Oura Ring 4 - Brushed Silver (Size 6) | Sleep, Activity & Women’s Health AI Advisor | Up to 8 Days Battery Life

Overview

Meet the Oura Ring 4, a refined all titanium smart ring designed for daily wear. The brushed silver finish pairs with a modern look while Smart Sensing continuously collects data day and night, adapting to you to deliver meaningful insights. An AI Advisor in the app helps translate patterns into easy-to-understand feedback, so you can explore your health data without distraction. With up to eight days of battery life and a lightweight, quiet profile, it stays behind the scenes while you focus on your day.

Built for real life, Oura Ring 4 supports multiple finishes and seamless style swaps. If you own more than one ring, you can switch between finishes in the app. The included Sizing Kit helps you find a precise fit before you buy, supporting a comfortable, all-day wear experience.

What you will notice in your data

• Tracks sleep, activity, readiness, heart health, stress, metabolic signals, and women’s health metrics with ongoing accuracy.
• Smart Sensing adapts to you, delivering continuous data with day and night consistency.
• AI Advisor interprets the data to highlight patterns and practical, non-medical insights.

Designed for daily life

Oura Ring 4 is lightweight, discreet, and water resistant, making it comfortable for all-day wear—from workouts to evenings out. The ring is designed to perform without screens or vibrations, so you can stay present while your data quietly accumulates in the app.

• Long battery life means fewer interruptions between charges—up to eight days depending on use.
• All-day comfort and a subtle silhouette help it blend with your routine, not define it.
• Android and iOS compatibility keeps your data synced across devices.
• HSA/FSA eligible for eligible items, including the ring, chargers, and shipping.

Membership and value

The first month of Oura membership is included with new Ring 4 purchases. After that, the ongoing plan is a monthly fee, giving you continued access to insights in the Oura App to help you track trends and personalize your experience.