The Oura Ring 4 continues to come out on top for us, even as we add more smart rings to our testing lineup. As the most up-to-date version of Oura’s popular smart ring, the Oura Ring 4 brings new sensors and algorithmic improvements to an already powerful health-tracking device. This new iteration nixed the tangible sensors and cut back on the thickness to build an even sleeker and more comfortable model — but don’t worry, the data has only improved with each iteration.
From a health-tracking standpoint, the Oura Ring 4 gives you a holistic picture of your wellness: temperature variation, sleep analysis, blood oxygen monitoring, heart rate variability (HRV), resting heart rate, activity tracking, and daytime stress detection. If you wear it overnight, it automatically logs how long and how well you slept, how much time you spent in deep sleep, REM, and light sleep, and even gives you a readiness score each morning.
I personally love the sleep tracking feature on my own Oura Ring. It’s definitely my most-utilised metric — it’s the first thing I check every morning when I wake up. And I have to say, it’s highly accurate. I wake up at least once a night, and I’ll typically look at the clock when I do. When I check my Oura sleep metrics in the morning, it shows my midnight wake-up time almost exactly every time.
In addition to its accuracy and sleek look, the Oura Ring’s app is also a standout. It’s intuitive and easy to navigate, presenting your metrics in separate tabs so you know exactly where to look. One of the only downsides? To unlock all the features, you’ll need to sign up for a £5.99/month membership. But considering the insights you’ll gain into your sleep cycles, stress levels, and recovery patterns, we find it to be a worthwhile investment.
