Oura Ring 5 Smart Ring
The ring that Prince Harry, Kim Kardashian, Mark Zuckerberg, and the NBA all wear without being paid to just got its most significant update yet. The Ring 5 is 40% smaller than its predecessor, thin enough to pass for a standard wedding band, and most people won't clock it as a health tracker. Getting there required a full rebuild of every system inside the ring. The new Health Radar platform adds blood pressure signal monitoring during sleep, tracking overnight cardiovascular patterns that most wearables have never attempted passively, alongside a 30-day rolling view of nighttime breathing disturbances that can flag early signs of sleep apnea. Oura claims 99% heart rate accuracy against a medical ECG and 95% sleep staging accuracy against a clinical sleep lab. It tracks 50-plus health metrics, comes in titanium, and ships in six finishes.
