Oura Ring 4
Get connected
Still need help?
At a glance
- Oura Ring 4 is designed for 24/7 use and can be worn anywhere you go. Oura Ring is water-resistant up to 100 m / 328 ft.
- Wear your Oura Ring with the sensors facing the palm of your hand.
- Clean your Oura Ring regularly with soap and water. Keep it dry to ensure good functionality and reduce potential skin irritation.
- Questions? Refer to the Frequently Asked Questions (FAQs) or contact support at support.ouraring.com. You can also contact us on your Oura App > Home > Help.
Thank you for choosing Oura Ring 4!
We want to do our best to support you on your health journey with Oura Ring. Here you’ll find information about the Oura Ring 4 and the Oura Ring charger. This booklet lists the technical details and safety information of the Oura Ring. Please read through carefully to use the Oura Ring safely and get the best experience with ŌURA.
General usage
Oura Ring 4 is designed for 24/7 usage and can be worn during showers, saunas, baths, swimming, and snorkeling. Oura Ring is water resistant to 100 m / 328 ft.
- ⚠︎ Clean the ring regularly and keep it dry to ensure good functionality and reduce potential skin irritation. You can clean the ring by wiping it down with a damp cloth and drying it fully before using it again.
- ⚠︎ Use the provided size-specific Oura Ring 4 charger and cable for charging.
- ⚠︎ Oura Ring charger is not water-resistant and is intended for indoor use only. Do not use or store the charger in humid environments like bathrooms.
- ⚠︎ The Oura Ring may get scratched and can itself scratch softer materials (metal, jewelry, or other objects) while using the ring in close contact.
Safety
Oura Ring is not a medical device and is not intended to mitigate, prevent, treat, cure, or diagnose any disease or condition. Always consult a physician regarding medical conditions. Always be sensitive to your body’s responses, and if you make any changes to your behavior based on data from your Oura Ring, you agree that you do so at your own risk.
- ⚠︎ If you feel unexpected, repeated, or long-term pain, fatigue, or discomfort due to having made changes to your sleep or activity, consult a physician before continuing with such changes.
- ⚠︎ Ring surface materials are safe for skin contact (ISO 10993 standard). If you experience irritation on your skin due to the Oura Ring, remove the ring. If symptoms persist after not using the Oura Ring, please contact a physician.
- ⚠︎ Please be careful that the Oura Ring does not get caught on fixed structures or heavy objects.
- ⚠︎ In cases of emergency or discomfort, or if you can’t remove the Oura Ring yourself, seek immediate medical attention.
- ⚠︎ Keep Oura Ring away from children. This product is not intended for individuals under the age of 18. Do not expose the Oura Ring or the charger to heat, such as in a vehicle or directly in the sun.
- ⚠︎ Do not charge the Oura Ring in such an environment.
- ⚠︎ Do not attempt to open, cut, or puncture the Oura Ring. Avoid handling batteries, working on devices with machinery that contains batteries, or situations where there is a risk of electric shock.
Product Information
- Operating temperature range –10 – 54 ºC / 14–129 ºF. Red and green light-emitting diodes (LEDs) in the product are in the visible color range. They are safe for the wearer and other people nearby.
- Memory capacity: Recommended to sync Oura Ring data daily with the Oura App. Oura Ring is capable of storing up to 2 weeks of data, depending on the type and frequency of ring use.
- Battery: Rechargeable Li-ion battery.
- Battery life: Typically up to 8 days. Actual battery life depends on Oura Ring size, usage, Oura App settings, age, and many other factors.
- Charging time: Typically charges fully in 20-80 minutes, depending on the starting battery level. Charging at room temperature.
- Optimal charging temperature: min 18 ºC / 65 ºF – max 32 ºC / 89 ºF. Normal operation distance for Charger model OA12 is more than 20 cm (8 in) from the human body.
- Charger and power cord: USB Type-C connector in charger.
- Power cord type: USB-C to USB-C. Use an external 5Vdc power supply that complies with IEC 62368-1 standard. Oura charger complies with IEC 62368-1 international safety standard for ICT and AV equipment.
- Connectivity: Bluetooth Low Energy.
- Ring firmware updatability: Automatic firmware updates via the Oura App.
- Oura App availability: App Store, Google Play.
