Smart Sleep Assessment

Designed to evaluate total sleep duration, heart rate variability, nighttime movement, and sleep consistency, this Oura Ring 4 Size 5 Smart Ring delivers a detailed sleep score each morning. In addition, it provides clear insights into deep, REM, and light sleep stages. Hence, you can understand your nightly recovery patterns and adjust your schedule to support improved rest.


Comprehensive Health Insights

Supporting 24/7 heart rate tracking, blood oxygen sensing, and temperature trend analysis, this size 5 smart ring offers continuous physiological data throughout the day and night. Features such as cardiovascular age, cardio capacity, and heart rate variability provide meaningful context about long-term heart performance. Therefore, you can observe how lifestyle habits and stress levels influence overall wellbeing.


Daily Readiness Evaluation

Featuring a Readiness Score generated from sleep quality, heart rate, and temperature patterns, this ring indicates how prepared your body is for activity. As a result, you can plan exercise sessions, work tasks, or recovery time in alignment with your energy levels.


Adaptive Activity Tracking

Capable of automatically detecting over 40 activities, this smart ring records movement along with heart rate response. In addition, personalised activity goals adjust based on recovery signals. Thus, you can maintain balance between movement and rest across different days.


Stress and Recovery Insights

Monitoring daytime stress patterns, cumulative strain, and recovery trends, this ring highlights how your body responds to daily demands. Hence, you can identify stress triggers and take steps to support resilience over time.


Women’s Cycle Support

Using temperature trends, this smart ring provides cycle insights and period predictions within the Oura app. Moreover, it integrates with compatible apps such as Natural Cycles and Clue, allowing synced menstrual health tracking.


Reliable Smart 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 experience consistent tracking with minimal interruption.


Water-Resistant Construction

Designed with water resistance up to 100m, this smart ring supports use during workouts, showers, or swimming. Therefore, you can continue health tracking without removing it during daily routines.


Minimal Weight 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.


Lightweight Titanium Build

Made from titanium, this Oura ring offers a slim and comfortable profile suited for continuous wear. Its smooth structure allows you to wear it throughout the day and night with ease.