






💍 Own your health journey in style — the future fits on your finger.
The Oura Ring 4 is a cutting-edge smart ring crafted from titanium, designed to track over 50 health metrics including sleep, heart rate, stress, and women’s health. Featuring Smart Sensing technology, it adapts to your body for precise, continuous monitoring. With up to 8 days of battery life, IP68 water resistance, and multi-ring style options controlled via the Oura app, it blends advanced biometric tracking with elegant, wearable design. Compatible with iOS and Android, it supports Bluetooth connectivity and is HSA/FSA eligible, making it a smart health investment for professionals seeking discreet, data-driven wellness insights.




















| ASIN | B0D9WV3474 |
| Additional Features | Heart Rate Monitor, Activity Tracker, Sleep Monitor |
| Age Range Description | Adult |
| Band Material Type | Metal |
| Battery Average Life | 5 days |
| Battery Capacity | 18 |
| Battery Cell Type | Lithium Polymer |
| Battery Charge Time | 80 minutes |
| Best Sellers Rank | #288 in Electronics ( See Top 100 in Electronics ) #3 in Smart Rings |
| Brand | OURA |
| Built-In Media | Oura Ring 4, Oura Ring 4 Charger, USB Cable, Information Booklet, Quick Start Guide |
| Color | Rose Gold |
| Communication Feature | Bluetooth, GPS |
| Compatible Devices | Smartphone |
| Compatible Phone Models | Compatible with iOS and Android devices |
| Connectivity Technology | Bluetooth |
| Controller Type | Ring |
| Customer Reviews | 4.0 out of 5 stars 9,201 Reviews |
| Display Type | No Display |
| GPS Geotagging Functionality | GPS Via Smartphone |
| Human Interface Input | Buttons |
| Item Dimensions | 1.06 x 1.06 x 0.31 inches |
| Item Dimensions D x W x H | 0.31"D x 1.06"W x 0.31"H |
| Item Weight | 6.4 ounces |
| Manufacturer | Oura |
| Memory Storage Capacity | 16 MB |
| Metrics Measured | Sleep Duration, Heart Rate, Stress |
| Model Number | JZ90-54219-09 |
| Operating System | Android, iOS |
| Shape | Round |
| Special Feature | Heart Rate Monitor, Activity Tracker, Sleep Monitor |
| Style Name | Metallic |
| Supported Application | Fitness Tracker, Sleep Monitor, Voice Control, Time Display, Messages, Social Media, Heart Rate Monitor, Pedometer, Reminders, Weather, Calendar, Music Player |
| Supported Satellite Navigation System | GPS |
| Target Audience | Unisex Adults |
| Warranty Description | 1 Year Manufacturer |
| Warranty Type | Limited |
| Water Resistance Depth | 30 meters |
| Water Resistance Level | Water Resistant |
| Waterproof Rating | IP68 |
| Wearable Computer Type | Smart Ring |
| Wireless Communication Standard | Bluetooth |
| Wireless Compability | Bluetooth |
| Wireless Provider | Unlocked |
A**K
I love it!
I don't like wearing wrist watches, so having a smart ring is PERFECT for me! I love how durable it is, it's easy to clean, and the app that comes with it is GREAT! The tracking on this thing is flawless and it uses light sensors to track my vitals, so it doesn't even feel like a smart device, just a regular ring! It also charges very quickly, so if I'm using the bathroom or taking a shower at home, I just pop it on the charger for 10-15 minutes and it's good for a few days! I only do it daily just to establish a good routine, and I have forgotten before and let the battery get low, but still haven't had the power die on me yet! I can see it being an issue for lifting weights since it's coated in stainless still and a little bulky, but otherwise very comfortable for other forms of exercise! I can also see it being a problem because of the red and green light sensors at night, it might be disruptive to light sleepers in a dark room, but I just keep my hands under my blankets or pillows, and I sleep just fine! It doesn't light up all the time, just periodically throughout the night. If the tiny lights at night might bother you, you can probably put a thick sock or a glove over your hand at night to block the light. I'm personally not inconvenienced by it at night, and I like that I can't feel anything when it checks my vitals (heart rate, blood oxygen, temperature, just to name a few). I wound up subscribing to the app anually because I really liked how easy it was to set up and how thorough its analysis was for my overall health. UPDATE: Recently I noticed the ring was draining too fast between charges and I actually needed to charge it everyday! I reached out to customer service via the app, they asked a few questions, and shipped me another one immediately! It was refurbished, not brand new, but it works like new and I would never have known the difference if they didn't tell me! I keep the old one as a backup just in case since they said I don't need to send it back. I basically haven't stopped wearing the Oura ring since I put it on, and I've used it on long walks, swimming (fully submerged in water), and for general daily activities and it works great! I wash it with soap and water when I wash my hands and take it off to give it an.wxtra good wipe down before popping it on the charger or putting it back on!
