Oura unveiled its fifth‑generation Oura Ring 5, a device that feels more like a traditional wedding band than any of its predecessors. At 40% smaller than the Ring 4, the new model measures 6.09 mm wide and 2.29 mm thick, shaving nearly a millimeter off both dimensions. The slimmer silhouette aims to quiet long‑standing complaints about bulk while keeping a week‑long battery life.

Beyond size, Oura upgraded its sensor stack, adding stronger LEDs and twelve enhanced signal pathways to improve contact across diverse finger types and skin tones. Health Radar, the firm’s continuous monitoring suite, now surfaces nighttime blood‑pressure trends and a 30‑day rolling view of breathing disturbances, flagging patterns that could indicate cardiovascular strain before they surface in daytime readings.

The ring launches for $399 in black or silver, with premium finishes priced at $499, and requires a $5.99‑per‑month Oura Membership for full analytics. A partnership with Counsel Health injects AI‑driven on‑demand care into the app, while Health Records lets users import clinical data. By shrinking the form factor and deepening health insights, Oura positions the Ring 5 as a serious contender to the Apple Watch.