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Oura - Ring 5 - Smart Ring - Size Before You Buy with OR5 Sizing Kit - Size 9 - Black - (2026)

Model: JZ90-61615-09
SKU: 6671310
Sold byBest Buy

Customers are saying

Customers are positive about the product's impressive battery life, sleek design, and comfortable fit. Users also frequently highlight the intuitive health tracking features and the lightweight, compact size as major benefits. While the overall performance meets most user needs, there have been very rare reports regarding occasional connectivity issues.

Generated by AI based on customer reviews.
Features
  • THE WORLD’S 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.

  • SIZING IS ESSENTIAL

    Oura Ring 5 uses unique sizing different from standard jewelry rings and other Oura Ring generations; use the Oura Ring 5 Sizing Kit to find your perfect fit before purchasing

  • EVERYDAY HEALTH SENSING

    Oura tracks over 50 health metrics, including sleep, activity, stress, heart health, metabolic health and women’s health metrics. Oura seamlessly integrates with over 40 apps including Natural Cycles, Strava, & more

  • 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 accuracy —all in Oura’s smallest form factor yet.

  • 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

  • 1 WEEK OF BATTERY LIFE

    With 6-9 days of battery life, you’ll 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 COMPATIBILITY

    You may be eligible for reimbursement on your Oura Ring purchase. You can submit your Best Buy confirmation email to your FSA or HSA provider as proof of purchase.

See all features
Specifications
  • Operating System Compatibility
    Apple iOS, Android
    App Compatible
    Yes
    Built-in Storage
    0 gigabytes
    Metrics Measured
    Activity vs. inactivity, Calories burned, Duration of exercise, Duration of sleep stages, Hours slept, Resting heart rate, Skin temperature
    Protective Qualities
    Water resistant, Dust resistant
    Maximum Depth of Water Resistance
    328 feet
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Reviews

Rating 0 out of 5 stars with 1681 reviews

0% would recommend to a friend
Customers are sayingCustomers are positive about the product's impressive battery life, sleek design, and comfortable fit. Users also frequently highlight the intuitive health tracking features and the lightweight, compact size as major benefits. While the overall performance meets most user needs, there have been very rare reports regarding occasional connectivity issues.
This summary was generated by AI based on customer reviews.
  • Rated 5 out of 5 stars

    Best purchase!!!

    I honestly didn’t think I was going to love my Oura Ring as much as I do. I bought it because I wanted to learn more about my health, especially my sleep and recovery, but it’s become something I look forward to checking every single morning. My favorite part is seeing how my body responds to my daily habits. It’s so interesting to see how things like exercise, stress, eating late, or getting a good night’s sleep actually affect my readiness. It has made me much more aware of my overall health, and I find myself making better choices because I can actually see the difference. I also love that it’s a ring instead of a watch. It’s comfortable, lightweight, and I honestly forget I’m wearing it most of the time. The battery lasts a long time, and the app is super easy to understand without feeling overwhelming. As someone who has a heart condition, I’ve become much more intentional about taking care of myself. While I know the Oura Ring isn’t a medical device, it has helped me pay closer attention to my body’s patterns and encouraged me to build healthier habits. That peace of mind and daily awareness have been incredibly valuable to me. This has easily become one of my favorite pieces of technology that I’ve ever owned. If you’re thinking about getting one, I would absolutely recommend it. It’s more than just a smart ring. It’s something that motivates me every day to take better care of myself.

    This review is from Oura - Ring 5 - Smart Ring - Size Before You Buy with OR5 Sizing Kit - Size 11 - Black - (2026)

    Posted by Josy

  • Rated 5 out of 5 stars

    Perfect Combination of Beauty and Technology!

    I absolutely love this ring! It has exceeded all of my expectations. My husband gave it to me for my birthday, and I was very happy. The new model looks so much better than the previous one. It is thinner, more elegant,and much more comfortable to wear. It doesn’t just look like a smart ring-it looks like a beautiful piece of jewelry. I chose the color that I like the most, and it is absolutely gorgeous. I receive compliments on it all the time. The ring tracks my sleep, heart rate, activity, and other health metrics very accurately. The app is easy to use,and the insights have helped me pay more attention to my heath and improve my daily habits.The battery life is excellent,and I barely notice that I’m wearing it because it is so lightweight and comfortable. It you’re thinking about buying the new Oura Ring, I highly recommend it. It combines beautiful design with excellent technology, and I couldn’t be happier with my purchase! The slimmer design is my favorite improvement over the previous generation. It feels more refined and feminine while keeping all the great features.

