Oura Ring Generation 3 (Gen3) allows you to track your sleep, nighttime and daytime biosignals, and daily activity with 15 advanced sensors. Gen3 rings and chargers are available for purchase from the Oura online store and online from various authorized retailers.
Hardware
Software
Oura Membership
More Information
Hardware
Oura Ring Generation 3 is available in two styles and sizes 6-13.
- Oura Ring Gen3 Horizon has a sleek, uninterrupted design with a dimple on the bottom to ensure optimal finger placement. It comes in six finishes
- Oura Ring Gen 3 Heritage has a classic plateau design and comes in four finishes
Every Oura Ring includes a size-specific charger and charger cable.
For the best fit and most accurate sensor readings, align your ring so that the sensor bumps are against the palm side of your finger.
Sensors
- Green and red LEDs, in addition to infrared (IR) LEDs. This allows measurements of daytime and activity heart rates
- Extra negative temperature coefficient (NTC) sensors to measure differences in your skin temperature. This enables Cycle Insights and improved illness detection
- An extra IR sensor, which helps the algorithm detect and compensate for when your ring is not optimally aligned, allowing for more accurate readings
- Accelerometers, to detect your daily activity, steps, and common workout types
- The Gen3 Charger features color-coded LEDs for improved charging status displays
External Surface Materials
- Titanium with physical vapor deposition (PVD) coating in Gold, Silver, Rose Gold, and Brushed Titanium. Titanium with Diamond-like Carbon (DLC) coating in Black and Stealth
Inner Surface Materials
- Non-allergenic, non-metallic seamless inner molding. This is a medical grade, BPA-free inner surface
- Shock resistance and bonding between printed circuit board and ring outer frame
Connectivity
- Bluetooth Low Energy (Bluetooth Smart®)
- EMF-Safe and allows Airplane Mode
- FCC certified
Other Specifications
- Battery: Up to 7 days. Battery life and longevity can vary depending on the age of your ring and how often you use certain features. See Ring Battery Tips for more information
- Width: 7.9mm
- Thickness: ~2.7mm (Oura Ring Gen3 Heritage), ~2.9mm (Oura Ring Gen3 Horizon)
- Weight: 4-6 grams (depending on ring size)
See more information in our Product Safety & Use article.
Software
Oura Ring Gen3 with active membership includes:
- Detailed sleep analysis
- 24/7 heart rate tracking (Daytime, Nighttime, Activity)
- Integration with third-party health and wellness apps like Strava
- Advanced temperature monitoring
- Blood Oxygen Sensing (SpO2)
- Cardiovascular Age
- Cardio Capacity (VO2 Max)
- Cycle Insights
- Daytime Stress
- Dynamic activity goals with Automatic Activity Detection
- Oura Labs
- Pregnancy Insights
- Resilience
- Weekly, monthly, quarterly, yearly, and anniversary reports
Body clock and chronotype, Explore content, and personalized activity goals are also available for Gen2 rings.
Oura Membership
Oura Membership is available in monthly and annual plans. Membership and its in-app features are only available in countries where Oura ships its products, and must be purchased with a credit card and billing address from one of those countries. For a full list of supported countries, see our Shipping FAQs.
See Oura Membership for more information and pricing.
