Oura Ring 4 Ceramic Petal (Size 8) – Sleep, Activity & Women’s Health | 8 Days Battery | Android & iOS

Meet the Oura Ring 4 Ceramic Petal

The Oura Ring 4 Ceramic Petal is a refined wearable that blends elegant design with robust sensing. The exterior is a high-performance zirconia ceramic finished in Petal, a color that complements daily style. This ceramic collection also includes Tide and Cloud, with sizes ranging from 4 to 15. When you buy, you have the option to size accurately using the Oura Ring Sizing Kit, which helps ensure you get the best fit from day one.

Smart Sensing that fits you

Oura Ring 4 is powered by Smart Sensing, adapting to your finger to deliver continuous data, day and night. It tracks over 50 health metrics across sleep, activity, readiness, stress, heart health, metabolic health, and women’s health, offering personalized insights via the Oura App. The emphasis is on patterns and context rather than a single measurement, helping you understand how your habits influence your days.

Design, comfort, and durability

The recessed sensors live on the interior for a gentle feel against the skin, making it comfortable for all-day wear, including when you are sleeping. The ceramic exterior is both durable and resistant to everyday wear, and the Petal color subtly elevates your look whether you are at the gym, at work, or socializing.

Power, compatibility, and value

• Up to 8 days of battery life on a single charge, supporting longer wear between charges.
• Android and iOS compatibility with the Oura App for seamless data access.
• First month of Oura Membership included for new users; ongoing membership is optional.
• HSA/FSA eligibility for the ring, chargers, and shipping.

Care and maintenance

Ceramic can show subtle grey marks from metal transfer during wear; this isn’t damage and can be cleaned. The Oura Ceramic Polishing Pad helps maintain the finish when used as directed after syncing in the app. Handle metal objects with care and consider removing the ring during certain activities to preserve the surface.

Fit and setup

In addition to the ring, you’ll find a sizing kit to verify your fit before purchase, helping you avoid sizing surprises. Remember, ceramic rings use sizing that is different from standard jewelry, so sizing kit guidance is important.