Oura Ring 4 - Rose Gold - Size 10 - Smart Ring - Unique Sizing, Not Standard US Ring Sizes - Size First - Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days of Battery Life
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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.
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Availability:
In Stock.
Arrives
Wednesday, Sep 24
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Color: Rose Gold
Size: 10
Features
- SIZE BEFORE YOU BUY - Oura Ring 4 sizes are different from standard ring sizes. Size yourself with the Oura Ring 4 Sizing Kit. For additional details, see From the brand section below
- OURA MEMBERSHIP - First month of membership is included with purchase, for new members only. Subscription is 5.99/mo afterwards. Or opt for the annual prepaid option for 69.99. Membership is tied to your account via the Oura App, not your physical ring
- ACCURACY - SMART SENSING - Oura tracks over 30 biometrics, 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
- 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
- HSA/FSA ELIGIBLE - We can accept HSA or FSA funds for the following: Oura Ring, Oura Ring Chargers
- 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 30 biometrics including sleep, readiness, activity, heart health, stress, metabolic health and women’s health. Oura Ring 4 quietly and comfortably monitors your health and with up to 8 days of battery life — you can forget it’s even on. Sleeker, smarter and more accurate than ever, Oura Ring 4 is made for you. Oura Ring 4 is FSA/HSA Eligible — we can accept FSA or HSA funds for the following: Oura Ring 4, additional chargers, and shipping. IMPORTANT: Size yourself with the Oura Ring 4 Sizing Kit before you buy — Oura Ring 4 is not US standard sizing, and finding the right size will result in the best experience possible. With an Oura Ring 4 Sizing Kit purchase, a credit will automatically be applied to your Oura Ring 4 at checkout.
Operating System: Proprietary OS
Special Feature: Activity Tracker
Connectivity Technology: Bluetooth
Wireless Communication Standard: Bluetooth
Battery Cell Composition: Lithium Polymer
GPS: No GPS
Shape: Round
Brand: OURA
Model Name: Oura Ring 4 - Rose Gold - Size 10 - Smart Ring | Size First with Oura Ring 4 Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days Battery Life See more
Color: Rose Gold
Product Dimensions: 1.06 x 1.06 x 0.31 inches
Item Weight: 6.4 ounces
Item model number: JZ90-54219-10
Batteries: 1 Lithium Polymer batteries required. (included)
OS: Proprietary OS
Connectivity technologies: Bluetooth
GPS: No GPS
Special features: Activity Tracker
Other display features: Wireless
Human Interface Input: Unknown
Color: Rose Gold
Whats in the box: Oura Ring 4, Oura Ring 4 Charger, USB Cable, Information Booklet, Quick Start Guide
Manufacturer: Oura
Date First Available: October 3, 2024
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Sep 24
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.
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Learn more about financing & leasing here.
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Top Amazon Reviews
Color: Rose Gold
Size: 8
I know the Oura Ring comes at a steep price but I truly think it is worth it. I have had it since February and I only ever take it off to charge it. The biggest con is that the rose gold coating has a few chips on the outer edges and I have scratched it up pretty good. I have put this ring through a lot though so I’m not that surprised. You can buy clear silicone “cases” for it but it dulled out the brightness of the color itself. I still get compliments on how pretty it is even though I have been rough with it. The first week wearing it was an adjustment. At first it felt heavy and bulky but after the second week I stopped noticing it. I got a size 8 and it’s the perfect fit and feels comfortable. It doesn’t ever slip off but it’s easy to remove. My main reason for getting the Oura Ring was to help me keep track of my cycles and ovulation. I love the app and everything it has to offer. Overall the quality is great and I recommend this ring to all of my family and friends.
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Reviewed in the United States on September 8, 2025 by Abbie Abbie
Color: Silver
Size: 7
I’m an Apple user, and the Oura Ring 4 has been the perfect addition to my setup. The design is sleek and comfortable — I barely notice I’m wearing it. What really makes it stand out, though, is how well it tracks sleep and overall recovery. The insights on sleep quality, readiness, and activity have helped me better understand my rest and how it connects to my daily strength and energy. The data feels accurate, and the app is clean and easy to use, syncing smoothly with my phone. If you’re already into health tracking, this is a fantastic companion to the Apple ecosystem. For me, it’s been a game-changer in monitoring my sleep and keeping a closer eye on my recovery.
