OURA Ring 5 Smart Ring - Silver - Size 9 - Fitness & Sleep Tracker | World’s Smallest Smart Ring, Activity, Women's Health, AI Advisor, 1 Week Battery Life, IP68 Waterproof, Size Before You Buy

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 1 week of battery life you can even forget it’s on. No more compromises when it comes to tracking your health. Oura Ring 5 is FSA/HSA Eligible: we can accept FSA or HSA funds for the following: Oura Ring, additional chargers, and shipping. 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, an Amazon credit will automatically be applied to your Oura Ring 5 at checkout.