Home Ideas Oura Ring 4 Review: A More Accurate and Wearable Smart RingTechIdeasOura Ring 4 Review: A More Accurate and Wearable Smart RingOctober 15, 20249FacebookTwitterPinterestWhatsApp oura ring 4 review a more accurate and wearable smart ring Many software and hardware updates to the latest Oura ring make it more accurate, useful, and easier to wear.Source: WIRED.com