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Reviewed in the United States on August 26, 2025 by 3D Universe
Color: Stealth
Size: 14
So far, I’m very happy with my Oura Ring. I’m honestly surprised by how accurate it is—it really does a great job tracking my health and daily patterns. It’s comfortable to wear, the battery life is solid, and it charges quickly. Since I’ve started using it, I’ve noticed improvements in my health habits. The only drawback is that it does scratch a bit easily, but I work in construction, so that’s to be expected. One small quirk is that when you’re watching TV or working at the computer, it might log it as a nap due to lack of movement. Thankfully, you can easily dismiss those entries if they’re incorrect. Overall, I’d recommend it to anyone who wants an easy and effective way to track their health.
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Reviewed in the United States on August 10, 2025 by Amazon Customer
Color: Sizing Kit
Size: Sizing Kit
Amazon, despite complaints, views the Ōura Ring Sizing Kit as the same or a similar item as the Ōura Ring 4, itself... thus, two DIFFERENT reviews AND ratings for two COMPLETELY DIFFERENT products. -------------- 1) THE ŌURA RING SIZING KIT / 5-Stars Ōura states that the Ring 4 sizes are NOT the same as traditional ring sizes. I did NOT break out my Ring Sizing Loops to determine the veracity of that statement because the cost, of the Ring 4 Sizer, on Amazon is applied as a credit towards the cost of an Ōura Ring 4 WHEN purchased via Amazon. I will say that there is perhaps a little difference, compared to traditional ring sizes, but I'm not sure that it's much because I ended up with the ring size that I thought would work. Interestingly enough, size 10 that I expected for the middle finger was a perfect fit for the Index finger, which is normally a traditional 9... so there is some difference in the sizing and I wholeheartedly recommend procuring the Ōura Ring 4 Sizer BEFORE purchasing the Ōura Ring 4. NOTE that the Ōura Ring 4 Sizer does not work for all Ōura Ring models, so anyone deciding to purchase a previous iteration of the Ōura Ring, due to cost decrease and/or a Sale, will need to utilize the correct Ōura Ring Sizer for the model ring chosen. If there is a question of Sale or Discount Pricing, due to the delay from checking ring sizes, then I suggest an online Chat with Amazon Customer Service representative to make sure that you can lock in any discounts to use after verifying the correct Ring size. FYI - Ōura recommends wearing the sizing ring on the finger that will bear the ring, in order to become accustomed to the ring size/feel and to see how well it fits throughout a normal day. I followed that advice and I believe that everyone should do the same. ---------------- 2) Ōura Ring 4 / 1-Star First, even with the ring sizing kit and wearing the sizer non-stop until the Ring 4 arrived, the size of the Ring 4 in only whole sizes proved inadequate. My hands clearly fluctuate enough in size to be an issue, regardless of the finger or hand that is used. Next, the heart rate (HR) was always available and showing in the app, signifying that the Ring 4 was measuring the HR, HOWEVER, the app called to show the graph of the HR for over two (2) weeks, meaning there was no history nor any assessment available. Next, the Sleep function, even with learning curve, seemed to function out of the box, HOWEVER, after the first recharge of the Ring 4, there was an issue with accurately recording start and stop points of Sleep AND eventually the app would show No Sleep Data AFTER uploading/updating UNTIL THE NEXT day. There was no event showing for sleep ALTHOUGH the Ring 4 clearly annotated the Start of the Sleep period the previous night. Next, even after more than three (3) weeks of use, the app has failed to graph the Blood Oxygen Saturation, in spite of showing the data observed and available to see at any given moment. Again, I find this to be very odd and indisputably useless to the user. Next, the App is full of "flash" or substance but in terms of a quick overall view of all the numbers, like most Apps, no such uncluttered view can be found. While the plethora of information and links is appreciated, the search to locate immediate data numbers across all items is tedious, frustrating and unappreciated. To provide an analogy, it's like having to read an entire book to search for and locate the Synopsis of the book. For those who aren't into books, then it's like watching a TV and THEN SEEING the Preview for the show that you just watched. I and most users seem to prefer a Table of Contents approach where the Raw Data is shown and then you can click to go to the Analysis, Assessment and Suggestions for that particular Biometric. In short, the App's