A**R
Lasted 1 year
Was a comfortable , stylish ring and good health tracker but died after just over a year. Battery life deteriorated to 2 days but reported fully charged after 5-10mins on dock, and now it won't charge at all. Too expensive to replace annually on top of membership fee. I used the AI chatbot on the app, took only a few minutes of simple testing to prove it had failed and they instantly ordered a replacement free-of-charge (with a spare USB dock to boot), which arrived in 4 days. Amazing service!
J**.
Amazing data collection… but a very steep price and short life.
Note: This is a long term review, after owning the ring for 10 months. It disappoints me to have to give this a 1 star review, because when the ring works, it works. It’s very convenient, accurate, un-intrusive to wear, and gives you a ton of valuable data, especially related to your cardiovascular system. But, out of the blue about 10 months into my ownership, battery life has cratered, and even when it doesn’t run fully discharged, it has randomly started disconnecting, meaning it’s not harvesting the data that I expect and want it to, and even worse, without full days of data, it won’t build any trends, meaning the limited data it does collect is useless. Reading online it seems I am not the only person experiencing this disappointment. Oura’s customer service is non existent. I have yet to figure out how to get in contact with a human there. All their customer service is routed through “Finn” their AI assistant. After trying everything that “Finn” has recommended numerous times, and getting nowhere, it would be an understatement to say I am frustrated. One of “Finn’s” suggestions is to fully wipe the ring and app from your phone and reinstall it, and if that doesn’t work, the implication from the system is that it will then elevate it to a customer service rep. The issue with that is when you do that, a hard reset and reinstall, the record with “Finn” also seems to go with it, so the system will never engage a human, it comes across almost like it’s intentional firewall in their service. I am coming up on my 1 year membership renewal. I am at the point where I need to decide if I need to make the $72 annual investment again. I would gladly spend that again, but I’m not really looking at a $72 investment. Given my current ring performance, this means buying another ring. Between the membership and a new ring, with taxes, shipping, etc, etc, etc that’s a near $500 investment; and since it only made it 10 months, that really means it’s effectively closer to $600 a year. Battery powered wearables have a limited life; I went into this understanding that, but, I don’t think that after less than a year of usage, going from ~5 days of battery life and collecting non-stop data to less than 24 hours of life with random crashes is in any way acceptable. Apple or Garmin or Google would have mass recalls or replacements on their hands if their wearables behaved like this. Good health is priceless. The ring helped me tremendously in my fitness journey. I have lost over 65 lbs with its help. At this point, however, given I have hit and am maintaining my weight goal, and from my current experience as well as based on what I read from others online, I refuse to spend any more money with Oura, simply because of their poor customer service and poor product life. My final thoughts: the ring makes your fitness journey significantly easier. Data is king when you’re committed to self improvement. For that, I give it 5 stars; but if you buy one, understand that it most likely will not make it to a year without some sort of collection or battery issue. You have to decide for yourself if $500 for 10-ish months of data is a fair price to pay.
A**K
Best ring out there, pricey, no real customer support, touchy feely software.
Really it's a 4.5 stars from me because the software interface is so wordy & cumbersome to navigate. But this brings some science to your sleep. I'm an insomniac--just a night owl in an early bird world, but this ring really helps me improve my sleep. These are great rings. To me rings are superior to bracelets because I work with my hands & power tools so bracelets are out of the question. These are pricey, but good & offer a ton of colors. They offer a ton of sizes. I get it wet, although I take it off to charge when I bathe/shower. I also remove for dishwashing. It can get wet, but eventually that wears them & at the cost, I'm going to keep it as long as I can. I've gotten the stealth twice & love it's matte finish. It can scratch. You can buy thin tape covers if you're worried about that, or take it off for sanding & scrape potential wear. The sensors seem more sensitive from the Gen 3 to Gen 4--less hand falling asleep data during sleep. I switch which hand it's on in my sleep when I roll over most of the time. I started with Motiv ring (bought by Oura,) so I know how good software could be. The Oura software gets annoying--beginning with the subscription. Not cool, only offered monthly, not one time annual fees, uncool. Then there are the updates: they can stop your ring from uploading or syncing at all, so I suggest you stop new software downloads after 2 or 3 upgrades, and back up your data before any download. Why this is critical--I was getting heart surgery & lost ALL my data & neither I nor my doc was able to access it with my last ring, Gen 3. The AI assistant, like most AI these days, is a means for a company of offering ZERO assistance AND not having to pay anyone who might actually help you. The folks answering emails were helpful before the AI. The AI offers a useless loop. I filed tons of questions & complaints & it never escalated to being responded to by a person. Never helpful. Reddit is your only real customer service with Oura. The gen 4 has improvements to the ring: the batteries are NEVER what they claim, 8 days, no way. 5 & change for me. Although this one is lasting longer than my Gen 3 ever did. The sleep data is more sensitive & accurate with this ring. Some of my family calls it the "no duh ring" as in you wake feeling rough, & the ring tells you why--you barely slept. The software interface is a little silly. I don't want any adjectives. I'd just prefer pure data: numbers like REM, Deep Sleep, HR, HRV, RHR, Temp etc.. It's geared toward anxious folks who need cheerleading & advice; I don't want that. If you need that, you'll love this. The entire section on stress is useless to me & mischaracterizes some situations: like happy endorphins for stress; nope! Very few of us can do much about the stress we face, seeing the report is just annoying. Get rid of it. Or let us get rid of it & keep the features we want from that category. And hiding your temp in the readiness section, which is otherwise totally useless...annoying, Woof! I wish we could customize our categories & presentation so I just got #s, and not their numbers--they give you a score for your sleep, activity, HR, & Readiness. Not universal & metrics aren't available so they're as meaningless as their cheers or suggestions. I wish they listed more work outs. And you used to be able to track your heart rate live while exercising. Not anymore. Why not? It's so basic & people loved it. I want to get to a heart rate & hold it over time, increasingly, but don't get that choice now. Lastly if they made their algorithms public to medical institutions, they could be marketed as a tool for sleep studies & HR for cardiology. Either their algorithms are not up to snuff, or they're insecure.
