Rotary Encoder Crown: The rotary crown provides a richer and more intuitive operation experience, allowing for seamless navigation and control.Smooth Interaction: With a screen refresh rate of up to 60FPS, every interaction is as smooth as silk, enhancing the overall user experience.1.99-Inch AMOLED HD Display: The ultra-narrow black bezels offer a more expansive viewing area, creating an immersive and elegant visual experience. The watch features animated, interactive, and customizable watch faces, with over 100 exquisite options, including always-on display (AOD) faces that bring all the exciting content to your wrist.Sleek and Lightweight Design: With a slim body measuring approximately 10.5mm and a lightweight design, the metallic mid-frame adds a touch of elegance, making every gesture stylish.Advanced Health Monitoring: Featuring a fifth-generation optical structure design, the watch provides continuous monitoring of heart rate, blood oxygen levels, stress, and sleep, along with support for respiratory rate and HRV monitoring. This comprehensive health tracking helps safeguard your well-being around the clock.Versatile Sports Modes: The GTX13 supports a variety of sports modes, including running, hiking, and cycling. It records real-time workout data, allowing you to understand your physical state, make scientific adjustments, and enhance your exercise efficiency, helping you pursue your passion.Convenient Calling: Whether you are at home doing chores, taking a walk, cycling, or running, you can answer phone calls with a simple raise of your wrist.