When it comes to style and design, the Oura has the Ultrahuman on toast. The Ultrahuman Ring Air is lighter...less premium, and it picks up far more scratches than the Oura, too.
Oura's ecosystem is built around sleep tracking - and it's excellent at what it does. It has some of the most accurate sleep tracking of any wearable...The heart rate accuracy is also top-notch.
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