Precision Sleep Tracking

Designed to evaluate total sleep duration, heart rate variability, nighttime movement, and sleep consistency, this Oura Ring 4 Size 4 Smart Ring delivers a detailed sleep score each morning. In addition, it provides insights into deep, REM, and light sleep stages for a clearer understanding of nightly recovery. Therefore, you can assess how well you rested and make informed adjustments to your bedtime routine.


Comprehensive Health Insights

Supporting 24/7 heart rate monitoring, blood oxygen sensing, and temperature trend analysis, this size 4 smart ring offers continuous physiological data. It also includes metrics such as cardiovascular age, cardio capacity, and heart rate variability to support long-term awareness. Hence, you can understand how daily habits, activity levels, and stress patterns influence your overall well-being.


Daily Readiness Score

Featuring a personalised Readiness Score, this ring evaluates key indicators such as sleep quality, resting heart rate, and body temperature. As a result, you can decide whether to focus on activity or recovery based on how prepared your body feels each day.


Automatic Activity Recognition

Capable of identifying over 40 activities automatically, this smart ring tracks movement along with heart rate data. In addition, personalised activity goals adjust based on your recovery signals. Thus, you can maintain balance between exercise and rest with guided insights.


Stress and Recovery Insights

Monitoring daytime stress patterns, cumulative strain, and resilience trends, this ring highlights how your body responds to daily demands. Therefore, you can identify stress triggers and support gradual recovery through mindful adjustments.


Women’s Health Tracking

Using temperature trends, this smart ring provides cycle insights and period predictions. Moreover, it integrates with compatible apps such as Natural Cycles and Clue for synced data sharing. Hence, you can monitor menstrual health with consistent tracking support.


Smart App Connectivity

Compatible with the Oura app on Android and iOS, this ring connects via Bluetooth BLE and supports automatic firmware updates. With 5-8 days of battery life and aeroplane mode support, you can rely on steady tracking with minimal interruption.


Water-Resistant Build

Designed with water resistance up to 100m, this smart ring supports usage during workouts, showers, and swimming sessions. The durable construction allows you to keep tracking active throughout daily routines.


Comfort-Focused Weight

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.


Lightweight Titanium Design

Made from titanium, this Oura ring offers a sleek and lightweight profile for continuous wear. Its smooth structure ensures a comfortable fit, so you can wear it day and night with ease.