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OURA

Oura Ring 4 - Rose Gold - Size 7 - Size Before You Buy

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$349.00 Why this price?
Holiday Deal · 30% off was $499.00

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This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2026

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Color: Rose Gold


Size: 7


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 manufacturer 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 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.
  • 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. Sleeker, smarter and more accurate than ever, Oura Ring 4 is made for you. Oura Ring is FSA/HSA Eligible — we can accept FSA or HSA funds for the following: Oura Ring, additional chargers, and shipping. IMPORTANT: Size yourself with the Oura Ring Sizing Kit before you buy — Oura Rings are not US standard sizing, and finding the right size will result in the best experience possible. With a sizing kit purchase, a credit will automatically be applied to your Oura Ring at checkout.

Special Feature: Activity Tracker, Cycle Tracking, Daily Workout Memory, Lightweight


Connectivity Technology: Bluetooth


Wireless Communication Standard: Bluetooth


Battery Cell Composition: Lithium Polymer


GPS: GPS Via Smartphone


Shape: Round


Brand: OURA


Style: Minimalist


Color: Rose Gold


Target Audience: Unisex Adults


Product Dimensions: 0.98 x 0.98 x 0.31 inches


Item Weight: 6.4 ounces


Item model number: JZ90-54219-07


Batteries: 1 Lithium Polymer batteries required. (included)


Connectivity technologies: Bluetooth


GPS: GPS Via Smartphone


Special features: Activity Tracker, Cycle Tracking, Daily Workout Memory, Lightweight


Other display features: Wireless


Human Interface Input: Touchscreen


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

This product is currently out of stock. Please check back later for shipping info.

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.

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Top Amazon Reviews

    • Approve
Color: Silver Size: 10
The fit for this worked out well. I used a sizer at Best Buy. This has been very helpful for me to learn more about my sleeping habits. I’ve been able to make adjustments that have really changed my energy levels. It’s also been very validating on days when I feel exhausted and my ring reflect this back to me. The charge for me is about 3 days. I’m tracking so many interesting things like how caffeine impacts my stress, or reading before bed impacts my sleep. I’m getting clear on my menstrual cycle which has been hard due to my autoimmune disease, It’s expensive and I think I’m getting my moneys worth. ... show more
Reviewed in the United States on November 17, 2025 by Katherine
    • Highly recommend if purchasing an Oura Ring — measure twice, buy once
Color: Sizing Kit Size: 4
If you’re planning to buy the Oura Ring 4, this sizing kit is almost essential. Here’s my straight-talk review: What I liked: The sizing kit gives you multiple trial rings (sizes 4-15) to test your finger and fit. Best Buy +2 Android Authority +2 It helps you understand that Oura’s ring sizing doesn't match standard ring sizes — many users found they needed a different size than their usual jewelry ring. The fit matters a lot: the company says a proper fit leads to better comfort and data accuracy. You typically receive a credit toward your actual ring purchase, so the sizing kit effectively reduces risk. One small caveat: The sizing rings are made of plastic and feel different than the actual titanium ring. Some people notice differences in how the plastic kit fits versus the final product. You’ll need to wear the sizing ring for at least 24 hours (and ideally through normal daily activities) to check comfort, swelling, finger variation. Bottom line: If you’re buying the Oura Ring 4, get the sizing kit first. It takes away a lot of guesswork and prevents the hassle of ordering a ring that’s too loose or too tight. Measure your finger, test it over a day or two, pick the best fit — then buy the actual ring. This way your investment pays off and you get the full benefit of the ring. ... show more
Reviewed in the United States on October 21, 2025 by L. Bell
    • The sizing kit is a must!
Color: Sizing Kit Size: 4
I am so glad that I got the sizing kit, rather than going by my normal ring size, or the size I thought would work when I tried it on a display in the store. Since you should wear your Oura Ring pretty much any time it’s not charging it’s super important to wear your sizing ring for at least 24 hours to make sure the fit is right. I don’t wear rings very often and no was surprised at how differently the rings fit during the day and after sleeping due to natural swelling. I wasn’t quite sure which finger I wanted to wear my Oura Ring on once it came it, so I actually wore one sizer on my index finger and one on my middle finger so I could really get a feel for what felt best. After wearing the sizes for a couple of days and switching the sizes a couple of times I landed on a size 10 on my middle finger and it is perfect. Once I got my ring I realized that it does feel just slightly looser than the sizer ring, so I will say if you are between sizes go with the smaller of the two. You want the ring to be snug to get accurate readings. ... show more
Reviewed in the United States on October 21, 2025 by Tori and Bambino
    • 1) Ōura Ring Sizing Kit / 2) Ōura Ring 4 Reviews / 3) Addendum Item
Color: Sizing Kit Size: 4
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!!!! ... show more
Reviewed in the United States on March 21, 2025 by Avid Reader
    • super worth it purchase for cycle tracking
Color: Silver Size: 7
amazing for tracking your cycle with natural cycles without having to check your basal body temp with a thermometer !! it literally checks your temp all night ! it was super easy to set up, but it does get scratched easily so i wiuld not say that it is super durable. i personally dont think the scratches are that noticible but they are deffinitly are there ! it is really comfortable and you stop even noticing it is there. it looks much better than a smart watch but it is obviously not like a beautiful ring or something ya know its a plain silver looking thick band. ... show more
Reviewed in the United States on November 9, 2025 by Alex

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