interface is beautifully flashy and showy but about as useful up front as a Show Pony on a crop farm. That makes it overwhelming, even to those who are focused readers and moreso to the vast majority who are not. Finally, many details and assessments are NOT available for anywhere from four (4) weeks to three (3) or more months. While understandable, it makes it impossible to fully assess the personal value and utility of the Ring 4 in the 30-day period for returns. That means that the $400+ ring and the annual subscription fee is only acceptable for those with money to burn, so to speak, because all of the shortcomings or issues, even if expandable and temporary, outweigh the cost of what is actually a pretty doggone accurate piece of tech wear, resulting in the clear choice to return the ring. AND... there is one other issue to consider which is that if your hands swell, perhaps from work, or shrink, perhaps from weight loss, then your $400+ ring AND subscription become useless... until you purchase another Ōura Ring that does fit. Based on my research and experience, there are equally accurate smart fitness watches with solid Apps and reasonable insights and suggestions based on the assessment of the biometrics. Also, there is another smart ring on the market that appears to rival the Ōura Ring in accuracy, provides an seemingly identical App for all appearances seen, comes as an adjustable ring using the same high-end materials and sensor setup AND which additionally boasts being approved and classified as a Medical Grade Device, instead of a Consumer Grade Device. All of that at a far, far lower cost AND the same updates, assessments, insights and suggestions BUT with NO subscription fee. That being said, I am a Go/No-Go tester of products meaning things are either 5-star or 1-star with enough details for people to decide that my 1-star item might be good enough to be their 3- or 4-star item. The Ring 4 failed to make the grade for my needs nor was it able to justify keeping the ring to see if things improved or the money was worth the extended wait for certain observations, but it was remarkably accurate when comparing data to manual results, such as HR, SpO2, etc. There is no blood pressure data, for those in search of BP function. I am not sure that BP could be accurately obtained below the wrist at this point in technology, but maybe in the future. REMEMBER that when returning an Ōura Ring, you MUST also CANCEL the Ōura App Subscription as it is a separate financial issue from the purchase. The subscription is free for the first 30-days and a part of setting up your account before you are able to use the App, so it's an easy thing to forget. 3) Addendum -- there is a charging cable organizer with a carabineer that works GREAT for the Ōura Ring 4 charging station and cable that is available on Amazon AND IS HIGHLY RECOMMENDED. That is my next review and it will be 5-Stars. It was kind of a why-the-heck-not afterthought purchase that became an INSTANT 5-Star Should Have item as soon as I unpackaged it!!!!
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Reviewed in the United States on March 21, 2025 by Avid Reader
Color: Brushed Silver
Size: 14
I had the RingConn first generation fitness ring, and it was pretty good for the most part. It was an inaccurate in terms of recording steps and calories. it would usually record more than 1000 steps than my Apple Watch or my Garmin watch. I thought about getting the GEN two ring but I saw that they were in a lawsuit with Oura . So I decided to try the fourth generation or a ring and this is my assessment after about two weeks of using it. I find that it’s pretty accurate for recording steps and it does a decent job of recording your sleep at night. The pulse monitor can be iffy sometimes if you have atrial fibrillation or if you have cold hands or if you sleep in a way that moves the ring. However, the reason why I’m giving it four stars instead of five stars is that the ring does not have a great battery life. I have to admit I’m a little disappointed that the ring only gets a little more than two days before you have to charge it again. It’s not a dealbreaker because I can put it on the charger while I’m taking a shower or if I’m not doing something. But the battery life is probably the worst of any of these devices I’ve seen except for maybe the Apple Watch, which isn’t great either. Would I buy it again? I’m not sure, it’s not that much better than the RingConn ring but because RingConn is facing the possibility of being locked out from the US market, I can’t recommend them either. I’ll give it some more time. Still not sure if I’m going to keep it or not.
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Reviewed in the United States on July 22, 2025 by Don C Reedy Don C Reedy