lumthou HSR03 - 9

Product Overview: This smart ring is your ultimate health and fitness companion, integrating multiple precision sensors to provide accurate health monitoring and activity tracking. Crafted with hypoallergenic stainless steel and epoxy resin inner layer, it's lightweight and comfortable for all-day wear.

Key Features: Comprehensive Health Monitoring: Precisely tracks seven key health metrics: heart rate, blood oxygen saturation (SpO2), heart rate variability (HRV), stress levels, period prediction, activity status, and skin temperature trends. Set automatic checks every 30 minutes in the app to continuously log your health data trends. Multiple Sports Modes: Features 12 professional sports modes including running, cycling, swimming, yoga, weightlifting, hiking, and badminton. Automatically detects activities and tracks duration, calories burned, and heart rate zones. Scientific Sleep Analysis: Utilizes multi-sensor fusion algorithm to analyze deep sleep, light sleep, and REM sleep stages. Provides personalized sleep score and improvement insights. Smart Interaction & Data Sync: Supports gesture control for hands-free photos and music control. Features Data Sync Assurance - stores data locally when disconnected and resyncs automatically upon reconnection. Long Battery Life & Protection: Offers up to 5 days battery life with IP67 waterproof rating that protects against sweat, rain, and swimming.

Product Information: Connection: Bluetooth (33 ft/10m range, requires manual reconnect if disconnected) Battery Life: Up to 5 days Waterproof Rating: IP67 Monitoring Functions: 7 health metrics Sports Modes: 12 professional modes Data Sync: Apple Health & Google Fit compatible APP Support: 30+ languages

Purchase Assurance: All core health features are free for life - no subscriptions. Backed by 30-day risk-free guarantee.