Even Realities - Even R1 Smart Ring - Size 13 - Gray

The Sizing Kit is a crucial first step for ensuring a perfect fit for the Even R1 smart ring. It includes a set of non-functional dummy rings in a full range of sizes (6 to 15). Since smart rings require a snug yet comfortable fit for accurate sensor readings, this kit allows you to test different sizes in real-world conditions before committing to your final Even R1 purchase. Because finger size naturally fluctuates with temperature, time of day, and activity level, wearing a test ring helps you find the "sweet spot"—a size that prevents light from interfering with the sensors without feeling restrictive.

Introducing the world’s smallest smart ring—Oura Ring 5, built with even more sensing power than previous generations. 40% smaller and ultra lightweight, Oura Ring 5 fits seamlessly in with your life and your style. The updated all-titanium design is more scratch-resistant and comfortable than ever, Oura Ring 5 delivers 50+ health metrics with research-grade accuracy. With 6-9 days of battery life you can even forget it’s on. No more compromises when it comes to tracking your health. IMPORTANT: Size yourself with the Oura Ring 5 Sizing Kit before you buy — Oura Rings are not US standard sizing and other Oura Ring generations, and finding the right size will result in the best experience possible. With an Oura Ring 5 Sizing Kit purchase, you will receive a $10 Best Buy gift card to use towards your Oura Ring 5 purchase.

Oura Ring 4 brings you closer to what matters most — your health. With an updated all-titanium design, this smart ring features Smart Sensing, a new sensing platform that doesn’t just measure your biometrics but also adapts to you. It provides insights into over 50 biometrics including sleep, readiness, activity, heart health, stress, metabolic health and women’s health.