Oura Ring 4 | Smart Ring | Black | Silver

The Oura Ring 4 is a premium titanium smart ring that combines elegant design with powerful biometric tracking. Discreet like a piece of jewelry, lightweight, and comfortable to wear – it helps you understand your body better than ever before.

Key Advantages:
Fully made of titanium with embedded sensors – smooth and barely noticeable on the finger, ensuring maximum comfort.
Intelligent sensor technology – automatically selects the best of 18 optical signal pathways to deliver the most accurate readings at any moment.
Longer battery life – up to 8 days on a single charge.
Comfortable and wider size range – weighs only 3.3–5.2 g, thickness 2.88 mm, available in sizes 4 to 15.
Style meets functionality – finish options include silver, gold, rose gold, stealth, matte silver, and black.

Health & Wellness Features:
24/7 heart rate and pulse monitoring, HRV, resting heart rate, nighttime respiratory rate, blood oxygen level (SpO₂), body temperature changes, and activity tracking.
The Oura app with clear views: Today, Vitals, My Health. Log workouts, meals, and mood; track stress levels, metabolism, and sleep quality.
With a subscription (~€5.99/month) – personalized guidance, readiness score, and in-depth analytics.
Women’s health tools: menstrual cycle prediction, symptom radar, and more.

Technical Specifications:
Material: Titanium
Thickness / Weight: 2.88 mm; 3.3–5.2 g
Sizes: 4–15
Battery life: up to 8 days
Sensors: PPG (HR + SpO₂), temperature sensor, accelerometer

The Oura Ring 4 is the perfect choice for those who want comprehensive insight into their health and recovery without wearing a bulky smartwatch.