Key features

• •Size Before You Buy: O Ring smart rings use a unique design that differs from standard ring sizes. please using our O Ring sizing kit to find your perfect size and test-wearing it for 24 hours to ensure all-day comfort.
• •All-Day HRV Stress Tracking: OPOVE smart ring manage Stress with Personalized Insights. O Ring automatically detects stress levels every hour using advanced HRV monitoring. Receive actionable recovery tips to optimize mental balance—effortlessly track your body's response without interrupting daily life
• •Advanced Sleep Analysis: Achieve Deep, Restorative Sleep. Clinically precise sleep staging (Deep/Light/REM), overnight HRV trends, and blood oxygen monitoring. O Ring unlocks your sleep score with tailored improvement goals to wake up refreshed and energized
• •3-Activity Fitness Tracker: O Ring tracks steps, distance, and calories burned via intuitive triple-ring targets. Perfect for workouts, walks, or daily routines—turn activity into achievement with real-time progress updates
• •Women's Wellness Support: The fitness ring is equipped with cycle tracking & predictions, log periods, forecast fertility windows, and sync data with health trends, which is designed for holistic female cares—privacy-focused insights for informed wellness decisions
• •Privacy-First Comfort: Wear 24/7, no pressure. Titanium alloy waterproof build ensures featherlight, all-day comfort. Experience 7 days battery life, zero notifications/screen exposure, and 100% local data encryption for total peace of mind