Oura’s next-gen ring is a significant upgrade, featuring a sleeker design, longer battery life, and smarter sensors to provide deeper insights for wearers. The Ring 4 boasts 18 signal pathways, increased from eight in the previous generation, along with a new Smart Sensing algorithm. Automatic heart rate and activity detection for up to 40 activities are some of the new features, and the ring comes in six colors, priced starting at $349. Additionally, two Harvard students developed a facial recognition technology and large language model to reveal personal details of subjects, while the long-awaited Polestar 3 SUV finally had a test drive after delays, and Tesla’s Model 3 now starts at $42,500.