Oura Ring 5 launches with 40% smaller design and new software upgrades for older models

Oura’s fifth‑generation smart ring arrived in May with a markedly smaller form factor – about 40 % less volume than the Ring 4, a width of just over 6 mm, thickness 2.3 mm and a weight of roughly 2 g. The device retains the same sensor suite (heart‑rate, SpO₂, temperature, motion) and offers a battery life of six to nine days, depending on size. It retails for $399 (≈£399) and requires a $5.99‑per‑month subscription for full access to metrics and analytics.

Starting in early July, Oura began rolling out a feature bundle to owners of Gen 3 and Gen 4 rings, slated to complete by July 7. New capabilities include Health Radar (continuous health‑signal monitoring), live activity tracking (real‑time pace, distance, heart‑rate), Locate (ring‑and‑case GPS/Bluetooth finder), GLP‑1 insights, lab‑result uploads, Health Records, Brain Health Check‑In, and Connected Care, the latter available in 43 U.S. states. The updates give older hardware a more current experience, though they do not match the Ring 5’s hardware.

Reviews note the substantial size reduction and improved battery life as major strengths, while the mandatory subscription and limited regional availability of some features (e.g., Health Radar, GLP‑1 insights) temper enthusiasm. Overall, the Ring 5 is positioned as a premium, fashion‑friendly health tracker that narrows the gap between smart rings and conventional wearables.