Oura Ring 5 Review: Ultra-Compact Comfort, Great Battery, But No Trade-In Perk Yet

Six weeks with the Oura Ring 5 reveal a distraction-free, comfortable wear thanks to a 40% smaller design than Ring 4, about a week of battery life with faster charging, and a tougher, more scratch-resistant finish. The upgrade doesn’t hinge on new exclusive features since Ring 4 already benefits from Live Activity Tracking and women’s health features; and there’s no trade-in option for older rings yet—only recycling. So, upgrading is mainly about size if you’re choosing between Ring 4 and Ring 5, rather than chasing a raft of new capabilities.