In-Depth Sleep Insights

Engineered to track total sleep duration, heart rate variability, nighttime movement, and sleep consistency, this Oura Ring 4 Size 13 Smart Ring delivers a comprehensive sleep score each morning. In addition, it provides insights into deep, REM, and light sleep stages. Therefore, you can evaluate your rest patterns and make informed adjustments to improve nightly recovery.


Intelligent Health Tracking

Enabled with 24/7 heart rate monitoring, blood oxygen sensing, and temperature trend measurement, this size 13 smart ring captures ongoing physiological data. As a result, you can understand how lifestyle habits, stress levels, and environmental factors influence your overall wellbeing. Metrics such as cardiovascular age, cardio capacity, and heart rate variability provide meaningful long-term health perspectives.


Daily Recovery Guidance

Equipped with a Readiness Score, this ring assesses sleep quality, heart rate, and temperature signals to reflect how prepared your body is for the day ahead. Hence, you can decide whether to focus on productivity, exercise, or rest based on personalised recovery insights.


Intelligent Activity Tracking

Supporting automatic recognition of over 40 activities, this smart ring records movement along with heart rate patterns. In addition, dynamic activity targets adjust according to your recovery data. Thus, you can maintain a steady balance between physical effort and adequate rest.


Daytime Stress Overview

Tracking stress patterns, cumulative strain, and recovery responses, this ring highlights how your body reacts to daily pressures. Therefore, you can identify stress triggers and gradually strengthen resilience through consistent monitoring.


Cycle and Period Insights

Utilising temperature trend analysis, this smart ring offers menstrual cycle insights and accurate period predictions. Moreover, compatibility with apps such as Natural Cycles and Clue allows synced health tracking through the Oura app. Hence, you can manage cycle data with clarity and convenience.


Seamless App Integration

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 availability, you can experience steady performance with minimal charging interruptions.


Water-Resistant Construction

Rated for water resistance up to 100m, this smart ring supports usage during workouts, showers, and swimming sessions. The robust structure allows uninterrupted health tracking across varied daily activities.


Balanced Lightweight Design

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 Finish

Constructed from titanium, this Oura ring presents a slim and lightweight profile suited for continuous wear. Its smooth design ensures comfortable day-and-night usage, allowing you to monitor health metrics without inconvenience.