Dual-Frequency High-Precision GPS Supports L1+L5 positioning with GPS, GLONASS, BDS, Galileo, NAVIC, and QZSS for faster and more accurate tracking, plus AGPS for improved satellite acquisition. 5ATM Waterproof & Durable Build Zinc alloy body with dustproof, drop-resistant design and waterproof speaker, suitable for swimming and various outdoor environments. Advanced Health Monitoring Tracks heart rate, SpO, stress, altitude, air pressure, sleep, and supports multiple sports data metrics, including automatic sport recognition. Vivid AMOLED HD Display 1.43-inch full-touch AMOLED screen with 466466 resolution, customizable watch faces, and 6 theme styles for a personalized experience. Long-Lasting 500mAh Battery High-voltage battery designed for extended performance, supporting multiple days of mixed use with GPS and continuous health tracking. All health-related measurements are for reference only and are not a substitute for professional medical advice. Risk-Free Shopping We offer free returns for any reason. If there is a quality issue, we will replace the product for free. Your satisfaction is our top priority.