About this product

Xiaomi Watch S4 (47mm) – Power, Precision, and Performance.
The Xiaomi Watch S4 (47mm) combines a sleek aluminum alloy design with powerful performance, intelligent health tracking, and long-lasting battery life. Featuring a vivid 1.43-inch AMOLED display, advanced multi-satellite GPS, and up to 15 days of typical use, it’s built to support your active lifestyle with style and reliability.

Key Features

Premium Aluminum Alloy Build
Crafted with a durable aluminum alloy frame, the Xiaomi Watch S4 delivers a modern, lightweight design that’s both comfortable and resilient. Available in multiple strap options, including fluororubber and a stylish fluororubber + nylon combination, each designed for comfort and everyday wear.

Vibrant AMOLED Display
Experience remarkable clarity with a 1.43-inch AMOLED display boasting a 466 × 466 pixel resolution, 326 PPI, and a 60Hz refresh rate. With HBM 1500 nits brightness, your screen remains vivid and easy to read even in direct sunlight.

Advanced Health Monitoring
Track your health comprehensively with an array of precision sensors, including a heart rate sensor with blood oxygen (SpO₂) monitoring, accelerometer, gyroscope, barometer, ambient light, electronic compass, and Hall sensor.

Accurate GPS Tracking
Navigate with confidence using multi-system satellite positioning (GPS, Galileo, Glonass, BeiDou, QZSS) for enhanced route accuracy in various environments.

Exceptional Battery Life
With a 486mAh battery, the Xiaomi Watch S4 offers up to 15 days of typical usage—perfect for extended adventures or daily wear without frequent charging.

Smart Features and Connectivity
Stay connected with Bluetooth 5.3, NFC, and Bluetooth calling supported by dual microphones and a built-in speaker. Manage calls, access voice features, and control your watch effortlessly through Xiaomi HyperOS 2.

Water Resistance
Rated 5ATM water-resistant, the watch can be safely used in swimming pools, near shorelines, or during shallow-water activities. (Not suitable for hot showers, saunas, or diving.)

Technical Specifications

Dimensions & Weight

• Size: 47.3 × 47.3 × 12.0 mm (excluding strap and protrusions)

• Weight: approx. 44.5g (without strap)

Frame & Strap Options

• Frame: Aluminum alloy

• Strap options:

  • Black: Fluororubber, adjustable 140–210 mm

  • Silver: Fluororubber, adjustable 140–210 mm

  • Rainbow: Fluororubber + nylon, adjustable 135–210 mm

Display

• 1.43-inch AMOLED display

• Resolution: 466 × 466 pixels (326 PPI)

• Refresh rate: 60Hz

• Brightness: up to 1500 nits (HBM mode)

Sensors

• Heart rate (with SpO₂)

• Accelerometer

• Gyroscope

• Ambient light

• Electronic compass

• Barometer

• Hall sensor

Battery

• Capacity: 486mAh

• Typical usage: up to 15 days

Connectivity

• Bluetooth® 5.3

• NFC (availability may vary by region)

• Built-in GNSS: Supported

• Bluetooth calling: Supported (requires phone connection)

Operating System

• Xiaomi HyperOS 2

• Compatible with Android 8.0+ and iOS 14.0+

Water Resistance

• 5ATM (up to 50 meters)

Charging

• 2-pin magnetic charging dock

Package Contents

• Xiaomi Watch S4 (47mm, including bezel and strap)

• Magnetic charging dock

• User manual (including warranty notice)