Oura Ring 4 debuts slimmer design, additional sizes, and improved sensing starting at $349
Oura on Thursday unveiled the fourth generation of its popular smart ring. The Oura Ring 4 arrives just under three years after its predecessor’s debut. Despite the gap, the new wearable largely refines — rather than reinvents — the experience. The most notable hardware change is the slimmer profile, an odd thing to say about […]








