Naturally colorful. Powerfully personal.
-
Advanced in every way
Oura Ring 4 Ceramic is built for 24/7 comfort with 5-8 days of battery life.** Smart Sensing technology adapts to your finger to deliver highly accurate,continuous data. All Oura Ring 4 styles provide valuable insights into your holistic health – sleep,activity,stress,women’s health,and more.
-
Ceramic like you’ve never seen
Thoughtfully crafted in high-performance zirconia ceramic,Oura Ring 4 Ceramic combines refined elegance with material innovation. Each ceramic ring goes through a traditional firing process that strengthens the material and gives it a smooth,polished finish.
-
Made for you and all you do
Show your true colors and choose from four stunning new finishes to express your individuality. If you own two or more Oura Ring 4 styles,you can now easily switch between different finishes to suit your mood,style,and energy.
Your body talks,Oura translates
Oura Membership unlocks personalized insights,an AI health companion,and new features as they arrive — all in the Oura App. Available on iOS and Android.
Frequently Asked Questions
Oura Ring’s accuracy has been tested against gold-standard lab measurements in independent,peer-reviewed studies,from heart rate and HRV to sleep staging. Continuous readings from your finger give Oura a strong,reliable signal delivering insights you can trust.
Oura Ring 5 is waterproof up to 100 meters (~330 feet),meaning that you can wear it while showering,swimming,or partaking in recreational diving (e.g. snorkeling),but we don’t recommend using your Oura Ring while scuba diving or keeping it submerged underwater for over 12 hours. Chlorine will not damage it.
Oura Ring operating temperature ranges from -10–52°C / 14–125°F. You can safely wear your Oura Ring in the shower,hot tubs,saunas,ice baths,and cryotherapy tanks. However,extended exposure to extreme temperatures (below -20°C / -4°F or above 60°C / 140°F) may lead to battery damage.
Oura Ring gives a complete picture of your health,including:
- Readiness
- Sleep
- Activity
- Daytime Stress and Resilience
- Heart Health:Cardiovascular Age and Cardio Capacity
- Women’s Health:Cycle Insights,Pregnancy Insights,and Menopause Insights
One charge lasts up to 6-9 days of battery life,depending on ring size and usage*
We recommend you use an Oura Ring sizing kit before selecting your Oura Ring size. The kit includes plastic ring sizers corresponding to Oura Ring sizes,which differ slightly from standard ring sizes (note:half sizes are not available).
For accuracy,wear the sizing ring for at least 24 hours,including while sleeping,before finalizing your size. If you’re between sizes,we recommend choosing the smaller size for a more secure fit. Visit our Sizing Page for more information.
Upgrading is easy. Just add Oura Ring 5 as a new device in the Oura App — no new Membership needed. You can also connect more than one ring and switch between them.
- * Your Oura Membership will automatically renew on a monthly or annual basis until you cancel. You may cancel at any time. Cancellation will take effect at the end of your current automatic renewal term. Canceling does not entitle you to a full or pro-rated refund of any paid fees. If you do not cancel before the end of any free trial or any prepaid membership term,your Oura membership will automatically renew and you will be charged at the applicable rate for your selected membership term.
- ** Battery life and longevity depend on Oura Ring size,Oura App settings,feature configuration,activity,battery age,usage,and many other factors;actual results will vary. Battery life and charge cycles vary by use and settings. Battery tests were conducted across various sizes and scenarios. See Oura Ring 4 Battery Life and Ring Battery Tips for more information.
| color | Midnight, Cloud |
|---|---|
| Size | 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 |
Reviews
There are no reviews yet.