Oura Ring 4 - Silver, Size 9 | Sleep, Activity & Women’s Health, AI Advisor, Up to 8 Days Battery | Android & iOS

Meet Oura Ring 4

Meet Oura Ring 4, the latest evolution of the quiet, unobtrusive wellness ring. Crafted in durable all-titanium, it houses Smart Sensing, a sensing platform that learns as you wear it and delivers meaningful, continuous data across more than 50 health metrics. In silver, size 9, this ring slips into your daily life with a comfortable fit you may barely notice, whether you’re sleeping, working out, or going about your day. The built-in AI Advisor analyzes patterns to surface practical, non-prescriptive insights you can act on at your own pace. With up to eight days of battery life and no screens or vibrations to distract you, you can wear it through routine activities—from a morning stretch to an evening out—without interruption.

What it tracks

• More than 50 metrics, including sleep stages, activity intensity, heart health indicators, stress signals, and women’s health data tracked by Smart Sensing
• Smart Sensing adapts to your rhythms, delivering accurate, continuous data day and night
• Readiness and metabolic signals help observe patterns over time for informed daily planning

Real-world use and benefits

• Sleep quality insights can inform your morning routine, recovery days, and energy management
• Energy trends and readiness scores support planning workouts, workdays, and downtime with less guesswork
• Long battery life minimizes charging interruptions across travel, family time, and workouts

Two practical enhancements accompany the ring to help you decide fit and value: a sizing kit to find your precise fit before purchase and easy finish switching when you own multiple styles. The Oura Membership unlocks additional data and insights in the companion app, with the first month included for new users. The ring is compatible with both iOS and Android devices, making integration with your existing smartphone ecosystem straightforward.

What you get and how it fits your life

• Sizing kit to ensure an accurate fit before you buy
• Up to eight days of battery life for uninterrupted wear across daily life and travel
• Multi-ring support to switch finishes in the app for different looks
• First month of Oura Membership included for new accounts
• HSA/FSA eligible purchases for the ring and accessories