The Oura Ring 4 is sleek and easy to wear but scratches easily. Here's what it's like
The Oura Ring 4. Courtesy: Oura After two weeks of wearing the Oura Ring 4, the smart ring gave me a better understanding of how my sleep, stress and exercise influence how I feel in my day-to-day life. The Oura Ring 4 began shipping to customers and became available in retail stores on Tuesday, and […]