S**R
Has helped me to improve my sleep
This is an expensive purchase for me. But it has been more than worth it. The aspect that I wanted from the ring is measuring my sleep patterns. I have insomnia and it reminds me that I need to stay in bed longer, and it lets me know what my deficit and sleep is. This has helped me to know why I am so tired all the time it has made quite a difference in my health.The charge lasts for a long time, which is nice. I do not have to charge it every night. I know that there are less expensive rings out there, but I went ahead and purchased this one based on word-of-mouth. And I am very happy that I did buy this particular brand.
A**E
I love my oura ring!
I’ve had my oura ring for quite a while now. I just hit my 6 month anniversary with it. COMFORT: I was worried it would be bulky on my finger and get in the way, but I honestly forget I’m even wearing it. I also really like the way it looks on my finger so that’s never been an issue for me. Honestly, sometimes when I take it off to charge it, I feel bare without it on! TRACKING: it automatically tracks my workouts. It can pick up when I’m doing what. For example, I do a lot of walking strength training, play softball, and play pickle ball and somehow it always knows which one I have done and will automatically ask if I have just completed whatever work out. I think it tracks nicely I’ve worn it while I’ve also worn my Apple Watch just to test if they were similar and they were the same as far as heart rate and calories burned. INSIGHTS: I included a snapshot of my homepage on the aura app. It tracks my stress throughout the day and recognizes when something’s not quite right. The most amazing thing I’ve seen with the ring so far is that it has told me I’m getting sick before I’ve even felt sick. DURABILITY: the ring is extremely durable. I do wear a cover on it and have not worn it without one since I’ve gotten it, but I have seen other peoples chip and wear down- just normal wear and tear. However, the covers I got prevent this and mine looks just as good as the day I got it. I hardly ever take my ring off and it still works just as perfect as it did the day I got it. I’ve even worn it in the shower and to the beach. Overall, I’m happy I got this ring. I’ve enjoyed it since I’ve gotten it. I did not rank it five stars because I do not love that you have to pay for a membership. Although it is just five dollars a month that can add up. But overall, if you were considering getting this, I do recommend it.
M**S
Smart Ring for the win!
I’ve been wearing the Oura Ring 4 every day, and what stands out most is how seamlessly it fits into my routine without me having to think about it. It’s comfortable enough that I forget it’s on, and the sleep insights have actually helped me notice patterns I didn’t realize were affecting how I feel the next day. The activity tracking feels more realistic than a smartwatch since it doesn’t nag me, but it still gives me a clear picture of how active I’ve been. Battery life has been solid—I only need to charge it every several days—and the gold finish looks more like a piece of jewelry than a gadget. It’s become one of those things I rely on quietly because it gives me useful info without adding any clutter or hassle.
D**N
No for long term use.
I was thrilled for the first 6 months I owned this ring. It worked amazingly well. Then I noticed the battery life dropping slowly over the next few months. After 8 months, the battery wouldn't last a day. I spoke to customer service and they happily replaced my ring with a refurbished one. Apparently battery life was an issue they knew about. My new ring once again was great for about 6 months, then the battery started to drain very quickly. I was informed they wouldn't replace it again so I limped along, charging it multiple times a day. I had 6 months left on my year subscription so I did the best I could. In the last week, it has stopped tracking my sleep and most of my movement. I gave it 3 stars because it did work well for a while. I'm not someone who needs the newest and shiniest gadgets, so I can't justify spending this much money (I bought the gold ring) on something that won't last or do the basic function. Back to my Apple Watch I guess.
D**A
Nice
Delivery took longer than expected, but i am happy with the ring. It does exactly what they advertise. Its a nice to have.
A**S
Top, je suis vraiment contente de mon achat.
Top, je suis vraiment contente de mon achat🤩
U**A
Najlepszy
Najlepszy tracker samopoczucia i dobrostanu
C**L
Great insights on sleep
I’ve only used it for a week so I haven’t gotten the full insights it can offer, but the Oura ring 4 has been great so far. I bought it primarily to track my sleep, and it’s fascinating to track the quality of my sleep each night.
T**A
Padrísimo…
Increíble gran compra …
Trustpilot
1 month ago
1 week ago