Buy Now, Pay Later
As low as
/ mo
Learn more
- – Up to 36-month term if approved
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
Free shipping on this product
30-day returns
Learn more
FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Sep 6 – Sep 7
Recently Viewed
Style: Metallic
Color: Silver
Size: 9
Features
- ACCURACY - SMART SENSING - Oura tracks over 50 health metrics, including sleep, activity, stress, heart health, and womens health metrics. Oura Ring 4 is powered by Smart Sensing, which adapts to you delivering accurate, continuous data, day and night
- LONG LASTING BATTERY - With up to 8 days of battery life, no screens and no vibrations, Oura Ring 4 allows you to focus on the present. From a workout to a night out youre free to forget its on. Until you start getting compliments
- OURA MEMBERSHIP - First month of membership is included with purchase, for new members only. Subscription is 5.99/mo afterwards. Membership is tied to your account via the Oura App, not your physical ring
- HSA/FSA ELIGIBLE - We can accept HSA or FSA funds for the following: Oura Ring, additional chargers, and shipping
- DESIGNED FOR 24/7 WEAR - The updated design of the Oura Ring 4 is more comfortable, fits better than ever, and is water resistant. The first all-titanium smart ring combines exceptional durability with a gentle touch, even for sensitive skin
- SYNC WITH YOUR FAVORITE APPS - Compatible with iOS and Android Oura seamlessly integrates with over 40 apps including Apple Health, Google Health Connect, Natural Cycles, Flo, Strava, & more
- LOOKING FOR THE BEST HEALTH TRACKER? - Whether youre searching for a sleep ring or fitness ring, Oura Ring 4 is for you this revolutionary smart ring that allows you to discreetly track your sleep, activity, recovery and stress in style
Description
Introducing Oura Ring 4: the latest evolution of the revolutionary smart ring. Oura Ring 4 brings you closer to what matters most — your health. The updated all-titanium design is powered by Smart Sensing, a new sensing platform that doesn’t just measure your biometrics, it adapts to you, providing insights into over 50 health metrics including sleep, readiness, activity, heart health, stress, metabolic health, and women’s health. Oura Ring quietly and comfortably monitors your health and with 5 to 8 days of battery life — you can forget it’s even on. With multi-ring support, change Oura Ring 4 styles as easily as changing your outfit. If you have two or more Oura Ring 4 styles, you can now switch easily between different finishes in the Oura App.
Operating System: i_os, android
Special Feature: Activity Tracker, Cycle Tracking, Daily Workout Memory, Lightweight
Battery Capacity: 22
Connectivity Technology: Bluetooth
Wireless Communication Standard: Bluetooth
Battery Cell Composition: Lithium Polymer
GPS: No GPS
Shape: Round
Brand: OURA
Model Name: Oura Ring 4
Operating System: i_os, android
Additional Features: Activity Tracker, Cycle Tracking, Daily Workout Memory, Lightweight
GPS Geotagging Functionality: No GPS
Band Material Type: Titanium
Case Material Type: Titanium
Water Resistance Level: Water Resistant
Sport Type: Fitness, swimming
Human Interface Input: Buttons
Supported Application: Fitness Tracker
Water Resistance Depth: 100 meters
Controller Type: Ring
Metrics Measured: Body Temperature, Menstrual Cycle, Sleep Duration, Stress
Closure Type: Slip On
Shape: Round
Style Name: Metallic
Color: Silver
Band Color: Silver
Connectivity Technology: Bluetooth
Wireless Compability: Bluetooth
Communication Feature: Bluetooth
Item Weight: 0.18 kg
Item Dimensions: 1.02 x 1.02 x 0.28 inches
Warranty Type: Standard/Full
Waterproof Rating: IP68
Brand: OURA
Model Name: Oura Ring 4
Target Audience: Unisex Adults
Age Range Description: Adult
Model Number: JZ90-54217-09
Built-In Media: Oura Ring 4, Oura Ring 4 Charger, USB Cable, Information Booklet, Quick Start Guide
Warranty Description: 1 Year Manufacturer
Wearable Computer Type: Smart Ring
Manufacturer: Oura
Battery Capacity: 22
Battery Cell Type: Lithium Polymer
Battery Average Life: 5 days
Battery Charge Time: 80 minutes
Display Type: No Display
Compatible Devices: Smartphone
Compatible Phone Models: Android Devices, iOS Devices
RAM Memory Installed: 512 KB
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sep 6 – Sep 7
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- Zip Pay in 4
- Financing through Apple Pay
- Financing through Google Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
Style: Metallic
Color: Silver
Size: 8
MI have only been using the Oura Ring 4 for about four months, and it has completely changed the way I understand my body. As a woman, the cycle tracking alone has been incredibly valuable. Being able to see how different phases of my cycle affect my sleep, recovery, stress levels, energy, and overall readiness has helped me make much better decisions about work, exercise, and self-care. Instead of wondering why I feel different from one week to the next, I finally have data that helps me understand what is happening and adjust accordingly. The sleep tracking has been especially eye-opening. I thought I had a decent understanding of my sleep habits, but Oura showed me patterns I would never have noticed on my own. The stress tracking has also helped me become much more aware of when I need to slow down, recover, or prioritize rest before I burn out. I previously used RingConn, and in my experience Oura is on a completely different level. The insights are more meaningful, the app is more polished, and the overall experience feels much more focused on helping you understand and improve your health rather than simply collecting data. I know some people hesitate because of the subscription, but honestly, I think it is absolutely worth it. The value comes from the quality of the insights and the way the information is presented. It has helped me make tangible changes to my daily habits and overall well-being. Only four months in, and I already recommend Oura to all of my friends. It is one of the few health and wellness purchases that has genuinely exceeded my expectations. If you are looking for a wearable that helps you better understand your sleep, stress, recovery, and cycle health, I cannot recommend the Oura Ring 4 highly enough.
