Oura has surprised the wearable tech world by launching the Oura Ring 5, breaking its usual three-year update cycle. The new ring is the smallest the company has ever made, measuring just 6.09mm wide and 2.28mm thick, with a weight as low as 2g depending on size. Oura says the smoother curvature is designed to feel more natural on the finger, addressing a common complaint about previous models feeling bulky.
The ultra-thin design required a complete rethinking of the ring's internal architecture, including mechanical, electrical, optical, battery and sensing systems. Oura claims the new ring uses lower-profile sensor domes for better skin contact, more powerful LEDs, and twelve stronger signal pathways to improve accuracy for different finger types and skin tones. This should deliver more reliable readings for overnight heart rate, workout heart rate, and signal quality.
Battery life remains up to nine days, thanks to a redesigned battery system. The ring is available in sizes six to 13, with finishes including standard silver, black, gold, stealth, brushed silver, and a new deep rose. A new scratch-resistant coating is said to better withstand everyday wear. The portable charging case has also been updated, storing enough power for up to five full charges, but it is sold separately for around £100.
New software features accompany the launch, many coming to older generations as well. Live workout tracking is now available in the Oura app, showing real-time metrics like pace, distance and heart rate for running, cycling and strength training. Users can also connect third-party heart rate monitors and supported fitness devices. Women's health features include menopause insights with a symptom tracking dashboard, and hormonal birth control tracking to show how contraceptives affect biometric data.
The symptom radar has been expanded into health radar, continuously monitoring biometric patterns in the background to surface potential health issues. This includes blood pressure signals to detect changes in cardiovascular strain and rising blood pressure, looking for long-term overnight trends. The ring can also monitor whether blood pressure naturally drops during sleep, an important cardiovascular marker. Nighttime breathing insights are provided with a 30-day view of any irregularities.
