Oura Ring 4 Ceramic, Midnight Blue, Size 15, Smart Wearable, Sleep, Fitness & Heart Rate Tracker, 8-Day Battery (Size Before You Buy)

Oura Ring 4 Ceramic is a modern expression of our revolutionary smart ring technology that blends refined elegance with everyday durability. 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 colors: Petal, Tide, Midnight and Cloud. Each new color is built to accent your style and personality. This colorful new take comes with the same cutting-edge technology of Oura Ring 4. Track over 50 health metrics and get personalized insights into your sleep, activity, readiness, stress, heart health, metabolic health, women's health and more. It is built around a breakthrough sensing technology, Smart Sensing, which adapts to your finger to deliver accurate, continuous data. With 5-8 days of battery life, you'll see a complete picture of your health. It's designed with recessed sensors on the interior, making it comfortable and gentle, even on sensitive skin. Oura Ring 4 Ceramic comes in sizes 4-15 and three stunning finishes to fit your style and your finger, effortlessly. Oura Ring is FSA/HSA Eligible — we can accept FSA or HSA funds for the following: Oura Ring, additional chargers, and shipping. Oura Ring 4 Polishing Pad: Keep your Oura Ring 4 Ceramic looking like new with the Ceramic Polishing Pad, redeemable once you sync your purchase in the Oura App. Due to the hardness of the zirconia ceramic, it can take on the color of softer metals, like a dumbbell or cookware. Over time, you may notice grey marks on your Oura Ring 4 Ceramic. Rest assured, it's not damaged — it's evidence of a metal transfer and easy to remove with proper cleaning. Use caution when handling metal objects and consider removing your Oura Ring for some activities. The Oura Ring 4 Polishing Pad is your partner in keeping your ring in top condition.