Oura Ring 4
Device · Smart Ring
Oura Ring 4 is a smart ring device from Oura. Members commonly use it to track 11 biomarkers, including Blood Oxygen (SpO2), Daily Steps, Deep Sleep (Slow-Wave Sleep).
Biomarkers tracked with Oura Ring 4 (11)
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Tracking methods
Sleep Tracking Devices ›
Using rings, watches, or bedside devices to track sleep stages, heart rate, and breathing at night. Popular for helping spot sleep patterns and see how habits affect rest.
Recovery Score Optimization ›
Using a wearable's daily recovery or readiness score, often based on heart rate variability and sleep, to guide training. Commonly used to help decide when to push hard and when to rest.
About Oura
Oura makes a smart ring that tracks sleep, HRV, resting heart rate, and body temperature. Oura also offers blood test panels that bring lab results into the same app.
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