Detailed Sleep Analysis

Engineered to track total sleep duration, heart rate variability, nighttime movement, and sleep consistency, this Oura Ring 4 Size 12 Smart Ring delivers a comprehensive sleep score each morning. In addition, it presents a clear breakdown of deep, REM, and light sleep stages. Therefore, you can evaluate your nightly rest patterns and refine your bedtime routine with informed insights.


Continuous Vital Tracking

Offering round-the-clock heart rate monitoring, blood oxygen sensing, and temperature trend evaluation, this size 12 smart ring provides ongoing physiological data. As a result, you can understand how lifestyle habits, stress levels, and environmental factors influence your overall wellness. Metrics such as cardiovascular age, cardio capacity, and heart rate variability support long-term heart health awareness.


Daily Readiness Insights

Built with a Readiness Score feature, this ring interprets sleep quality, heart rate, and temperature signals to reflect how prepared your body feels each day. Hence, you can decide whether to prioritise intense activity or restorative downtime based on recovery feedback.


Intelligent Activity Recognition

Supporting automatic detection of over 40 physical activities, this smart ring records movement patterns along with heart rate responses. In addition, dynamic activity goals adjust in line with your recovery data. Thus, you can maintain a steady balance between exercise and rest.


Daytime Stress Tracking

Monitoring physiological stress signals throughout the day, this ring highlights strain patterns and recovery cycles. Therefore, you can identify stress triggers, observe resilience levels, and take steps to support balanced wellbeing over time.


Cycle and Period Insights

Using body temperature trends, this smart ring delivers menstrual cycle insights and period predictions. Moreover, compatibility with apps such as Natural Cycles and Clue allows synced data tracking. Hence, you can stay informed about cycle patterns through the Oura app.


Seamless App Integration

Compatible with the Oura app on Android and iOS, this ring connects through Bluetooth BLE and supports automatic firmware updates. With 5-8 days of battery life and aeroplane mode functionality, you can experience uninterrupted tracking across daily routines.


Water-Resistant Construction

Designed to withstand water exposure up to 100m, this smart ring remains suitable for swimming, workouts, and showers. The robust build supports consistent performance in varied conditions, allowing you to keep tracking active without removal.


Streamlined Lightweight Form

Weighing between 3.3g and 5.2g depending on the size, this smart ring maintains a light and steady presence on your finger. Its balanced design ensures comfortable extended use, allowing you to monitor your wellbeing consistently without interruption.


Refined Titanium Build

Constructed from titanium, this Oura ring combines strength with a lightweight feel for comfortable all-day wear. Its smooth profile ensures a natural fit on your finger, so you can wear it continuously during work, sleep, and activity.