Find answers to frequently asked questions about Oura below. We also have separate FAQ articles on the following topics:
Shipping FAQs
Return & Exchange FAQs
Warranty FAQs
Oura Membership FAQs
You can contact our Member Care Team here.
What’s the difference between the Oura Ring generations?
What is the sizing kit process?
How do I change my email address or reset my password?
How do I purchase an additional charger?
How long does the Oura Ring battery last?
Which devices and operating systems (OS) is the Oura App compatible with?
Device proximity guidelines
Can Oura sync with other apps?
Can I wear my Oura Ring only at night?
Can I wear my Oura Ring while working out?
Is the Oura Ring waterproof?
Does Oura account for time zone changes?
How can I find a lost ring?
Found a ring?
What is Restricted Mode?
Does Oura have a smart alarm?
How accurate is Oura?
Can Oura detect COVID-19?
How should I store the ring when I'm not wearing it?
What promotional discounts does Oura offer?
What sustainability practices does Oura have?
More information
What's the difference between the Oura Ring generations?
Oura Ring 4 is the next evolution of the revolutionary smart ring, designed to help you get up close and personal with your health. Oura Ring 4 is built around a breakthrough sensing technology, Smart Sensing, which adapts to your finger to deliver accurate, continuous data, day and night.
Oura Ring 4 is an all-titanium design and is available in six finishes. It has a sleeker, fully round inside shape with optic lenses decreased to a barely noticeable 0.3mm height.
For more information on the different generations, see Oura Ring 4, Oura Generation 3, and Previous Ring Generations.
Oura will continue to support the Gen2 rings with routine software and firmware updates.
What is the sizing kit process?
We recommend using the Oura Ring sizing kit to determine your Oura Ring size. A properly fitting ring will result in the highest possible data accuracy, comfort, and overall experience with Oura.
The sizing for Oura Ring 4 is slightly different from Oura Ring Gen3. If you're switching between these different ring generations or uncertain about your size, make sure to use the right Oura Ring Sizing Kit for an accurate fit. The Oura Ring 4 Sizing Kit includes white ring sizers, and the Oura Ring Gen3 Sizing Kit includes black ring sizers.
See Tips for Determining Your Oura Ring Size for more information.
How do I change my email address or reset my password?
Forgot password?
You can reset your password by clicking here, or by selecting "Forgot Password" on the Membership Hub login page.
More information on how to change your Oura account email address, password, or other details, can be found in this article.
The intended use and setup of an Oura Ring should consist of the following: one ring, one account, one device. If there are multiple users or data sources feeding into the same account, this leads to missing data, connectivity issues, or even accelerated battery consumption.
How do I purchase an additional charger?
You can purchase additional chargers directly from the Oura online store.
How long does the Oura Ring battery last?
Oura Ring 4: A fully charged ring may last up to eight days.
Oura Ring Generation 3: A fully charged ring may last up to seven days.
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 Ring Battery tips for more information.
Oura Ring 4 battery estimates are based on consumption data of internal users, analyzing usage from 100% to 0% battery levels. Oura Ring Generation 3 battery estimates were used as a reference to validate any improvements.
Which devices and operating systems (OS) is the Oura App compatible with?
The Oura App is supported on iOS devices running Apple iOS 15 and higher, or Android devices running Android 9 and higher with Google Play services. Your device must support Bluetooth 4.0.
You can also access most of your Oura data using Oura on the Web.
Device Proximity Guidelines
Your Oura Ring must be within Bluetooth range in order to sync its recorded data with the Oura App. The ring will collect data even when in Airplane Mode or not connected to the app.
Can Oura sync with other apps?
Yes! Oura has an ever-growing list of partnerships and integrations, which you can find in our App Integrations section.
Can I wear my Oura Ring only at night?
Yes. However, you may miss out on data that impacts other features or scores, such as your Activity Score or Daytime Stress. We recommend Oura members wear their rings 24/7 for optimal accuracy and personalization.
Can I wear my Oura Ring while working out?
