Circular Smart Ring Is a Sleep, Fitness Tracker
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Here is a smart ring that helps you keep a closer eye on your health. The Circular Ring has a sleek design, infrared heart rate sensor, 3-axis accelerometer, an interchangeable shell, and a waterproof design. It combines with Kira on your phone to analyze night and day data to determine how you respond to your daily choices.
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Circular studies the user’s sleep and wakes them up in the light sleep stage. It is ready for heart rate zone training too. The device is smart enough to track your heart rate variability, disturbances, blood oxygen levels, and sleep quality.
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