Oura Ring 4

The Oura Ring 4 has unveiled a groundbreaking enhancement with its impressive 8-day battery life, quietly challenging the norms of health-tracking wearables. While competitors often tout a few days of endurance, Oura's latest iteration lives up to its promise with a sleek, longer-lasting performance that keeps users powered through week-long adventures-or, more practically, through a full cycle of sleep, activity, and health metrics. For those eyeing the brushed silver or black variations, the Ring 4's design is as much about style as it is about science: the silver model, sized to fit comfortably on a finger that's not too thin, and the black one, crafted for those who prefer a bold, minimalist aesthetic, both offer the same robust features, including heart rate monitoring, sleep analysis, and fitness tracking. But the real magic lies in the sizing kit-a clever addition that ensures your fit is flawless (and your purchase feels more thoughtful) by letting you test the ring's snugness before committing. With a little extra care in sizing and a surge of practicality in battery, the Oura Ring 4 isn't just an upgrade; it's a redefinition of what a health tracker can be.