The Zeblaze Stratos 4 is a ruggedized GPS smart watch designed for outdoor performance and technical tracking. ⌚ It features a 1.43-inch AMOLED display with high-resolution clarity, protected by a zinc metal bezel and stainless steel buttons for durability in harsh environments. 🏔️ This watch is equipped with integrated dual-band GPS, supporting five satellite systems for precise positioning during hiking, running, or cycling. 🛰️ It offers Bluetooth voice calling capabilities, allowing for direct communication when synchronized with a smartphone. 📞 For health monitoring, the Stratos 4 includes high-performance sensors for tracking heart rate, blood oxygen levels, and sleep quality. 🩺 The device is rated for 5 ATM water resistance, making it suitable for swimming and open-water activities. 🌊 It is powered by a 600mAh battery, providing a long runtime of up to 20 days under typical usage or 45 days in battery saver mode. 🔋 With over 100 workout modes, it provides detailed data metrics for a wide range of athletic activities. 🏃 1.43 inch AMOLED Display (466x466 resolution) Integrated Dual-Band GPS (GPS, GLONASS, GALILEO, BEIDOU, QZSS) 600mAh Battery (Up to 20 days usage / 45 days power save) 5 ATM Water Resistance (50m) Bluetooth 5.3 for voice calls and music control Zinc Metal Bezel and Stainless Steel Buttons Heart Rate and SpO2 Blood Oxygen Monitoring 100+ Workout Modes with automatic detection Compass and Barometric Altimeter Sleep Quality and Stress Level Tracking Notification support for calls, SMS, and apps Magnetic charging interface