Oura Ring 5 - Black - Size 12 - World’s Smallest Smart Ring - Sleep, Activity, Women’s Health, AI Advisor, 1 Week of Battery Life, Size Before You Buy, Android & iOS Compatible
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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.
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Availability:
In Stock.
Arrives
Monday, Sep 7
Recently Viewed
Style: Ring
Size: 12
Color: Black
Features
- THE WORLDS SMALLEST SMART RING - 40% smaller than the previous generation, Oura Ring 5 is thinner, lighter and smaller than ever. The updated all-titanium design is more scratch-resistant and comfortable than ever
- EVERYDAY HEALTH SENSING - Oura tracks over 50 health metrics, including sleep, activity, stress, heart health, metabolic health and womens health metrics. Oura seamlessly integrates with over 40 apps including Natural Cycles, Strava, & more
- 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
- REBUILT FOR GREATER ACCURACY - Oura Ring 5 has been re-engineered and reconfigured, providing more precise personal health data. Larger, smarter sensors bring research-grade accuracyall in Ouras smallest form factor yet
- 6-9 DAYS OF BATTERY LIFE - With 6-9 days of battery life, youll never miss a night of data
- DIVE DEEPER WITH AI - Oura Advisor provides sound guidance as you make moves toward more sustained energy levels, better sleep, a healthy weight, and so many other health benefits
- HSA/FSA ELIGIBLE - We can accept HSA or FSA funds for the following: Oura Ring, additional chargers, and shipping
Description
Introducing the world’s smallest smart ring: Oura Ring 5, built with even more sensing power than previous generations. 40% smaller and ultra lightweight, Oura Ring 5 fits seamlessly in with your life and your style. The updated all- titanium design is more scratch-resistant and comfortable than ever, Oura Ring 5 delivers 50+ health metrics with research-grade accuracy. With 1 week of battery life you can even forget it’s on. No more compromises when it comes to tracking your health. Oura Ring 5 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 5 Sizing Kit before you buy. Oura Rings are not US standard sizing and other Oura Ring generations, and finding the right size will result in the best experience possible. With an Oura Ring 5 Sizing Kit purchase, an Amazon credit will automatically be applied to your Oura Ring 5 at checkout.
Special Feature: Pedometer
Wireless Communication Standard: Bluetooth
Battery Cell Composition: Lithium Polymer
Shape: Round
Brand: OURA
Style: Ring
Color: Black
Compatible Devices: Smartphone
Display Type: No Display
Compatible Phone Models: Compatible with iOS and Android devices.
Additional Features: Pedometer
Water Resistance Level: Water Resistant
Human Interface Input: Unknown
Supported Application: Oura App
Metrics Measured: Heart Rate Monitor
Shape: Round
Style Name: Ring
Color: Black
Battery Cell Type: Lithium Polymer
Display Type: No Display
Item Weight: 0.06 kg
Brand: OURA
Model Number: JZ90-61615-12
Built-In Media: Charging Cable, Information Booklet, Oura Ring 5, Oura Ring 5 Charger, Quick Start Guide
Warranty Description: 2 Year Limited Manufacturer
Wearable Computer Type: Smart Ring
Manufacturer: Oura
Wireless Compability: Bluetooth
Compatible Devices: Smartphone
Compatible Phone Models: Compatible with iOS and Android devices.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, 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.
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- Zip Pay in 4
- Financing through Apple Pay
- Financing through Google Pay
Learn more about financing & leasing here.
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Top Amazon Reviews
Style: Ring
Size: 6
Color: Brushed Silver
Here’s a smoother, more natural version of your review: I’ve been really impressed with this ring overall. It’s extremely lightweight and comfortable to wear, even all day and overnight. The sleep tracking has been very accurate. I’ve used Apple Health for years, and since day one the ring has matched my usual sleep patterns almost perfectly. Compared to my Apple Watch, it’s usually only off by a few minutes, especially during the first week. Setting it up was incredibly fast and easy. Connecting it to my phone took only a few minutes, and syncing with both Apple Health and Strava was seamless. I also find it much more comfortable than the Oura Ring 4. I have small hands and fingers, so the Ring 5 fits me much better. As a healthcare worker who wears gloves constantly, it’s also much easier to use while working. The only real downside for me is the battery life. It doesn’t last a full week. Because I’m very active, I typically get about four days on a charge. I usually top it off while I’m showering, which helps. I also have one of the smallest ring sizes, so I think that contributes to the shorter battery life. From what I’ve read, the larger ring sizes tend to have better battery life. I chose the brushed silver finish because I wanted something that would hide scratches well, and for the most part it does. However, I accidentally scraped it against tile, and that scratch has remained, which is a little disappointing. Overall, I think it’s a great health and lifestyle tracker for everyday use. It does an excellent job tracking sleep and daily activity, and I enjoy having goals to work toward because they keep me motivated to stay healthy. I still use my Apple Watch for more intense fitness tracking, like running, but the ring has become a great companion for monitoring my overall health.
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Reviewed in the United States on July 28, 2026 by Henna
Style: Ring
Size: 12
Color: Stealth
I had the Oura Ring 4 and after almost a year and a half, it started to not hold a charge for more than a couple of days. I ordered the sizing kit and then ordered the ring in size 12 Stealth (keep in mind the sizing on the Oura Ring 5 is different than it is for the Oura Ring 4, so if you're upgrading, you do need to order the sizing kit (which is credited towards the purchase of the Oura 5). The new ring seems more accurate and precise, it's much smaller which makes it more comfortable than the 4. I also feel that the all titanium construction is more robust than the last version. I bought the Stealth version and after a couple of weeks it's showing no signs of any scratches. I also think it looks better, I wore the 4 on my right index finger and that's the same finger I'm wearing the 5 on. It looks better and, again, is more comfortable. This is an expensive solution for a ring but it's discreet, has seems to be able to read more vitals, and is more accurate. It seems to communicate with the app on my iPhone with more frequent updates. The battery life is fantastic, I got seven full days on a charge. I'm about to take a two week road trip and I also bought the charging case I'm pretty confident that I'll be covered.
