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- – 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, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
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30-day returns
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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.
View our full returns policy here.
Availability:
In Stock.
Arrives
Sunday, Mar 22
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Color: M - Brushed Silver
Size: 6
Features
- 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
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: 192
Connectivity Technology: Bluetooth
Wireless Communication Standard: Bluetooth
Battery Cell Composition: Lithium Polymer
GPS: GPS Via Smartphone
Shape: Round
Brand: OURA
Model Name: JZ90
Product Dimensions: 1.06 x 1.06 x 0.31 inches
Item Weight: 6.3 ounces
Item model number: JZ90-54220-06
Batteries: 1 Lithium Polymer batteries required. (included)
Date First Available: October 3, 2024
Manufacturer: Oura
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Mar 22
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
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
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Top Amazon Reviews
Color: C - Cloud
Size: 8
I wasn’t sure I wanted the Oura Ring 4 Ceramic, but just 48 hours in, I’m so glad my husband got this for me for Christmas. It’s already become something I check daily. Comfort & Design: The ring is incredibly comfortable and lightweight. I honestly forget I’m wearing it, even while sleeping. The ceramic finish looks sleek and modern and feels very high-end. Insightful Tracking: The data is fascinating and easy to understand. Sleep, readiness, and activity insights feel meaningful and helpful—not overwhelming. It’s already made me more aware of my sleep quality and recovery. Easy to Wear, Easy to Use: I love that it doesn’t feel bulky like a watch and works seamlessly in the background. The app is intuitive and well designed. Quick Buy-In: I expected this to be something I’d have to “get used to,” but instead I was hooked almost immediately. Within two days, I understood the value. Overall Impression: If you’re on the fence like I was, this might surprise you. Comfortable, insightful, and beautifully designed—it’s a gift I didn’t know I needed but now wouldn’t want to be without.
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Reviewed in the United States on December 30, 2025 by DLynn
Color: Gifting Sizing kit
Size: Gifting Sizing Kit
I recently used the Oura Ring 4 Gifting Sizing Kit, and I’m absolutely thrilled with how it went! The sizing kit is such a clever idea—it made finding the right fit so easy and stress-free. I was able to try on different sizes, and the whole process was simple and straightforward. I really appreciated how well-designed and user-friendly the kit was. I also love how thoughtful this kit would be as a gift. The ability to ensure the ring fits perfectly before gifting it is such a nice touch. I highly recommend this sizing kit to anyone who’s thinking about getting the Oura Ring for themselves or as a gift for someone else. It’s definitely a 5-star experience!
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Reviewed in the United States on October 19, 2025 by Tanna Daily
Color: M - 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: M - Gold
Size: 7
Bought it from my daughter who is trying to figure out what’s going on mentally in her world as a college student between sleep and schedules and everything. This is the best thing we could’ve gotten her to help her understand what’s going on in her world when she can’t see it. Great device, especially for a college kid.
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Reviewed in the United States on March 8, 2026 by Stephen Habbert
Color: M - Silver
Size: 8
I work out 5 days a week, and my Oura Ring Gen 4 has been an absolute game-changer for my routine and recovery. The sleep tracking alone has helped me understand how my body actually recovers, not just how hard I train. Seeing my sleep quality, readiness, and recovery metrics every morning has completely changed how I plan my workouts. What really stands out is how seamlessly it tracks my overall wellbeing—from sleep stages and recovery to daily readiness and trends over time. It’s helped me dial in better habits, know when to push hard, and when to prioritize rest. The insights feel meaningful and actionable, not just data for data’s sake. On top of that, it’s comfortable, unobtrusive, and easy to wear 24/7. The battery life is great, it runs easily for about 6-7 days with one full charge, plus it charges pretty quickly. If you’re serious about training, recovery, and long-term health, this ring is 100% worth it. I honestly can’t imagine my routine without it now. 💪
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Reviewed in the United States on February 28, 2026 by Caro H Caro H
Color: C - Tide
Size: 10
I bought the Oura Ring 4 Ceramic (Tide) for my wife and she absolutely loves it. The ceramic finish looks clean and elegant — it doesn’t feel like a bulky piece of tech, just a really nice ring she actually wants to wear every day. Beyond the look, she’s been finding the health insights genuinely useful, especially the sleep and recovery tracking. It’s given her a better understanding of how well she’s actually resting and how that impacts her day. The app is straightforward and easy to interpret, which makes it more practical than overwhelming. Overall, it’s been a great combination of style and function. Definitely a win.
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Reviewed in the United States on February 24, 2026 by E. Spofford
Color: M - Brushed Silver
Size: 12
Definitely get the sizing kit before you buy it. After having it for many months, I can say with certainty that this thing RULES! Life changer. A few more things quick...first, I got the brushed stainless finish. Its beautiful and gets more beautiful as it ages, scratches and gets more and more beat up. Yes, I said MORE beautiful as it gets worn. So dont be afraid to wear it. Im a mechanic and its held strong. Second, I like wearing REAL watches. Not smart watches. This allows me to wear "real" watches and also have all the same functions a "smart watch" has, but on my finger. The app is wonderful. It costs money but its always being updated and its a legitimate health tracker. Ill gladly pay monthly if the developers keep making these great updates. I super duper recommend! Also, if you have and HSA, you can use it to purchase this. If that's something you're in to.
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Reviewed in the United States on March 6, 2026 by Matthew Crittenden