Yes, you can wear your Oura Ring throughout all your workouts and movement routines. Oura can even automatically detect and track over 40 unique activity types.
However, we don't recommend wearing your Oura Ring while lifting heavy weights, as it may get scratched.
Is the Oura Ring waterproof?
The Oura Ring is water-resistant 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 ring while scuba diving or keeping it submerged underwater for over 12 hours.
Oura Ring operating temperature ranges from -10–52°C / 14–125°F. You can safely wear your 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.
Does Oura account for time zone changes?
Yes, your Oura Ring will synchronize to your device's local time once your ring and Oura App connect over Bluetooth in the new time zone.
You’ll need to ensure that:
- Bluetooth is enabled on your device
- Proper connection between your ring and app is established
- Your device’s OS is fully up to date
How can I find a lost ring?
Learn how to locate your misplaced Oura Ring here.
Found an Oura Ring?
If you've found an Oura Ring, please contact us so that we can locate its original owner.
You can contact our Member Care Team here.
What is Restricted Mode?
Restricted Mode protects your information in case an unwanted party gets a hold of your Oura Ring and attempts to pair it with their device, or if you attempt to pair your ring to a new device without performing a factory reset on it first.
If the Oura App notifies you that it’s in Restricted Mode, you'll need to reset your ring to its factory settings in order to continue using it.
Does Oura have a smart alarm?
The Oura Ring does not have a smart alarm feature, nor does it use sounds, lights, vibrations, or other alert functions. However, Oura can send you notifications for a number of situations. Manage your notifications settings by navigating to the menu in the upper-left corner of the home screen > tap "Settings" > "Notifications."
How accurate is Oura?
The sensors in the Oura Ring have been tested against laboratory results in multiple validation studies.
- Temperature: Oura measures skin temperature changes as precisely as 0.13°C (0.234°F), accurate to within 0.36°C (0.648°F), and matches with research-grade tools at more than 99% under lab conditions, and 92% under real world conditions.
- Respiration: When compared to a medical-grade electrocardiogram (ECG), Oura is shown to be accurate to within one breath per minute across the entire night.
- Heart Rate: Oura is 99.6% accurate for nighttime resting heart rate (RHR) and 98% accurate for heart rate variability (HRV) when compared to a medical-grade electrocardiogram (ECG).
- Sleep: Oura reaches 79% agreement when compared to polysomnography (PSG) laboratory sleep tests.
- Activity: Read our article on How Oura Measures Steps & Activity.
Can Oura detect COVID-19?
The Oura Ring is not a medical device and is not intended to diagnose, treat, cure, monitor, or prevent medical conditions or illnesses. Please do not make any changes to your medication, nutrition, or workouts without first consulting your doctor or another medical professional.
For information regarding COVID-19 onset research, check out this article about a recent UCSF study.
How should I store the ring when I'm not wearing it?
If you plan on taking a break from wearing your Oura Ring for more than two weeks, we recommend putting it into power saving mode to prevent any potential battery deterioration.
If you're not wearing your ring during the day, be sure to store it on a flat surface and away from any direct light sources to avoid generating false data.
What promotional discounts does Oura offer?
Oura offers occasional promotional discounts on purchases: follow us on social media (Twitter, Facebook, Instagram, and LinkedIn) or sign up for our newsletter to stay up-to-date with our latest offers.
You can also find more information on current discounts, including our Refer a Friend program, in the Current Promotions article.
What sustainability practices does Oura have?
We are being mindful of how we grow in a socially responsible manner. When it comes to what we currently have in place, we take pride in our focus on sustainability in the manufacturing of the Oura Ring. We have done a number of independent carbon footprint reports to measure our production emissions and work with manufacturers in our headquartered country of Finland to keep us close to our product. Additionally, Oura only uses reputable suppliers and vendors who are compliant with local employee laws and social legislation. We have multiple ongoing initiatives within Oura and look forward to sharing more about them in the future.
More Information
Product Safety & Use
Caring for Your Ring
How to Set Up the Oura App