...
show more
Reviewed in the United States on June 24, 2026 by Grace W.
Style: Metallic
Color: Gold
Size: 8
I have used it for a year now and its a great item to measure your health overall. Battery last 5-6 days average, helpful to prevent burnouts and perform better in your daily basis, comfortable to wear, it doesn't get scratched easy, and it's kinda stylish. Downsides? Its expensive, you need a subscription, and sometimes when software updates loses accuracy. Still this item it may be the best on the market.
...
show more
Reviewed in the United States on July 21, 2026 by Pamela Duque
Style: Metallic
Color: Silver
Size: 12
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.
...
show more
Reviewed in the United States on September 13, 2025 by Josh A.
Style: Metallic
Color: Silver
Size: 8
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.
...
show more
Reviewed in the United States on August 11, 2026 by Scott Alexander
Style: Metallic
Color: Brushed Silver
Size: 8
Update: Oura ran a diagnostic on my ring and are sending me a replacement. I love the information this ring provides. I focus on sleep, steps, and stress levels. My issue with the ring is the lack of life span. At the cost of this device, I would expect it to work more than a year. I took very good care of my ring, but it started needing daily charging at about 10 months, and by the end of 1 year I was having to charge it twice a day to get the information I wanted on my vacation.
...
show more
Reviewed in the United States on July 31, 2026 by Ashley Bobel
Style: Metallic
Color: Rose Gold
Size: 8
I really like my Oura ring- down 1 star because of the lack of battery life. I have had it for 1 year and for the first 4-5 months it would last 7-9 days without a charge. Then months 6-7 it would go 5-7 days but the last couple months it only lasts 24-48 hours. However, I love the sleep tracking and the heart rate monitoring features. I like the fit on my finger and that it just looks like another ring
...
show more
Reviewed in the United States on August 3, 2026 by Emily
Style: Metallic
Color: Stealth
Size: 11
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.
...
show more
Reviewed in the United States on July 7, 2026 by a k
Style: Metallic
Color: Silver
Size: 6
*LONG TERM REVIEW* I bought this ring February 2025 and still wear it religiously. Someone else said the same thing, when the ring works, it works; but it starts to malfunction over time. This past month the ring hasn’t been able to hold a full charge, randomly disconnects, and also malfunctions (ex: the ring can have a full charge before going to bed, when you wake up the ring says it disconnected or no power, only to find out when you put the ring on the charger it had full power the entire night. You’d think for the price you pay there would be more tech support or any trade in opportunities.. wrong. I understand if the ring malfunctions because of constant contact or miscare of the ring, however I don’t think the ring should have this many issues if i’m just wearing it while working at my desk, going on a walk, or sleeping. I don’t even wear it while doing housework or even sport activities (which i should be able to do without it malfunctioning over time.) If you’re going to get the ring i’d highly consider getting the warranty if the warranty includes idemnity for situations like mine as i’ve noticed many others have similar issues. If i was writing the review a couple months into having the ring id give it 5 stars, however the longevity of the ring is questionable. Honestly the entire reason I came back a year later to write this review is because i’m annoyed my ring can’t even track my sleep score consistently. Buy it or look for dupes, but if you do atleast look into the warranty and what it can cover.
...
show more
Reviewed in the United States on June 23, 2026 by ky