OURA Ring 4 - Silver, Size 11 | Sleep & Activity Insights | AI Advisor | 8-Day Battery | Android & iOS

Discover Oura Ring 4

Meet Oura Ring 4, the latest evolution of the smart ring that blends style with data-driven insight. Crafted in durable all-titanium, it wears comfortably while quietly tracking more than 50 metrics via Smart Sensing. From sleep quality and daily activity to stress signals, heart health cues, metabolic indicators, and women’s health metrics, you gain a clear snapshot of your day without disrupting your routine.

How it works

A smart sensing platform continuously captures signals day and night, adapts to your patterns, and delivers personalized insights through the Oura App. With up to 8 days of battery life, you can wear it through workouts, commutes, and evenings out without distraction.

• Long-lasting battery: up to 8 days on a single charge, with no on-device screens
• Smart Sensing: adaptive tracking across 50+ metrics for a holistic view
• Discreet, all-titanium design for daily wear

Real-life use cases

Slip the ring on after your morning routine to capture last night’s sleep quality, check readiness before a workout, or monitor nighttime heart rate while winding down. In the office, it can help balance activity and recovery across a busy day. If you own multiple finishes, you can switch styles in the app to match your outfit or mood.

Sizing, fit, and style

Accurate sizing relies on the dedicated Sizing Kit to determine your perfect fit before purchase. The ring’s slim profile blends with any look, and with multi-ring support, you can store and swap between finishes in the app.

• Size before you buy with the sizing kit
• Change finishes in the app to match your look
• Multi-ring support to switch between finishes

Membership and eligibility

With your purchase, the first Oura Membership month is included for new members. After that, membership is 5.99 USD per month. The membership is tied to your Oura App account, not the ring itself. The ring, chargers, and shipping are eligible for HSA or FSA funds where allowed.

Compatibility

Oura Ring 4 works with both Android and iOS, syncing seamlessly through the Oura App so you can review metrics on your phone or tablet.