Circular Ring 2
Device · Smart Ring
Circular Ring 2 is a smart ring device from Circular. Members commonly use it to track 10 biomarkers, including Blood Oxygen (SpO2), Daily Steps, Deep Sleep (Slow-Wave Sleep).
Biomarkers tracked with Circular Ring 2 (10)
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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.
About Circular
Circular makes a smart ring focused on sleep, heart rate, and daily energy tracking.
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