Ring 4 Sizing Kit - Size Before You Buy The Oura Ring 4 - Unique Sizing, Not Standard US Ring Sizes - Receive Credit for Purchase

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💍 Size smart, live smarter with the Oura Ring 4 Sizing Kit!

The Oura Ring 4 Sizing Kit offers a unique, non-standard sizing system designed specifically for the Oura Ring 4. Featuring heart rate monitoring, activity tracking, and sleep monitoring capabilities, this wireless, lightweight kit ensures you find your perfect fit before purchase, with credit applied towards your final order.