Oura Ring 4 Uses Smart Sensing to Track Over 30 Biometrics [Video]

Oura has unveiled a new 'Oura Ring 4,' a lightweight all-titanium smart ring that uses Smart Sensing to track over 30 biometrics. The new model features recessed sensors making it more comfortable to continually wear.

Oura Ring 4 is built around a breakthrough sensing technology, Smart Sensing, which is powered by an algorithm that works with research-grade sensors to dynamically adapt to the finger and deliver accurate and continuous data, day and night. The lightweight, all-titanium design of Oura Ring 4 features recessed sensors for a smooth interior shape and thinner profile, making it more comfortable for 24/7 wear. By combining Smart Sensing and the sleek new design, Oura Ring 4 is able to achieve both exceptional accuracy and improved comfort without having to sacrifice one for the other.

"Oura Ring is designed to be a personal health companion, giving our members a holistic view of their health by pairing personal data with meaningful, actionable insights to facilitate long-term changes," said Tom Hale, ŌURA CEO. "The next-generation Oura Ring 4, reimagined Oura App, and the development of the Smart Sensing platform represent significant steps forward for wearables across accuracy, comfort, personalization, and design. We're committed to continuing our relentless pace of innovation, delivering exceptional value to Oura Members."




Smart Sensing
Smart Sensing is powered by an algorithm that works alongside the research-grade sensors within Oura Ring 4 to respond to each member's unique finger physiology. The sensors, which more than double the number of available signal pathways from eight to 18 as compared to Oura Ring Gen3, automatically adapt to find the best signal path, ensuring continuous, accurate data in any situation, all while optimizing the battery to achieve up to eight days of battery life. Smart Sensing also makes it possible for the sensors, which were previously housed in raised domes on Oura Ring Gen3, to be recessed for more comfort.

Smart Sensing reportedly enables...

● 120% improvement in signal quality for blood oxygen sensing (SpO2), translating to a 30% increase in accuracy in average overnight SpO2 measurement
● 15% more accurate breathing disturbance index (BDI) thanks to the higher signal fidelity
● 7% fewer gaps in the daytime heart rate
● 31% fewer gaps in the nighttime heart rate


"Years in the making, Smart Sensing is the future of health sensing, setting a new accuracy standard," said Holly Shelton, chief product officer at ŌURA. "We designed Oura Ring 4 to be life-proof—it's easy to create technology that works under optimal conditions, but that doesn't reflect real life. With Smart Sensing, Oura Ring 4 accounts for ring rotation that naturally occurs with daily activities, as well as differences in finger anatomy, shape, BMI, and skin tone."



Pricing and Availability
Oura Ring 4 is available to order in an expanded range of twelve sizes (4-15) and in six colors: Brushed Silver, Gold, Rose Gold, Silver, Stealth, and an updated Black finish that features a glossy, tungsten PVD coating for improved durability and a deeper black look. The ring costs $499 and requires an Oura membership ($69.99/year or $5.99/month).

Oura offers a sizing kit for $10 which is credited back towards a purchase.

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