    This review is from Oura - Ring 5 - Smart Ring - Size Before You Buy with OR5 Sizing Kit - Size 9 - Brushed Silver - (2026)

    Posted by Tatiana

  • Rated 5 out of 5 stars

    In LOVE with my Oura ring!

    I am absolutely in love with the Oura ring. The recent model has a nice slim design, battery last for almost a week. The tracking abilities of what you can monitor are amazing I was able to eliminate my period tracker by using this too. It’s a piece of mind on the finger couldn’t recommend this anymore, best purchase this year thus far! If I have any feedback, it would just be about the finish - I originally bought the brushed silver, and it almost had a blue undertone to it which I didn’t like and swapped it out for the silver, but the silver has more of a dark/gray look rather than a true bright silver ring. Still giving this five stars, but there is room for improvement on the color finish of the ring.

    This review is from Oura - Ring 5 - Smart Ring - Size Before You Buy with OR5 Sizing Kit - Size 10 - Silver - (2026)

    Posted by ElizabethK

  • Rated 5 out of 5 stars

    perfect

    This ring is great for tracking your body and how it works, and has helped me change habits and focus on things i didn’t know needs focusing on. the ring itself is sturdy, stylish, and is comfortable to wear, i forget it’s on a lot. the app is great too, and i love everything you’re able to see inside the app. enjoy the ladybug on my hand lol

    This review is from Oura - Ring 5 - Smart Ring - Size Before You Buy with OR5 Sizing Kit - Size 8 - Silver - (2026)

    Posted by kare

  • Rated 5 out of 5 stars

    The best health tracker I've ever owned

    I’m so happy I decided to get the Oura Ring. It has completely changed the way I understand my sleep and daily recovery. The app is beautiful, easy to use, and provides detailed insights that are actually helpful. I love tracking my sleep, readiness, stress levels, heart rate, and activity all in one place. The battery lasts a long time, the ring is comfortable to wear day and night, and I often forget I even have it on. The data has been very accurate and has helped me build healthier habits. I highly recommend it to anyone who wants to better understand their health and wellness.

    This review is from Oura - Ring 5 - Smart Ring - Size Before You Buy with OR5 Sizing Kit - Size 9 - Deep Rose - (2026)

    Posted by TETIANAK

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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 6-9 days of battery life you can even forget it’s on. No more compromises when it comes to tracking your health. 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, you will receive a $10 Best Buy gift card to use towards your Oura Ring 5 purchase.

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The Oura Ring 5 Sizing Kit allows for you and those around you to find the ideal fit before purchasing. With an Oura Ring 5 Sizing Kit purchase, you will receive a $10 Best Buy gift card to use towards your Oura Ring 5 purchase. A properly fitting Oura Ring 5 will result in the highest possible data accuracy, comfort, and overall experience. Oura Ring 5 sizes are slightly different from standard ring sizes and other Oura Ring generations. It’s important to size yourself and follow sizing instructions. Oura Ring 5 works on all fingers and can be worn on either hand. For optimal accuracy, we recommend wearing on your index, middle, or ring finger.

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Pros for Oura - Ring 5 - Smart Ring - Size Before You Buy with OR5 Sizing Kit - Size 9 - Black - (2026)
Battery Life, Design, Comfort, Health Tracking, SizeSizing AccuracyBattery Life, Design, Comfort, Health Tracking, SizeBattery Life, Design, Comfort, Health Tracking, Size
Cons for Oura - Ring 5 - Smart Ring - Size Before You Buy with OR5 Sizing Kit - Size 9 - Black - (2026)
ConnectivityThere were no cons for this productConnectivityConnectivity

Specs

Questions & Answers
  • I have a oura ring 4 and i have the 2 year warranty. If i wanted to get the oura ring 5 since my oura ring 4 is scratched is there a way to exchange that or how does that work?

    It honestly depends on your bestbuy staff. Some may take it back and charge a restocking fee to return the item, and refund you. Others will only offer to give you the same ring at no cost since you are on a 2 year warranty. Technically it only covers the replacement of your Ring 4 with an identical ring 4 but it doesn’t hurt to try! Worst they can say is no.

    Answered by Joesap
  • I put on the sizer and it felt good but my fingers swell during the nite. Should I stay with the size that feels right during the day?

    I would wear the sizer over night to make sure it’s comfortable and safe to remove the next morning. Last thing you want is to purchase it, it get stuck and then have to cut it off!

    Answered by ANIKAR
  • Is it same size as your ring finger

    Yes. You want it to fit snug so it gets good readings.

    Answered by BRIANL
  • The ring comes with the charger ?

    Yes

    Answered by SHANNONM
  • can i check my sugar with this

    No

    Answered by SHANNONM
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