The Oura Ring Gen 4 features are finally here, and they’re setting the bar for what a smart ring can do. With each new gen, Oura’s setting the bar higher on health tracking and wearable tech, and the fourth-gen is no exception. If you’re a biohacker, athlete, or just curious about your health, the Oura Ring Gen 4 introduces a clean and powerful experience to your fingertip.
In this blog, we’ll dive deep into all the essential Oura Ring Gen 4 features , compare them with the previous generation, and explore why this tiny wearable is one of the most advanced health trackers in 2025.
A Sleeker, Smarter Design
One of the first noticeable upgrades in the Oura Ring Gen 4 features is its improved design. While maintaining the same minimalistic style Oura is known for, Gen 4 offers:
- Lightweight titanium design for extra comfort
- Optimized sensor placement for more precise measurements
- Additional range of sizes to offer a safe fit for more people
The design changes not only enhance appearance but also enhance day and night wearability.
New Sensor Technology
One of the greatest aspects of Oura Ring Gen 4 is its advanced sensor array. Gen 4 includes:
- Double green and red LED sensors to precisely monitor blood oxygen (SpO2)
- Advanced PPG sensors for real-time heart rate tracking
- New skin temperature sensors for minute variation monitoring
They provide the building blocks for higher-quality data and actionable intelligence.
Real-Time Heart Rate Monitoring
In past generations, sleep and rest time were the only times when heart rate was monitored. One of the most thrilling Oura Ring Gen 4 features is ongoing heart rate monitoring. Now you can see your heart rate during the day—while you’re working, exercising, or just unwinding.
This feature is essential for fitness monitoring, stress tracking, and overall awareness of heart health.
Advanced Sleep Tracking
Sleep is at the core of Oura’s purpose, and Oura Ring Gen 4 features elevate it to the next level. You get:
- Machine learning-enabled advanced sleep staging (light, deep, REM)
- Daily Sleep Score and personalized sleep insights
- Nap detection automatically
These additions not only allow users to know how long they sleep but also how well they sleep.
Improved Activity and Recovery Insights
The Gen 4 ring tracks your physical activity with greater accuracy and detail now. The features of Oura Ring Gen 4 are:
- Adaptive activity targets based on your recovery status
- Automated workout detection
- It’s designed to help you achieve a balance between pushing yourself and giving your body the rest that it needs.
- VO₂ Max estimatio.
Period Prediction and Menstrual Cycle Tracking
Another major Oura Ring Gen 4 feature is more sophisticated female health monitoring. With the utilization of continuous body temperature trends, Oura now offers:
- Improved period prediction
- Ovulation window detection
- Cycle-based insights
This makes Oura one of the only wearables with passive and accurate menstrual monitoring.
Stress and Mental Readiness Tools
New Oura Ring Gen 4 tools are focused on stress and emotional wellness. The Oura Ring Gen 4 includes these:
- Daytime stress monitoring with heart rate variability and temperature
- Resilience measures to show you how resilient you are at recovering from stress
- Guided meditation, focus, and sleep audio sessions
With increasing people considering mental health, these features are both well-timed and impactful.
Battery Life and Charging
Despite the increased capacity of the sensors, battery life is remarkable. Some of the power-optimized Oura Ring Gen 4 features include:
- 4–7 days of battery life
- Fast-charging dock to charge under 30 minutes
- Low-power mode to save battery for extended periods
Which translates to more tracking and less charging.
Compatibility and App Integration
All Oura Ring Gen 4 functionality is integrated with the Oura mobile app, which now also includes:
- Detailed wellness dashboard
- Apple Health and Google Fit compatibility
- Third-party integrations with fitness and health applications
The seamless data sync delivers the user an overview of their health in one place.
Subscription Benefits
Oura still maintains a membership model, and with the Gen 4 ring, members get:
- Daily readiness score and insights
- Monthly health trend reports
- Exclusive educational content
- Early access to new features
The membership enhances the baseline Oura Ring Gen 4 features by making the information more actionable and consumable.
How Does Gen 4 Compare to Gen 3?
| Feature | Gen 3 | Gen 4 |
|---|---|---|
| Continuous HR Monitoring | ❌ | ✅ |
| SpO2 Tracking | ❌ | ✅ |
| Stress Detection | ❌ | ✅ |
| New Temperature Sensors | ❌ | ✅ |
| Real-Time Activity Tracking | ✅ (Basic) | ✅ (Advanced) |
It’s clear that the Oura Ring Gen 4 products are a huge leap from Gen 3, especially in accuracy, health aspect, and ease of use.
Final Thoughts: Is It Worth It?
If you’re looking for a comprehensive, non-invasive, and stylish health tracker, the Oura Ring Gen 4 features make it a top contender. From sleep and fitness to stress and cycle tracking, it’s more than just a ring—it’s a complete wellness companion.
Whether you’re upgrading from Gen 3 or jumping into the Oura ecosystem for the first time, the fourth generation delivers impressive value for health-conscious users.