- Oura App compatibility: See ouraring.com/compatibility.
- Security: Encrypted Bluetooth communication used between the Oura Ring and the Oura App.
- Dispose of Oura Ring (and internal battery) in accordance with applicable local laws and regulations. Special handling may be required. The charger is an electronic device, and local legislation for electronics recycling should be followed.
- Factory reset instructions at support.ouraring.com to perform a factory reset before ring disposal.
- Warranty Disclaimer: ouraring.com/terms-and-conditions.
Support and FAQs
If you have questions about using your Oura Ring, Oura App, or our online services, please do not hesitate to contact us. You’ll find Frequently Asked Questions (FAQs) at support.ouraring.com. You can contact Support at support.ouraring.com or on your Oura App: Home > Help. You can access ŌURA’s privacy policies at ouraring.com/privacy-policy.
Regulatory
EU 
Product information
- Ring: Product type: Wellness ring. Model name: OA11. Brand: ŌURA
- Charger: Product type: Charger for Wellness ring. Model name: OA12. Brand: ŌURA
- RF Interface: Frequency range 2402-2482MHz. Max output power 2.0mW
Hereby, Oura Health Oy declares that the radio equipment types OA11 and OA12 are in compliance with Directive 2014/53/EU. The full text of the EU declaration of conformity is available at the following internet address: ouraring.com/declaration-of-conformity.
For More Manuals By Oura Ring, Visit ManualsLibraryy.
Oura Ring 4-FAQs
What is the Oura Ring 4 used for?
The Oura Ring 4 is designed to track sleep, recovery, activity, heart rate, stress, and overall wellness. It collects health data continuously throughout the day and night, helping users understand their habits, improve recovery, and make better lifestyle decisions using personalized health insights.
How accurate is the Oura Ring 4?
The Oura Ring 4 offers highly accurate sleep and recovery tracking thanks to upgraded Smart Sensing technology and improved sensors. Many reviewers consider it among the best smart rings available for wellness tracking, especially for sleep analysis, resting heart rate, and recovery monitoring during daily use.
Does the Oura Ring 4 require a subscription?
Yes, the Oura Ring 4 requires a monthly membership to unlock the most advanced health insights and features. Without the subscription, users receive only limited data access. The membership includes sleep analysis, stress tracking, readiness scores, wellness reports, and other premium health monitoring tools.
How long does the Oura Ring 4 battery last?
The Oura Ring 4 battery typically lasts between five and eight days, depending on settings, ring size, and feature usage. Features like blood oxygen monitoring and workout tracking can reduce battery performance, while light usage and regular charging habits help maintain longer battery life.
Is the Oura Ring 4 waterproof?
Yes, the Oura Ring 4 is water-resistant and suitable for daily activities like hand washing, showering, and swimming. It is built to handle normal water exposure comfortably, although prolonged deep-water activities or extreme pressure situations may still affect long-term durability and performance.
Can the Oura Ring 4 track workouts?
The Oura Ring 4 can automatically detect and track several workouts, including walking, running, cycling, and strength training. It records heart rate, calories burned, and recovery information while syncing with supported fitness apps to provide a more complete view of overall physical activity.
Does the Oura Ring 4 work with iPhone and Android?
Yes, the Oura Ring 4 works with both iPhone and Android devices through the official Oura mobile application. Users can sync health data, review sleep reports, monitor activity trends, and receive wellness insights directly from their smartphones without needing additional fitness hardware.
How comfortable is the Oura Ring 4 for daily wear?
The Oura Ring 4 is designed with a lightweight and smooth titanium build that feels comfortable during daily wear and sleep. Its slim design makes it less bulky than smartwatches, allowing many users to wear it continuously without discomfort throughout normal daily routines.
Can the Oura Ring 4 measure stress levels?
Yes, the Oura Ring 4 includes stress tracking features that analyze heart rate variability, body signals, and recovery data throughout the day. The app provides insights into stress patterns and relaxation levels, helping users better understand how lifestyle habits affect mental and physical wellness.
Is the Oura Ring 4 worth buying?
The Oura Ring 4 is worth considering for people focused on sleep quality, recovery tracking, and overall wellness monitoring. Its detailed insights, stylish design, and long battery life make it appealing, although the required subscription may influence value depending on individual health tracking needs.