Oura - Ring 4 - Smart Ring - Ceramic Midnight Sizing Kit creating a sense of movement

creating a sense of movement and elongating the silhouette

Lightweight woven fabric delivers superior comfort & durability

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UPDATED SIZING: We revamped our bra sizing so you can find a fit that feels custom to your unique shape—check the size chart to find your perfect match

Perfect for intensive workouts or everyday comfort

Oura - Ring 4 - Smart Ring - Ceramic Midnight Sizing Kit creating a sense of movementOura Ring 4 Ceramic is a modern expression of our revolutionary smart ring technology that blends refined elegance with everyday comfort. The high performance ceramic exterior is designed to keep up with you and all that you do. The Ceramic Collection is available in four unique colours: Midnight, Petal, Tide and Cloud. Each new colour is built to accent your style and personality.