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Available in 10 sizes from 5 to 14. Get the Ultrahuman Ring AIR Sizing Kit to guarantee the perfect fit before purchasing your ring Sleep Index is

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Introducing the Ultrahuman Ring AIR, the ultra-comfortable fitness wearable. With its notch-less, ultra-thin design and smooth inner shell, the Ring AIR offers unparalleled comfort day and night. It excels in sleep tracking, providing a comfortable and unobtrusive experience. Weighing just 2.4 grams, it is the lightest smart ring on the market.

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Available in 10 sizes from 5 to 14. Get the Ultrahuman Ring AIR Sizing Kit to guarantee the perfect fit before purchasing your ring Sleep Index is

Ring AIR: Sleep,Recovery & Workout Tracking, Menstrual & Pregnancy Insights, HRV, 6 Days Battery, Lifetime Free Subscription

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