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OURA

Oura Ring 4 - Smart Ring - Ceramic Petal - Size 6 - Sleep, Activity, Women's Health, AI Advisor, Up to 8 Days of Battery Life, Oura App, Android & iOS Compatible

Based on 718 reviews
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$399.00
Save $100.00 was $499.00

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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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At a glance

Condition
New
Style
Ceramic
Color
Petal
Size
6
Model
JZ90-57459-06
Storage
16 MB
Dimensions
0.31 x 0.31 x 0.14 in
Warranty
1 Year Manufacturer
Works with
Smartphone

Features 7

  • 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
  • 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
  • HSA/FSA ELIGIBLE - We can accept HSA or FSA funds for the following: Oura Ring, additional chargers, and shipping

Description

Oura Ring 4 Ceramic is a modern expression of our revolutionary smart ring technology, blending refined elegance with everyday durability. The high- performance ceramic exterior is designed to keep up with you. The Ceramic Collection is available in sizes 4-15 and three unique colors: Petal, Tide and Cloud. Each new color is built to accent your style and personality. This colorful new take comes with the same cutting-edge technology of Oura Ring 4. Track over 50 health metrics and get personalized insights into your sleep, activity, readiness, stress, heart health, metabolic health, women's health and more. It is built around a breakthrough sensing technology, Smart Sensing, which adapts to your finger to deliver accurate, continuous data. With 5-8 days of battery life, you'll see a complete picture of your health. It's designed with recessed sensors on the interior, making it comfortable and gentle, even on sensitive skin. Oura Ring is FSA/HSA Eligible — we can accept FSA or HSA funds for the following: Oura Ring, additional chargers, and shipping. Oura Ring 4 Ceramic Polishing Pad: Keep your Oura Ring 4 Ceramic looking like new with the Ceramic Polishing Pad, redeemable once you sync your purchase in the Oura App. Due to the hardness of the zirconia ceramic, it can take on the color of softer metals, like a dumbbell or cookware. Over time, you may notice grey marks on your Oura Ring 4 Ceramic. Rest assured, it's not damaged — it's evidence of a metal transfer and easy to remove with proper cleaning. Use caution when handling metal objects and consider removing your Oura Ring for some activities. The Oura Ring 4 Ceramic Polishing Pad is your partner in keeping your ring in top condition. 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.

Specs 39

Operating System Android, iOS
Memory Storage Capacity 16 MB
Special Feature Activity Tracker, Cycle Tracking, Daily Workout Memory, Lightweight
Battery Capacity 15
Connectivity Technology Bluetooth
Wireless Communication Standard Bluetooth
Battery Cell Composition Lithium Polymer
GPS GPS Via Smartphone

