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Oura Ring 4 is slimmer, more accurate and ready to take on the Samsung Galaxy Ring

Oura's updated smart ring is packed with improvements to keep the competition at bay

The company’s new Smart Sensing platform is powered by an algorithm that works alongside the research-grade sensors within the Oura Ring 4 that respond to each user’s unique finger physiology. Oura says an external study showed a 120% improvement in signal quality for blood oxygen sensing and a 30% increase in accuracy in average overnight SpO2 measurement. However, to access all the metrics and data the ring provides and personalized guidance, you’ll need an Oura Membership which costs $6 per month or $70 for an annual subscription.

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