OURA Ring 4 - Stealth - Size 10 - Smart Ring | Size First Ring 4 Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days Battery Life

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Compact and intelligent design for comfortable everyday wear

Advanced health monitoring capabilities, including heart rate, sleep patterns, and activity tracking

Long battery life with convenient wireless charging

Seamless smartphone app integration for detailed health and activity analytics

Available in multiple finishes and sizes for personalized style