit from accurate data.

[@leomaia41]

Thanks for the another great video. Love to see people from academia becoming content creators as well. Question: even with an EEG device, does the accuracy of sleep staging detection hold homogeneously across different individuals? In other words: is it harder to distinguish between sleep stages across individuals with different sleep "profiles", e.g. light sleepers vs. heavy sleepers?

[@TheQuantifiedScientist]

Hi Leonardo! Well, I do think that individuals with more "normal" sleep patterns are probably easier to analyze (score), for both trained professionals and algorithms. I am not sure if it necessarily different for light sleepers vs. heavy sleepers honestly. Of course signal quality is always important. The Dreem 2 is not the best "standard" to use, but I believe it is good enough for my purposes. Ideally we would have a large group of individuals all studied with polysomnography.

[@YouYou-jr8hs]

Excellent video and testing methodology. The amount of time and effort you put into testing these products really show in your videos and is greatly appreciated. When you redo the sleep testing for the Oura 3, would you also be able to include the step count accuracy for the ring?

[@KD-rt2yd]

As an engineer, I really appreciate all your data analysis and the following comparisons! Great video as always!

[@nomad_manhattan]

Thank you, this is tremendously helpful and informative. Glad I checked this out before pulling the trigger.

[@0djc123]

Thank you!! Was waiting for this before upgrading. I think I will wait. Question please: When your goal.is general health and wellbeing, would nighttime HRV be the most important feedback you get from a wearable? Would the sleep stages really matter in terms of how your body is operating each day if the HRV was accurate? Along with this what do you think is the most important data for general health and wellbeing? Thank you so much.

[@majorgunn]

Unless I missed: Does the placement on the various fingers... is finger one better for reading?

[@J_heterodox]

This is super great and thank you. I think the product becomes much better once they release the new software and algo

[@santaev]

Great content! Really appreciate scientific approach

[@erintherapy]

I subscribed within the first 20 seconds. Grateful for the way your mind works, and so that I don't have to do this kind of work! 1- Did you happen to test the body temperature of the Oura ring 3? I'm quite interested in that. 2- What microphone do you use please? I love the warm timber it produces. Thank you!

[@BurOnOz]

Please include in future videos: scosche rhythm 24 and emfit qs. I believe they are good devices to be inside comparison list. Enjoying your videos. Thanks.

[@martingreenbank3787]

Great video as usual. Are you going to be looking at the Sleepon Go2Sleep tracker in the future?

[@hdtravel1]

Oura Ring is just so amazing - very very cool device

[@mod8]

Are you going to test Circular Ring someday? 🙂

[@andrelucas72]

Very helpful, thanks! I shall now worry less about my O3’s REM totals.

[@dbhartsock]

The old Wellue O2ring now adds sleep stage analysis. I am finding the results interesting as they are quite different than seen with the Inspire 3 and other. Would love to see this device tested.

[@danabu-reish8743]

Why tf are there dislikes. This video is perfect. Such good analytics.

[@jcwalrus]

Any thoughts on the step tracking? I wear a Garmin45s and a few months ago got an Oura3. I find that the daily steps do not consistently track the same amount of steps. It can be off +/- up to 800 steps. Will you do any videos on step tracking?

[@adrenfu6238]

Great video!pack with loads of valuable information.i decided to go with muse s 2nd gen as my sleep tracker since eeg is the gold standard for sleep tracking rather than ppg.

[@jameslove6]

Hi Rob, I wanted to take the liberty to calculate the more realistic accuracies of the Oura 3 for sleep tracking. Based off the 0.835 (83.5%) median accuracies (±6.3%) to the dream2 headband. The "true" accuracy of the Oura 3 is more appropriately given as the following: DEEP 0.737 (73.7%) ±0.056 LIGHT 0.421 (42.1%) ±0.032 REM 0.286 (28.6%) ±0.022 AWAKE 0.498 (49.8%) ±0.038 I would say based on the above "true" accuracies for sleep monitoring it is failing in three of the four catagories. Currently the Oura Ring 3, although a very cool idea for health monitoring, is quite unsatisfactory as of right now to track sleep accurately. As with technology it will improve with time so buying one now won't necessarily hurt things in the long run if you can afford it and it's a product that continues to grow and improve with R&D. It could be an excellent and practical way to detect and optimize health in the future!

