📄 Product Description – Xiaomi Watch S4
A premium round smartwatch featuring an aluminum alloy frame, a classic rotating crown, and a bright 1.43″ AMOLED display with 466 × 466 resolution, 326 PPI, and 60Hz refresh rate. It reaches 1,500 nits (HBM) and up to 2,200 nits (Peak) for excellent readability. Powered by Xiaomi HyperOS 2, it offers 150+ sports modes, multi-satellite GNSS (GPS/Galileo/GLONASS/BeiDou/QZSS), and comprehensive health tracking including heart rate, SpO₂, sleep, and stress. It supports Bluetooth calling with a built-in speaker and 2 microphones, and a 486mAh battery rated for up to 15 days typical use, plus fast charging where 5 minutes can deliver up to 2 days of use.

⭐ Key Features:
– 🔹 Model – M2425W1
– 🔹 Display – 1.43″ AMOLED | 466 × 466 | 326 PPI | 60Hz
– 🔹 Brightness – 1,500 nits (HBM) | 2,200 nits (Peak)
– 🔹 Design & Control – Rotating crown + Interchangeable bezel support
– 🔹 Sensors – Heart rate (with SpO₂) | Accelerometer | Gyroscope | Ambient light | Compass | Barometer | Hall sensor
– 🔹 GNSS – GPS | Galileo | GLONASS | BeiDou | QZSS
– 🔹 Calling – Bluetooth Calling + Speaker + 2 mics
– 🔹 Connectivity – Bluetooth 5.3 | NFC (region dependent)
– 🔹 Water Resistance – 5ATM (for shallow water activities; not for hot showers/sauna/diving)
– 🔹 Battery & Charging – 486mAh | up to 15 days typical | 2-Pin magnetic dock | 5 min = 2 days
– 🔹 Size & Weight – 47.3 × 47.3 × 12.0mm | 44.5g (without strap)
– 🔹 Compatibility – Android 8.0+ | iOS 14.0+

🎯 Closing Paragraph:
Xiaomi Watch S4 is built for users who want a bright AMOLED screen, reliable GNSS sports tracking, Bluetooth calls, and long battery life—wrapped in a classic, customizable watch design.

⚠️ Important Note:
Health features are for general wellness purposes and are not intended for medical use.

⚠️ Notice:
NFC availability varies by region. Third-party app voice calls are typically not supported, and calling requires a Bluetooth connection to the phone.