Xiaomi S4 Ultra AMOLED GPS Smartwatch

Product Description:
Level up your fitness and outdoor adventures with the Xiaomi S4 Ultra Outdoor Smart Watch — a powerful combination of performance and rugged design. Featuring a 1.53" AMOLED HD screen, Bluetooth calling, NFC, compass, and real-time tracking, this all-in-one smartwatch is tailored for men who demand style, durability, and cutting-edge tech.

Whether you're hiking, swimming, cycling, or commuting, the IP68 waterproof rating, professional-grade tracking, and heart rate monitoring make this your go-to companion.

🔑 Key Features:

📱 1.53" AMOLED HD Display – 360×360 resolution for crisp outdoor readability

💬 Bluetooth Calling + Voice Assistant – Answer, dial, and control hands-free

📍 GPS & Compass – Real-time route tracking and built-in digital compass

🧭 NFC Functionality – Unlock doors and enable smart access (region dependent)

❤️ Advanced Health Tracking – Blood pressure, heart rate, oxygen, sleep, and stress

🏃 100+ Sports Modes – Track distance, steps, calories, speed & performance

💧 Waterproof Rating: IP68 – Swim-grade resistance for full fitness freedom

🔋 Battery Life: Up to 5 days (300–450mAh battery)

🔗 Bluetooth Version 5.3 BLE – Stable, low-power connection

📱 App: RDFit – Sync with iOS and Android (Android 4.4 / iOS 9.0 and above)

⌚ Design: Metal body, round dial, 22mm detachable silicone strap