Xiaomi Watch S4 User Manual
Product Overview
Before using the product, please read this manual carefully and keep it for future reference.
The watch features a display screen, microphone, barometer, contact points, a balancing hole, a heart rate sensor, a rotating crown, a speaker, and a power button. It also includes a charging dock.
Download and install the Xiaomi Wear app to manage your watch better. Log in to your Xiaomi account to access more services.
Scan the QR code to download the corresponding app for your phone's system. For more details, please scan the QR code or connect the watch to the app and check the user manual.
Bezel Installation and Removal Guide
Follow these steps to install or remove the watch bezel:
- Place your index finger and thumb on the side edges of the bezel at the 6 and 12 o'clock positions, or press your palm against the bezel. Rotate counter-clockwise at an angle (approximately 20 degrees) until it no longer moves.
- Lift the bezel upwards with both fingers to remove the bezel component.
- Take the replacement bezel component and align the solid alignment points inside the bezel with the hollow alignment points at the 12 o'clock position on the watch body. Place it horizontally onto the watch body until it clicks into place.
- Place your index finger and thumb on the side edges of the bezel at the 6 and 12 o'clock positions, or press your palm against the bezel. Rotate clockwise with sufficient force until you hear a 'click', indicating the bezel is securely attached.
Diagrams illustrate two options for bezel handling, showing alignment points for removal and installation.
Specifications
Parameter | Value |
---|---|
Product | Smart Watch |
Model | M2425W1 |
Water Resistance | 5ATM |
Battery Capacity | 486 mAh |
Wireless Connectivity | Bluetooth® 5.3 |
Operating Temperature | -10 °C to 45 °C |
Input Voltage | 5 V |
Input Current | 2 A |
Operating Frequency GPS-L1/Galileo-E1/GLONASS-G1/BDS-B1I B1C/QZSS-L1 | 1559-1610 MHz |
Operating Frequency GPS-L5/Galileo-E5a/BDS-B2A/QZSS-L5 | 1164-1215 MHz |
Operating Frequency Bluetooth | 2400-2483.5 MHz |
Maximum Bluetooth Power (EIRP) | < 14 dBm |
Maximum Output Power | -20.1dBuA/m@10m |
Operating Frequency NFC | 13.56 MHz |
Compatibility: This product only supports certain Android or iOS systems. For detailed information, please visit the product page at www.mi.com.
Information on legal regulations, product certification, and compliance logos can be found in Settings > About product > Supervision.
Bluetooth® and its associated logos are registered trademarks owned by Bluetooth SIG, Inc. Other trademarks and trade names belong to their respective owners.
Regulatory Compliance Information
All products marked with the WEEE symbol are waste electrical and electronic equipment and should not be mixed with household waste. Protect human health and the environment by handing over your waste equipment to a designated collection point for recycling. Proper disposal and recycling help prevent negative impacts on the environment and human health.
EU – Declaration of Conformity
Xiaomi Communications Co., Ltd. declares that the radio equipment type M2425W1 complies with Directive 2014/53/EU and Regulation (EU) 2023/1542. The full text of the EU declaration of conformity is available at: http://www.mi.com/global/service/support/declaration.html
This device complies with radio frequency exposure limits for uncontrolled environments. Specific Absorption Rate (SAR) indicates how the body absorbs electromagnetic energy. The SAR limit is 2.0 W/kg for head use and 4.0 W/kg for wrist use, averaged over 10 grams of tissue.
During testing, the transmitter was set to its highest power. When positioning the device near the mouth, maintain a separation of at least 5 mm.
Safety Precautions
General Wear and Use:
- For daily wear, comfortably tighten the watch strap around your wrist approximately one finger-width from your wrist bone. Adjust the strap so the heart rate sensor collects data normally.
- Keep your wrist still when measuring heart rate.
- The smartwatch has 5ATM water resistance (equivalent to 50 meters). It can be worn for swimming in pools, at the beach, or in shallow water. Do not use in hot showers, saunas, or for diving. Avoid direct exposure to strong currents during water sports. Rinse with fresh water after use in salt water. Dry leather, metal, or fabric straps after contact with water. Water resistance may decrease over time. Refer to official Xiaomi instructions for details.
- The touchscreen is not designed for underwater use. Wipe dry with a soft cloth if the watch contacts water.
- Do not overtighten the strap during normal wear. Keep the contact area dry and clean the strap regularly with water. If skin irritation occurs, stop use and seek medical attention.
Charging and Battery Safety:
- Ensure the charging environment is dry. Do not touch with wet hands or expose to liquids.
- If not using the watch for an extended period, fully charge it, turn it off, and store it in a cool, dry place. Recharge at least once every 3 months.
- Operating temperature is -10 °C to 45 °C. Performance may be affected by extreme temperatures.
- If the display is broken, do not touch it or attempt removal. Stop use and contact authorized service.
- Use only the included charging dock and certified power adapters.
- Do not disassemble, deform, incinerate, or strike the watch. Stop using immediately if swelling or leakage occurs.
- The integrated battery should not be disassembled or replaced by the user. Only authorized service providers should perform battery replacement. Incorrect battery types can be hazardous.
- Do not dispose of batteries in fire, hot ovens, or subject them to mechanical damage, as this may cause explosions.
- Do not dispose of batteries in household waste or landfills. Comply with local laws and regulations for disposal.
- Do not leave the battery in extremely high-temperature environments, which could lead to explosion or leakage.
- Do not expose the battery to extremely low air pressure, which could lead to explosion or leakage.
- The watch and accessories may contain small parts. Keep out of reach of children to prevent suffocation or injury.
- Keep the indicator out of the reach of children's and animals' eyes during use.
- This watch is not a medical device. Data and information provided are not for diagnosis, treatment, or disease prevention.
- To prevent hearing damage, do not listen at high volumes for extended periods.
- Product information is also on the back cover of the watch.
Warranty Notice
Xiaomi offers specific consumer warranties that supplement statutory warranties. Warranty validity and terms are subject to local laws. For more information, visit https://www.mi.com/en/service/warranty/. After-sales services are limited to the country or region of original purchase.
Xiaomi may repair, replace, or refund the product at its discretion, within legal limits. The warranty does not cover normal wear and tear, misuse, or damage due to negligence. Contact authorized service providers, distributors, or retailers for support. Current warranties do not apply to Hong Kong and Taiwan.
Warranties do not cover products not properly imported, manufactured, or purchased from authorized dealers. Contact your seller for warranty claims on such products.
Disclaimer: Illustrations are schematic and may differ slightly from the actual product. This manual is published by Xiaomi or a Xiaomi ecosystem company. Typographical errors and inaccuracies are subject to change without notice.
Manufacturer: Xiaomi Communications Co., Ltd. Address: #019, 9th Floor, Building 6, 33 Xi'erqi Middle Road, Haidian District, Beijing, China, 100085
For more information, visit www.mi.com
Importer: Beryko s.r.o. Pod Vinicemi 931/2, 301 00 Plzeň www.beryko.cz
Version V1.0
[Recycling symbol PAP 22]