[@bermagot9238]

I wonder if the finger the oura ring was on affected the discrepancies between the oura ring 2 and 3

[@nikos4641]

Hey man, love your videos. Don't you think it's less constructive to compare to the Dreem 2 - no doubt Dreem is more accurate than other devices, but still only about 81% accurate. I don't think it's sufficient comparison, especially when your others were compared to PSG.

[@swimadamswim]

Hi I really appreciate the effort for this. I did order a ring 3 then realised an extra 25-30 percent customs to the UK so have cancelled it and will source a second hand Oura 2. Can I ask ? What device would you say was most accurate over all to sleep and heart rate ? Guessing Fitbit or whoosh?? Thanks 👍

[@drtuki]

The graphic at 5:45 is awesome - could you do one for Heart Rate? There are wild differences between devices... seeing it on one page would be awesome

[@tpawlicki]

This data is great to look at! But I think there’s some polishing that could be done to make some the data more palatable. The big thing is that I don’t see “acceptable levels” shown, I can see that there are differences between OURA and other devices but what do they mean to a consumer? Is the accuracy enough to help a health conscious consumers make decisions about how to improve their health? Love the videos, as a data geek this is so great to see.

[@IrregularTangent]

Wish you can do some Garmin fenix watch testing for HR and accuracy of sleep detecting. Love your testing

[@shur8631]

I am cancelling my purchase. Thanks for the facts mate!

[@startingtoday4663]

Excellent analysis as always. Thank you!

[@TheQuantifiedScientist]

Very welcome Joe!!

[@startingtoday4663]

@@TheQuantifiedScientist And appreciate that you are incorporating results from other evaluators, adds value to your videos.

[@AAAAAA-fj3dh]

Thank you for your hard work.

[@robertopopitanu]

One interesting thing to do in order to have more reliable result should be to have Oura 3 for a couple of night on one finger and Oura 2 on another and then swap the fingers for the same amount of nights. I think that the quality of measurements depends also on the finger you are using.

[@andrew33933]

no revolution here the rings are more similar than expected. thanks for testing them🔬

[@tubejuanso]

You do an incredible job. So accurate. Thanks.

[@ThePerformanceConsultant]

Great review as always. Would be good to see a follow up with: 1) a full 14 day calibration, 2) the new algorithms in full effect, 3) the more snugly fit size you’re waiting on.

[@alexandrusuciu8275]

Hello, Rob. As your initial results seem to suggest, the 3rd gen performs worse than the 2nd generation in terms of both HR and HRV (which are actually the bread and butter of the Oura ring). First and foremost, can you definitely draw that conclusion or do you require more testing? Neverthless, how is this even possible, after 4(ish) years in the making? Can the "state-of-the-art sleep staging algorithm" bring better accuracy for the 3rd gen. HR & HRV? I know that looking at trends is important, but I value accuracy as much.

[@andrewsoh8592]

Personally I prefer to wear a wrist-type device than a ring, especially when doing activities that require hand grasping.

[@fitgearhunter]

Great review overall. Thank you!

[@DragonofStorm]

Great video!

[@TheQuantifiedScientist]

Glad you enjoyed it

[@pierrex3226]

Your HRV graph doesn't show Garmin devices. would you consider testing a Fenix watch or something like that? They do HR, HRV, sleep tracking, and they're obviously much better at tracking stats during exercise. Garmin pays third parties for software analysis of the health stats, and their hardware fits in a watch so is likely more accurate than a tiny ring. Therefore, would be great to see a test!

