Oura Ring 4 Ceramic Petal — Sleep, Activity & Women’s Health | 8‑Day Battery | Android & iOS

Elegant tech meets daily wear

The Oura Ring 4 Ceramic Petal blends refined style with serious sensing technology. Built with a durable zirconia ceramic exterior, it sits comfortably on the finger while guiding you with data driven insights from sleep to activity.

What it tracks

Powered by Smart Sensing, the ring monitors more than 50 metrics, including sleep quality and stages, daily activity, heart health, stress indicators, and women’s health markers. The continuous data stream helps you observe patterns across days and nights.

• Sleep quality and stages
• Activity levels and resting energy
• Heart health metrics and heart rate variability
• Stress indicators and recovery trends
• Women’s health metrics and cycle information
• Metabolic health indicators

Why it matters for daily life

With up to 8 days of battery life and a design that avoids screens and vibrations, the ring works in the background while you focus on your day. The recessed interior sensors are gentle on sensitive skin and ready for long wear.

• Long lasting battery life up to 8 days
• Comfortable, recessed sensors for sensitive skin
• Sizing Kit to ensure the perfect fit before you buy
• HSA and FSA eligible purchases include the ring and accessories
• First month of Oura Membership included with new rings

Real world use cases

From a busy workday to a tranquil evening of sleep, the ring offers a consistent health snapshot and nudges you toward balanced routines. It can support tracking for sleep quality on red-eye flights, post workout recovery, and menstrual health considerations as part of a broader wellness routine.

Care and maintenance

Over time you may notice grey marks from metal transfer on the surface. This is not damage and can be cleaned. The Oura Ceramic Polishing Pad can help keep the finish looking fresh after syncing in the app.