Experience the future of health monitoring with the Saturn Smart Ring. This elegant and technologically advanced smart ring is the perfect companion for keeping track of your health and physical activity. Lightweight and discreet, it's so comfortable you'll hardly notice you're wearing it, yet it's packed with extraordinary power to care for your well-being every day.The Saturn Smart Ring is the discreet and powerful solution for monitoring your health and physical performance, all while enjoying style and comfort.Health Monitoring: Tracks heart rate, blood oxygen levels, and stress levels around the clock Data Access: Real-time updates via a dedicated app, with automatic synchronization when the connection is restored Sleep Management: Automatically detects rest periods, monitoring REM sleep, light sleep, and deep sleep to improve your sleep habits Water Resistant: Certified 5 ATM, water-resistant up to 50 meters for 30 minutes—perfect for swimming, showering, or other daily activities Sports and Fitness Tracking: Compatible with a variety of sports activities and training progress Charging: 1-hour charge provides up to 3 days of battery life. Comes with a portable charging case for up to 13 charges without a power connection Specifications: Battery: 15 mAh (ring) / 200 mAh (case) Battery Life: Up to 3 days Charging Time: 1 hour Protection Rating: IP68/5ATM App: Saturn Ring Compatibility: Android 5.1 / iOS 8.0 and above Material: Stainless Steel + Resin + ABS Sizes: XS (18.1 mm), S (19.1 mm), M (20 mm), L (20.6 mm), XL (21.4 mm)