[@sskayesskaye]

I love your studies. Incredibly rigorous and useful for those of use trying to understand the quality of data coming off of these devices. Quick question: how did you export the heart rate data from your Oura ring? I'd like to export my raw heart rate and HRV data in order to compare with measurements from other devices (particularly blood glucose measurements from my CGM), but I can only find instructions for exporting the daily trend data.

[@jelusick3918]

Awesome work! Please make review for Biostrap EVO wristband

[@Ba1ster]

Have you tested the frontier x monitor? I’d love to know your views on this. Also what would you recommend for a 24/7 heart rate monitor apart from the watches out there. Thanks for another great video!!👍🏽

[@wanderlusttom]

Wished I saw this before purchasing

[@FredericJacquemin]

Very instructive - with the recent firmware updates, do you see improvements? (I guess you're not performing new tests on each update, but in case you did :) )

[@FredericJacquemin]

oh right - did a quick search and found your other videos - will have a look now !

[@НарекГригорян-ы6щ]

Hi Rob . Excellent work !!! I think that if you want know accurate information about your sleep you need use a eeg headband . Gadget like this analysis just your movement by hyroscop I think it’s not enough to calculate very hard process (sleep,dream). What do you think about it? I what by muse s gen2 but don’t know how it correct work….?!🤔

[@DragonofStorm]

Could you maybe test later again when the new algorithm is available? And maybe test heart rate variability during the day? (the last one is interesting for analyzing stress)

[@AC_2.4-10]

Can you do a comparison like this for the new Gen 4 Oura ring? 😀

[@williamtucker3700]

Can you mention whether comparing measurements of sleep/bpm on different parts of your body correlate? And how accurate is the headset device you are comparing against? I don't work from the ring company. I was just interested from a scientific perspective.

[@BurOnOz]

CORE body temperature monitoring. Please test this device too. Like h10, core seems to track very frequently unlike smart wearings.

[@johnatkinson3218]

Good commentary as always - just sounded like you were a bit fast, like you were late for a train?

[@mikefa5891]

Ok i wthink we got it, Oura Ring 3 is crap as an upgrade and the monthly subscription is a rip off! Please suggest an alternative.

[@IrregularTangent]

Wish you can do some Garmin fenix watch testing for HR and accuracy of detecting in sports

[@loveistheonlything3626]

Great stuff. Seems like all those trackers are overhyped and overpriced for what they actually deliver.

[@vailmcc]

I ordered, then canceled, an Oura ring over a month and a half ago.. still no refund! I email them for an answer to this and get a nondescript email saying they’re super busy, yada yada.. The very worst customer service I’ve ever experienced! Suggest you just go buy an Apple watch or something other than this..

[@kuoppa2559]

you promised to make more videos recently about a Polar vantage m watch that would comfortably cover all Polar sleep + tracking products

[@niels8034]

Nice video, which data analysis programs do you use? And would you recommend them for a student starting with data analysis?

[@Fr0gg0]

Is there a toplist somewhere where you list the most accurate watches? If not, you should think about making something like that.

[@trickycoolj]

I’m considering Oura for the future period cycle tracking. I get debilitating migraines during my periods so having a decent prediction means I can adjust plans and work schedules ahead of time.

[@isimakher8377]

Thanks for the detailed review

[@sandiegojoey1]

I'm especially interested in HRV, both while sleeping and throughout my day. I'm a very fit 57 year old by every measure except HRV (and deep sleep). My blood pressure is good, lowest overnight HR is 46bpm most nights, my V02 Max is in the 50's (Garmin says 58), but for some reason my HRV is always in the teens, today it read 13 ms and my overage over the past few years according to OURA is 20, and I've never seen a reading above 24 ms. Question. When you use your Polar H10, which app do you use to measure HRV overnight for comparison? I'd like to do the same test you did and get a second opinion. HRV seems to be as important as sleep when it comes to all of these wearable devices, there's important overlap when it comes to sleep quality and HRV and the health risks associated with poor sleep and HRV.

