Xiaomi Watch S4 Sport User Manual

1. Introduction and Overview

The Xiaomi Watch S4 Sport is a professional sports smart watch designed for active lifestyles, offering advanced health monitoring, robust sports tracking, and smart communication features. It combines a hardcore aesthetic design with cutting-edge technology to provide a comprehensive wrist experience.

Key Features:

• Health Monitoring: All-day heart rate, blood oxygen, skin temperature, sleep, and stress detection.
• Professional Sports Tracking: Supports six major outdoor sports, professional training evaluation, lactic acid threshold, and peak training effect analysis with SUUNTO motion algorithm support.
• Advanced Positioning: Dual-frequency five-star GNSS positioning and offline map support for precise route navigation.
• Independent Communication: eSIM functionality for wrist-independent calls and communication.
• Durable Design: Integrated titanium alloy fuselage, sapphire glass, and 5ATM waterproof rating for diving up to 40 meters.
• Long Battery Life: Up to 15 days in typical Bluetooth usage, 9 days with eSIM, and 26 hours with dual-frequency all-star motion.
• Smart Connectivity: NFC for car keys and active information reminders.

2. Setup Instructions

Before using your Xiaomi Watch S4 Sport, please follow these steps for initial setup:

1. Unboxing: Carefully remove the watch and all accessories from the packaging.
2. Initial Charge: Connect the watch to the magnetic charging cable and plug it into a USB power source. Ensure the watch is fully charged before first use.
3. App Installation: Download and install the 'Xiaomi Sports Health App' on your smartphone. The app is compatible with Android 8.0 or iOS 12.0 and above.
4. Pairing: Open the Xiaomi Sports Health App, create an account or log in, and follow the on-screen instructions to pair your watch.
5. Region Setting (Important for China Version): If you have the China version of the watch, you must change the region of the Xiaomi Sports Health App to "China Mainland" for full functionality. If your Mi Home account is already connected to devices in other regions, it cannot connect to China devices simultaneously.
6. Language Selection: The Chinese version currently supports Simplified Chinese, Traditional Chinese, and English.
7. eSIM Activation (Optional): If you plan to use eSIM communication, please note that its availability and specific opening procedures depend on your local mobile operator.

3. Operating Instructions

3.1 Basic Navigation

The Xiaomi Watch S4 Sport features a large rotating crown and two function buttons for intuitive control. The anti-slip pattern on the crown ensures accurate operation, even when wearing gloves.

3.2 Health Monitoring

• Heart Rate Monitoring: Supports all-day heart rate monitoring with automatic detection and high/low heart rate reminders.
• Blood Oxygen Monitoring: Provides all-day oxygen saturation monitoring with low-time vibration reminders.
• Skin Temperature Detection: Adopts high-precision contact conduction temperature measurement algorithm for real-time skin temperature tracking.
• Sleep Monitoring: Tracks sleep patterns and provides insights into sleep quality.
• Stress Detection: Monitors stress levels throughout the day.

3.3 Sports Tracking

The watch offers professional sports tracking with SUUNTO motion algorithm support.

• Professional Sports Tests: Includes lactic acid threshold determination, training pressure evaluation, and peak training effect analysis to optimize your workouts.
• Outdoor Sports Modes: Supports six major outdoor sports: cross-country running, rock climbing, hiking, mountaineering, outdoor cycling, and skiing.
• Route Navigation: Download race routes or customized routes to the watch. It provides trajectory guidance through offline maps and event routes, with early warning of bad weather.

3.4 GPS and Navigation

Equipped with independent dual-frequency five-star GNSS positioning, the watch provides accurate location information. It supports offline maps, allowing you to navigate complex terrain without a network signal. Offline maps need to be downloaded separately from Xiaomi's official map download channel: https://watch.iot.mi.com/libai/map-download.html.

3.5 Communication Features

• Independent eSIM: Allows you to answer calls, listen to podcasts, and communicate independently from your mobile phone, making training easier and safer. Supports independent numbers and No.1 dual terminal.
• WeChat Watch Version: Raise your hand to reply and communicate on your wrist. This feature requires Android 8.0+ and updates to watch firmware, mobile phone WeChat APP, and Xiaomi Sports Health APP. Note: The new WeChat version features are currently not supported by iOS phones.

3.6 Smart Features

• NFC Car Keys: Supports unlocking and starting Xiaomi SU7 and Lotus cars.
• Focus Information Reminder: Provides active reminders for key progress and displays takeaway information directly on your wrist.
• Multiple Dials: Customize your watch face with a variety of classic, simple, sports, and multi-functional dials.

4. Maintenance

To ensure the longevity and optimal performance of your Xiaomi Watch S4 Sport, follow these maintenance guidelines:

• Cleaning: Regularly wipe the watch body and strap with a soft, dry cloth. For stubborn dirt, use a slightly damp cloth and mild soap, then dry thoroughly.
• Strap Care: Different strap materials require specific care. Fluororubber and liquid silicone straps are durable and easy to clean. The Titanium Milanese strap should be cleaned gently to maintain its finish.
• Water Resistance: The watch has a 5ATM waterproof rating, suitable for swimming and diving up to 40 meters. However, the Titanium Milanese strap and woven outdoor strap are not certified by EN13319 and are not suitable for diving. Always ensure the watch is dry before charging.
• Charging: Use only the provided contact magnetic suction charging cable. Avoid exposing the charging contacts to water or corrosive liquids.
• Storage: Store the watch in a cool, dry place away from direct sunlight and extreme temperatures.

5. Troubleshooting

If you encounter issues with your Xiaomi Watch S4 Sport, please refer to the following common solutions:

• Watch Not Powering On: Ensure the watch is fully charged. Connect it to the charger for at least 30 minutes.
• Pairing Issues: Make sure Bluetooth is enabled on your smartphone and the watch is within range. Restart both the watch and your phone. Verify that the 'Xiaomi Sports Health App' is updated to the latest version.
• App Connectivity Problems: For China version watches, confirm that your app's region setting is set to "China Mainland". If you have other Mi Home devices, ensure they are not conflicting with region settings.
• eSIM Not Working: Check with your local mobile operator for eSIM compatibility and activation procedures in your region. eSIM functionality may vary by country and carrier.
• WeChat Features Not Available (iOS): The new WeChat watch version features are currently not supported on iOS phones. Ensure your Android phone, watch firmware, and WeChat app are all updated for these features.
• Inaccurate Health Data: Ensure the watch is worn snugly on your wrist, but not too tight. Clean the sensor on the back of the watch regularly.
• GPS Inaccuracy: Ensure you are in an open area with a clear view of the sky. Download offline maps if you are in an area with poor network coverage.

6. Specifications

7. User Tips

• App Region for China Version: Always ensure your Xiaomi Sports Health App region is set to "China Mainland" if you have the China version of the watch to access all features.
• eSIM Compatibility: Before relying on eSIM features, confirm compatibility with your local mobile network provider.
• Software Updates: Regularly check for and install software updates for your watch and the Xiaomi Sports Health App to ensure optimal performance and access to new features. This is especially important for features like the WeChat watch version.
• Diving Safety: While the watch is 5ATM waterproof, remember that the Titanium Milanese and woven outdoor straps are not certified for diving. Use appropriate straps for diving activities.
• Authenticity: To ensure you have an authentic product, purchase from authorized retailers or official channels.

8. Warranty and Support

For warranty information, technical support, or service inquiries, please refer to the warranty card included with your product or visit the official Xiaomi support website. Keep your proof of purchase for warranty claims.