The Amazfit Helio Ring is designed for elite athletes who demand optimal performance. It tracks your mental and physical readiness, sleep, and heart rate, helping you understand your body's response to stress and recovery. With features like in-depth sleep monitoring, mental readiness analysis, and stress tracking, this ring helps you form a winning ecosystem. It's crafted from a skin-friendly titanium alloy, making it ultra-lightweight and super slim. The Amazfit Helio Ring is also water-resistant up to 10 ATM, allowing you to track your performance in various conditions. Sync your data to fitness apps and view all your information in one place. Fast wireless charging is also available, ensuring you're always ready to go.