Multi-System Satellite Positioning Supports GPS, GLONASS, BDS, Galileo, NAVIC, and QZSS with AGNSS for fast and precise location tracking.5ATM Waterproof & Durable Metal Body Zinc alloy housing, dustproof and drop-resistant design, ideal for swimming and outdoor activities.Comprehensive Health Tracking Monitors heart rate, SpO, stress, sleep, altitude, air pressure, and supports automatic sport recognition.Vivid AMOLED HD Display 1.43-inch full-touch AMOLED screen with 466466 resolution, customizable dials, and six theme styles.500mAh Long-Lasting Battery High-voltage polymer battery lasting about 3 days with calls and GPS, about 7 days for daily use, and up to 24 hours with continuous GPS.All health data is for reference only and not a substitute for professional medical advice.