Xiaomi Watch S4 BT Calling Smart Watch – Black

Xiaomi Watch S4 BT Calling Smart Watch

Key Features:

• Premium 47mm smartwatch with aluminum alloy frame and interchangeable bezels
• 1.43-inch AMOLED display with up to 2200 nits peak brightness for crystal-clear visibility
• 24/7 heart rate, SpO2, stress, and sleep tracking for continuous wellness monitoring
• Dual-frequency GNSS with GPS, Galileo, GLONASS, BeiDou, and QZSS support
• Over 150 sports modes including ski-specific coaching and fall detection
• 60-second health report and guided breathing exercises for quick check-ins
• 15-day battery life with 5-minute fast charge for 2-day use
• Moisture-resistant touchscreen to prevent water-triggered input errors
• Supports NFC payments (Mastercard and Visa, region-dependent)
• Bluetooth 5.3 with call functionality via smartphone
• Speaker and dual microphones for clear audio performance
• Xiaomi HyperOS 2 compatible with Android 8.0+ and iOS 14.0+
• Xiaomi Smart Hub integration and third-party app sync with Strava, Suunto, and Health Connect
• Remote camera control, gesture commands, and Find My Phone feature
• 5ATM water resistance suitable for swimming (not for diving or high-pressure environments)

Technical Specifications:

• Dimensions: 47.3mm × 47.3mm × 12.0mm (excluding strap)
• Weight: Approximately 44.5g (without strap)
• Strap Options: Fluororubber or Nylon blends, 135–210mm adjustable
• Display: 466 × 466 resolution at 326 PPI, 60Hz refresh rate
• Sensors: Heart rate, SpO2, gyroscope, barometer, compass, accelerometer, light sensor, Hall sensor
• Battery: 486mAh lithium-ion, magnetic charging dock
• In the Box: Xiaomi Watch S4 (with bezel and strap), magnetic charger, user manual, warranty card