Deciding between the Oura Ring 5 and Oura Ring 4? Read our complete breakdown of the specs, pricing, and new AI-powered health insights for 2026. The Oura Ring 5 introduces a smaller, lighter design and enhanced health tracking capabilities compared to the Oura Ring 4. According to TechAvid, the Ring 5 is 40% smaller in volume and weighs between 2 and 2.69 grams, offering improved comfort for ... [6961 chars]