[@jamescollieson4726]

I’m a bit mad I placed an order for the 3 before this video. I’m live in Bermuda and they are sending me a tear ring kit again, which is annoying. Two weeks for the testing kit, and then another two weeks plus for the ring. I might see if I can cancel the order. So far the “upgrades” are very disappointing and it looks like in some categories the 2 is better!

[@zlaureti]

Yet another great video, thanks. How (which software) did you measure your sleeping HRV with the polar strap?

[@myotherusername9224]

excellent work, thanks

[@alexlemann8953]

Re HRV, the number the Oura presents to the user and factors into your readiness score is the nighttime average. How does that compare vs. the chest strap? The comparison you did looks at individual data points but I wonder whether the nighttime averages end up being close. I suppose missing peaks could pull down the average a lot.

[@MohdRadhwan]

Can you make a video a list of the most accurate (comparison) heart rate monitor smart watches?

[@janbenes630]

great video as always! have you ever tried polar vantage orthostatic test ? is it worth it?

[@Lignting13]

please rob i beg you can you review the tic watch pro 3/ tic watch pro 3 ultra.

[@Caspirius]

Is there a summary or overview of all the reviewed products this year? I'd like to know which product would suit best in each category.

[@uknw438]

Can you do a tracker tier list?

[@dantester5169]

Are there updated results for this once the new sleep algorithms have been updated?

[@PhoenixwayNet]

I find my OR3 scores my HRV significantly lower than other HRV devices I use, attached to my ear lobe. I would say that for the price, it is not accurate enough. Further, Explore measured HRV is not working properly. Very dissatisfied with this purchase...seriously considering a return. Though I do have the free lifetime membership and wonder if waiting for updates is worth it. Customer service is awful, and the company seems in freefall.

[@chusti1054]

Would you think that oring 2 will update the sleep tracking algorithm as the 3?

[@enicnarflefebvre1]

Thank you very much for the test, you saved me lots of money. I already have Oura 2 and won’t buy Oura 3. I would prefer the Fitbit for sleep tracking.

[@TheQuantifiedScientist]

Hi! Glad it was helpful. Hopefully the Oura Ring 3 firmware will improve over time. Be aware if you would still consider upgrading, do it in the next ~24 hours, since that way you can claim the lifetime subscription offer (i.e. you would not need to pay the subscription). If you upgrade later, it would be much more expensive

[@soundisfunction]

I noticed you wear the ring on your middle finger, not index finger as recommended by the company, it is possible this may affect your results significantly.

[@shawnbreau]

Hello. I currently have a Samsung Watch 4 and might be looking to buy a ring instead. Do you have any data on the watch 4?

[@erisd8452]

When will you be testing the SP02 and temperature?

[@jeureeka552]

Have you considered doing a video recommending the best item for each job?

[@thomasandersson]

Thanks for the review! Was going to buy this one, but the new subscription model hold me back, now I'm glad I didn't buy it👌

[@jarman65]

You should review the Muse S Gen 2 which was just released.

[@KatsushikaMatsumoto]

I also have a Dreem 2 and also a Oura ring 3 😎👍🏻 I’m wondering why did you use the Dreem instead the other EEG (Zmax?) to compare? Do you think the Dreem 2 is the best consumer tracker available? And could you plot the Dreem in the graph, or is it not possible to wear both EEG at the same time? And last, thanks for the great content and in depth analysis! 🚀😎

[@billkimura4512]

How did your Oura 3 compare to your Dreem 2? Did you also find a significant disagreement with the sleep state prediction?

[@inespaiva6538]

Test the huawei watch gt3 please!! I really like your reviews 👏

[@juanrodriguez5936]

Can the finger and hand where the ring is being used affect the results?