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Reviewed in the United States on July 2, 2026 by MHD
Style: Ring
Size: 11
Color: Silver
I bought this because I saw that it was slimmer, and not as bulky, I could not be more happy with this purchase! I used to have the Ultrahuman air ring and the Oura ring is definitely better in my opinion. I loved my Ultrahuman but after about a year I stopped wearing it because it was just uncomfortable and I had to get a replacement about 7 months after purchasing it because it wouldn’t charge or connect to the app. The only complaint I have is that it sometimes takes a while to connect to the app (about 3 minutes or so) when you open the app. It does still scratch but it’s not super noticeable. I love the silver color because it just looks like normal jewelry. I also like that it connects to the cycle tracking with natural cycles, makes it easier to understand what my body is doing. I haven’t had any major issues with it so far and I’m hoping I don’t because I do love this ring! I had to help my fiancé work on a customer vehicle and it held up while holding heavy parts. Definitely worth the money, you get what you pay for in my opinion.
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Reviewed in the United States on June 27, 2026 by Kaylee C.
Style: Ring
Size: 8
Color: Black
Oura completely knocked it out of the park with the Ring 5. I have been looking for comprehensive health tracking that doesn't feel obtrusive, and this miniaturized design is exactly what was needed. Here is why I highly recommend the size 8 Black model: Barely-There Comfort: They aren't kidding about it being the "world's smallest." At 40% slimmer than previous generations, it makes a massive difference in daily wear. I can actually wear it comfortably while weightlifting without it digging into my fingers or throwing off my grip. Incredible Durability: The black titanium finish is sleek, and the upgraded PVD coating is surprisingly tough. Despite heavy daily wear and regular gym sessions, it has held up flawlessly without picking up frustrating scratches. Pinpoint Accuracy: The new 12-pathway sensors are incredibly precise. Whether it is tracking my heart rate on the treadmill or breaking down my overnight sleep stages and daily stress levels, the data is consistent and genuinely useful for optimizing recovery. Set-It-and-Forget-It Battery: Getting 6 to 9 days of battery life out of something this tiny is fantastic. It charges quickly, meaning I never have to worry about missing overnight sleep data because it died on my finger. If you want precise health and recovery insights without the distraction of a bulky wrist wearable, this is hands-down the best device available. The smaller form factor is an absolute game-changer!
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Reviewed in the United States on June 6, 2026 by GeekTechReview
Style: Ring
Size: 11
Color: Stealth
I recently upgraded from the Oura Ring 4 to the Oura Ring 5, and the difference is immediately noticeable. The design feels more refined and modern, with a sleek finish that looks great whether I am at work or relaxing at home. It has a subtle, premium look that does not feel bulky or distracting. One of the first things I appreciated was the packaging. It is clear that more thought went into making it eco friendly, which adds to the overall positive experience. It feels good to see a brand prioritize sustainability while still delivering a high quality product presentation. The ring itself is smaller and more comfortable than the previous version. I barely notice I am wearing it throughout the day, and it sits more naturally on my finger. That improvement alone made the upgrade worth it for me. The fit and feel are excellent, especially if you value something lightweight and unobtrusive. Overall, I am extremely happy with this upgrade. The combination of improved design, comfort, and thoughtful packaging makes the Oura Ring 5 feel like a meaningful step forward. It is one of those upgrades that just makes sense once you experience it.
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Reviewed in the United States on June 5, 2026 by Sven
Style: Ring
Size: 7
Color: Stealth
I was very impressed with this ring. It’s well made, durable, and comfortable to wear. The sleep tracking, step counting, and heart rate monitoring are all accurate and consistent. I chose the Stealth color, and it looks sleek, low-profile, and goes with everything. My only complaint is the price. The ring itself is expensive, and the annual membership has increased from $59.99 to $69.99. Despite the added cost, it’s still an excellent health tracker if you’re looking for accurate insights and don’t mind paying for the subscription.
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Reviewed in the United States on July 24, 2026 by TT
Style: Ring
Size: 13
Color: Black
Love this ring. I had the gen4 and this one is smaller and so far the battery has lasted almost a week. I’ve had each generation and needed to change sizes 3 times so I got the gen5. The analytic.s are crazy and sleep data is off the charts useful. Seems just as strong and durable as the others and the fit is perfect. The only thing I don’t like is the “notch” isn’t like prior versions it’s a little rough spot that’s so hard to find. Other than that I’m loving it.
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Reviewed in the United States on June 18, 2026 by Homey
Style: Ring
Size: 7
Color: Silver
This is my third Oura Ring, and I’ve been wearing Oura for over six years. This newest model is much smaller, lighter, and more comfortable to wear. So far, I haven’t experienced any data issues with the new release. Unfortunately, the photo doesn’t really show the size difference. The battery life isn’t amazing, but it’s acceptable for everything the ring tracks, and it charges quickly. After wearing it for about a week, I’ve found I need to charge it every three days, which is a little more often than Oura advertises. I’d love to see Oura offer this smaller size in the beautiful ceramic colors they released for a short time. It does an excellent job tracking steps, sleep, and heart rate. If you’re thinking about getting one, I highly recommend it. Mine stays on my finger just like my wedding ring… it rarely comes off.
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Reviewed in the United States on July 15, 2026 by Shannon R