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

Beautiful design with genuinely useful health insights
Style: Ceramic Color: 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. ... show more
Reviewed in the United States on February 24, 2026 by E. Spofford
Full of data while compact
Style: Ceramic Color: Midnight Size: 10
I’ve been extremely impressed with my Oura Ring. I love how much it tracks—from stress levels and cardiovascular metrics to personalized AI insights that actually help me understand my health trends over time. The information feels tailored to me rather than just presenting raw data, which makes it much more useful. I also chose the darker finish and was worried it would scratch easily, but it’s held up much better than I expected. It still looks great after regular daily wear. One unexpected benefit is how much I enjoy not having constant notifications on my wrist. I’m honestly considering replacing my Apple Watch with the Oura Ring full-time because it gives me the health data I care about without all the distractions. If you’re looking for a sleek, comfortable health tracker, I’d definitely recommend it. ... show more
Reviewed in the United States on July 26, 2026 by Jordan Sims
Great for sleep and recovery tracking without wearing a bulky watch
Style: Ceramic Color: Cloud Size: 9
Review Image by Laura R
Review Image by Laura R
Review Image by Laura R
I’ve really enjoyed using this ring so far. It has a good lightweight fit, comfortable, and much less distracting than wearing a smartwatch all day and night. Great functions including sleep tracking which has been especially helpful and honestly feels pretty accurate compared to how rested I actually feel. The app is clean and easy to understand but it is not included and you have to pay a monthly subscription. I like being able to see trends with sleep, stress, activity, and recovery all in one place. Very duarable. The ceramic cloud color also looks sleek and neutral enough to wear with everything. Battery life has been solid too. Expensive, yes, but if you’re into health tracking and want something more minimal than a watch, I think it’s worth it. ... show more
Reviewed in the United States on May 23, 2026 by Laura R
Track your Biometrics without Interruptions
Style: Ceramic Color: Tide Size: 9
Review Image by SarahMarie
I purchased the Oura Ring 4 right before heading to a wellness retreat in Arizona because I wanted to disconnect from constantly wearing my Apple Watch and being tied to my phone—and it delivered exactly what I was looking for. The ring tracks many of the same key metrics (sleep, activity, readiness), but in a much more subtle, low-maintenance way. What really stands out is the app experience: the UI is clean, intuitive, and actually enjoyable to use. It presents data in a way that feels actionable without being overwhelming. The sleep tracking has been especially helpful. The level of detail, like sleep stages, restfulness, and trends over time and has given me better insight into how my habits impact recovery. I also appreciate how it passively tracks activity throughout the day without needing to manually log everything. Overall, it’s been a great alternative to a smartwatch, especially if you're trying to be more mindful and less connected while still keeping tabs on your health. Comfortable, discreet, and surprisingly powerful. The ceramic one seems durable and I picked up a polishing cloth for it. Charging is easy with the included charger. ... show more
Reviewed in the United States on March 29, 2026 by SarahMarie
LOVE IT!!!! NO idea why people have terrible ratings. It's AMAZING!!!!
I LOVE MY RING!!!! I originally got the metallic ones and within a few days it seemed it'd be easy to scratch...then they came out with the ceramic and I was SO EXCITED! I got the beautiful pearly pink one and it does not scratch ever. I am a busy mom of 4 and it is beautiful, feminine and has no scratches. It's accurate. Charges well. Connects well. It's sooo strange that people wrote such odd negative reviews here. I've had ZERO problems and it's ammmmmazing. Plus you have 30 days to return it to try so give it a try! :) My hubby is going to get one too in the midnight blue from their website. ... show more
Reviewed in the United States on March 2, 2026 by Diane_Outdoors
Smart, Sleek, and Surprisingly Insightful!
Style: Ceramic Color: Cloud Size: 9
Review Image by Amber_UGC
I absolutely love my Oura Ring 4! It’s lightweight, stylish, and so comfortable that I forget I’m even wearing it. The sleep tracking is incredibly accurate and has helped me improve my bedtime routine. I also appreciate the readiness and activity scores — they make it easy to understand how my body is doing day to day. The battery life is impressive, lasting several days on a single charge, and the app is very user-friendly with clear insights and tips. I also love that it looks like a simple, elegant ring rather than a bulky fitness tracker. If you’re serious about improving your health, sleep, and daily performance, the Oura Ring 4 is worth every penny. It’s like having a personal wellness coach on your finger! ... show more
Reviewed in the United States on October 8, 2025 by Amber_UGC
Great ring, great app, ceramic is pretty- but... Maybe not the best to get
Style: Ceramic Color: Petal Size: 7
So I have been wearing my Oura for a while. I absoulutely love the app, better than any other wearable and I have had other rings and watches. I love the ceramic look but it already has part of the ceramic chipped off and I never dropped it and always wear a cover. So who know how or when it did that but I have not had it that long= just a few months and a few weeks in noticed it at the tip of the ring. I wear it all the time and ony recently a few times did nottice it died before recharging so not sure if it is starting to die early or why I did not see the notification this last 2 times. I wish I had the versio 5 but was a little early getting it before it came out. ... show more
Reviewed in the United States on July 28, 2026 by Sheryl
A Wellness Game Changer That Helps Me Understand My Body
Style: Ceramic Color: Petal Size: 12
The Oura Ring 4 has truly been a game changer for me! As someone living with chronic illnesses, being able to better understand my body, track my patterns, and recognize changes has been incredibly valuable. This ring gives me insight into things like sleep, recovery, readiness, activity, and so much more, helping me become more in tune with what my body needs. I was a little hesitant about the price and the monthly subscription at first, but after using it, I can confidently say it’s worth the investment. The amount of information and features it provides makes it feel like a personal wellness tool right on my finger. I love that it helps me notice trends, make better decisions for my health, and understand when I may need to slow down or prioritize rest. If you’re someone who wants to be more connected with your body and your overall wellness, the Oura Ring 4 is definitely worth considering. This has become an essential part of my daily routine, and I couldn’t recommend it more! ... show more
Reviewed in the United States on July 15, 2026 by Brianna w
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