Smart Ring Gen 3,IP68 Waterproof Health Tracker with No Subscription Fee, 24/7 Heart Rate, Sleep & SpO2 Monitor, HRV & Stress Tracking Fitness Ring for Men Women, Android/iOS

[Size Before You Buy] AutrefoisElf uses a unique sizing system that differs from standard U.S. ring sizes. Using the AutrefoisElf Sizing Kit ensures a comfortable fit, reliable sensor contact, and accurate data tracking before purchase

[24/7 Advanced Health Hub] Elevate your wellness with the AutrefoisElf Smart Ring Gen 3. Powered by a high-precision core chip, it delivers higher accuracy, faster response, and lower power consumption for real-time monitoring of 10 essential metrics. Track your Heart Rate, SpO2, HRV, and Stress with professional accuracy. Our dedicated app offers lifetime free access to all health data—no subscriptions.

[Intelligent Sleep & Recovery Tracker] Our upgraded system supports 24-hour automatic sleep monitoring, outperforming common fixed-time trackers. It captures precise data on Deep Sleep, Light Sleep, REM stages, and Wake times. By analyzing nocturnal HRV and respiratory quality, it generates a daily Recovery Score, allowing you to understand your body’s readiness and adjust your daily intensity for optimal performance.

[Fitness Activity Tracker] This fitness ring acts as a comprehensive fitness tracking smart ring, monitoring daily steps, distance, and calories burned with high precision. With 189 Sports Modes Tracking, it supports running, cycling, jump rope, boxing, yoga, golf, and even water/ice sports. It records detailed exercise data across various activities, providing professional insights to help you achieve your fitness goals effortlessly.

[Waterproof & Long-Lasting Battery Life] Engineered with a 6mm width and a micro-matte scratch-resistant finish, this fitness tracker ring is certified with IP68 waterproof technology—perfect for water sports and daily showers. Experience ultimate efficiency with a quick 1-hour charge providing 5-7 days of use. Available in 9 sizes (Size 6-14), it’s the perfect long-lasting tech gift for parents, partners, or fitness enthusiasts.