Oura's Ring 4 introduces a sleeker design with improved sensors that are flush against the body, enabling better body insights without compromising aesthetics.
The Ring 4 features 18 distinct signal pathways and a new Smart Sensing algorithm that enhances consistency in readings, addressing previous user concerns.
Significant improvements in blood oxygen sensing (30% increase) and fewer gaps in heart rate readings (31% fewer at night) make the Ring 4 more reliable.
With a battery life projected at up to eight days, the Ring 4 is set to offer longer usability without frequent recharging, a key advantage for smart rings.
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