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    The Oura Sizing Kit includes a full range of Oura Ring sample sizes, allowing you to test and find the one that fits your finger best. These lightweight, non-functional plastic rings mimic the exact dimensions of the real Oura Ring, so you can wear your chosen size for a full day—or even while you sleep—to be sure it’s the perfect match.

    Description

    Optimal Sensor Accuracy

    The Oura Ring’s sensors are most effective when the fit is snug and consistent. The sizing kit helps ensure your final ring sits exactly where it should for reliable health insights.

    Comfort, All Day and Night

    You'll wear your Oura Ring during sleep, workouts, meetings, and everything in between. Try different sizes to find one that fits your lifestyle as much as your finger.

    One-Time Fit Guarantee

    When you use the Sizing Kit and confirm your fit before ordering the ring, you reduce the chance of needing a size exchange—saving time and hassle.

    Oura Ring 4 Sizing Kit

    JZ98-54867 6430060152281
    $15
    Please allow up to 7 days for shipping

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