Oura Ring 4: Everything You Need to Know

The Oura Ring 4 is a smart wearable designed to track sleep, activity, stress, heart rate, and reproductive health with precision. It offers advanced health metrics in a discreet, stylish ring form.

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Specifications

• Dimensions: 7.9mm wide, 2.88mm thick
• Weight: 3.3g – 5.2g (varies by size)
• Sizes Available: 4 to 15
• Material: Titanium (non-allergenic)
• Colors: Black, Silver, Brushed Silver, Stealth (DLC Coating), Gold, Rose Gold
• Water Resistance: Up to 100 meters (328 feet)
• Battery Life: Up to 8 days
• Charging Time: 20-80 minutes
• Connectivity: Bluetooth Low Energy (supports Airplane Mode)
• Compatibility: Works with iOS and Android; integrates with 40+ health and fitness apps

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Functions & Features

✔ Heart & Sleep Monitoring – Measures heart rate variability (HRV), resting heart rate, and blood oxygen (SpO2) for detailed sleep analysis
✔ Activity Tracking – Detects 40+ activities automatically and provides movement insights
✔ Temperature Sensing – Detects body temperature fluctuations, useful for illness detection and reproductive health tracking
✔ Menstrual & Fertility Tracking – Provides cycle insights and fertility window predictions
✔ Stress & Recovery Monitoring – Measures stress levels and recovery periods
✔ Smart Sensing Technology – Adjusts tracking algorithms based on individual biometric patterns

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Who Is It Best For?

• Fitness Enthusiasts – Helps optimize workouts and recovery
• Health-Conscious Individuals – Offers advanced insights into overall well-being
• Women Tracking Menstrual & Fertility Cycles – Provides highly accurate cycle tracking
• People Seeking Non-Intrusive Wearables – Comfortable, lightweight, and works 24/7 without requiring frequent charging
• Sleep Optimizers – One of the best sleep trackers available

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How It Works

The Oura Ring continuously collects biometric data using red, infrared, and green LED sensors along with an accelerometer. The data is sent to the Oura App, where it is analyzed to provide insights into sleep, activity, stress, and reproductive health【12】.

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Price & Subscription

• Base Price: $349 (can go up to $499 depending on color)
• Subscription: $6/month or $70/year (after a 1-month free trial)【12】【13】

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Advantages of Oura Ring 4

✅ Discreet & Stylish – Looks like a normal ring, unlike bulky smartwatches
✅ Highly Accurate – Superior signal quality for heart rate and oxygen level tracking
✅ Long Battery Life – Lasts up to 8 days on a single charge
✅ Waterproof – Can be worn while swimming or showering
✅ Smart Insights – Personalized health recommendations based on your data

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Final Thoughts

The Oura Ring 4 is an excellent investment for those who prioritize health, fitness, and recovery tracking without wearing a bulky smartwatch. While the price and subscription model might be a downside for some, the ring’s capabilities and comfort make it one of the best health-tracking wearables available today【11】【12】【13】.