Oura Ring 4 — Lock in the Future of Body Intelligence. Insights from Within, Renewal from Sight.
The all-new Oura Ring 4 combines the Smart Sensing architecture with triple-threat technology: multi-band LEDs, infrared, and temperature sensors. By simply wearing it daily, you unlock professional-grade analysis of your sleep, stress, and physical readiness.
Clinically proven to effectively improve sleep quality, enhance recovery, and detect physiological changes early, the Oura Ring 4 helps you regain your ultimate mind-body balance. ✨

Revolutionary Smart Sensing Technology: Tailored Health Insights
The Oura Ring 4 features the newly upgraded Smart Sensing platform, which automatically adjusts its sensing strategy based on how you wear it and your physiological shifts. This significantly enhances both data accuracy and stability.
Through the collaborative operation of multiple sensors, the ring continuously tracks:
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Heart Rate
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Body Temperature Variations
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Blood Oxygen Levels (SpO2)
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Activity Status
This data is integrated into over 50 health and body metrics. The system then provides personalized recommendations based on these fluctuations, helping you understand your physical condition on a deeper level and make scientific adjustments to your health management.
Screenless Design: Focus on What Truly Matters
Oura Ring 4 stays true to the brand’s signature "No Screen, No Distraction" philosophy. By removing the traditional display, it frees you from constant notifications, allowing you to focus entirely on your body's internal signals and feelings.
All data syncs seamlessly to the Oura App, presented through a clear and intuitive interface including:
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Sleep Score
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Readiness Score
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Activity Score
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Stress & Recovery Status
By accumulating and analyzing data over the long term, you can build a comprehensive personal health profile to elevate your quality of life and athletic performance.

24/7 Sleep and Recovery Monitoring: Optimizing Your Body’s Rhythm
The Oura Ring 4 places a special emphasis on sleep and recovery management. It accurately analyzes sleep stages (light, deep, and REM), sleep latency, and heart rate variability (HRV) to help users identify sleep quality and potential underlying issues.
Paired with the daily Readiness Score, users can clearly grasp their body's recovery status. This empowers you to decide whether the day is right for high-intensity training or if you need rest and adjustment, effectively minimizing the risk of overtraining and injury.
Lightweight All-Titanium Design: The Ultimate Wearing Experience
In terms of craftsmanship, the Oura Ring 4 features a new unibody titanium construction. This not only enhances durability but also maintains an incredibly lightweight and comfortable feel. The ring is designed to contour perfectly to your finger for seamless 24/7 wear—ensuring comfort even while you sleep.
With a battery life of up to 8 days and a "set it and forget it" wearing experience, the ring truly disappears on your finger while your health data continues to be recorded with precision.

A Complete Health Ecosystem: Connecting Daily Life and Fitness Data
The Oura Ring 4 syncs effortlessly with both iOS and Android devices and supports integration with health platforms like Apple Health. This allows users to consolidate health data from various sources into one centralized location.
Through continuous monitoring and analysis, Oura is more than just a wearable—it is a long-term health management platform. It acts as a dedicated companion, helping you build better lifestyle habits and find your body’s natural rhythm.
