Introduction
Welcome to the user manual for your Xiaomi Smart Band 9 Active. This guide provides comprehensive instructions on setting up, operating, maintaining, and troubleshooting your device. Please read this manual carefully before using the product to ensure proper function and longevity.
What's in the Box
- Xiaomi Smart Band 9 Active device
- Charging Cable
- User Manual (this document)
Product Overview
The Xiaomi Smart Band 9 Active is a versatile fitness tracker designed to monitor your health and activity. It features a vibrant 1.47-inch TFT display and a lightweight, slim design for comfortable wear.

Figure 1: Front view of the Xiaomi Smart Band 9 Active, displaying time, date, battery level, and activity metrics.

Figure 2: The super-light design of the Smart Band 9 Active, shown held by hands, emphasizing its 9.99mm ultra-slim body and 16.5g weight.
Key Features:
- 1.47'' TFT display with 60Hz high refresh rate
- Lightweight design (16.5g) and slim body (9.99mm)
- Up to 18-day battery life
- 5ATM water resistance
- All-round sleep and health monitoring
- Customizable watch faces and replaceable straps
Setup
1. Charging the Device
Before first use, fully charge your Xiaomi Smart Band 9 Active. Connect the magnetic charging cable to the charging contacts on the back of the band and plug the USB end into a power adapter (not included) or a computer's USB port.

Figure 3: The Smart Band 9 Active being charged via its magnetic cable, highlighting its extended battery life.
A full charge typically takes approximately 2 hours. The band will display a charging icon and battery percentage.
2. Installing the Mi Fitness App
To unlock the full potential of your Smart Band, you need to install the Mi Fitness app on your smartphone. The app is available for both Android and iOS devices.
- Scan the QR code provided in the quick start guide (if available) or search for "Mi Fitness" in your device's app store (Google Play Store for Android, Apple App Store for iOS).
- Download and install the app.
- Open the Mi Fitness app and follow the on-screen instructions to create or log in to your Xiaomi account.
3. Pairing the Band with Your Phone
Ensure your phone's Bluetooth is enabled.
- In the Mi Fitness app, navigate to the "Devices" or "Profile" section and select "Add device" or the "+" icon.
- The app will search for nearby devices. Select "Xiaomi Smart Band 9 Active" from the list.
- A pairing request will appear on both your phone and the band. Confirm the pairing on both devices.
- Once paired, the band will synchronize data with your phone, and you can begin customizing settings.
Operating the Device
Basic Navigation
- Swipe Up/Down: Scroll through menus and notifications.
- Swipe Left/Right: Access quick functions or widgets (e.g., heart rate, weather).
- Tap: Select an item or confirm an action.
- Press and Hold: Return to the watch face or access specific settings depending on the context.
Fitness Tracking
The band automatically tracks your daily steps, distance, and calories burned. You can view these statistics directly on the band or in the Mi Fitness app.
To start a specific workout:
- Swipe on the band to find the "Workout" or "Exercise" option.
- Tap to select your desired activity (e.g., Outdoor Run, Treadmill, Cycling).
- Tap "Go" or the play icon to begin tracking.
- During the workout, you can view real-time data. Swipe right to pause or end the workout.
Health Monitoring
The Xiaomi Smart Band 9 Active offers comprehensive health monitoring features:

Figure 4: The optical sensors on the back of the Smart Band 9 Active, used for continuous health and fitness monitoring.
- Heart Rate: Continuous heart rate monitoring can be enabled in the Mi Fitness app. You can also manually measure your heart rate from the band.
- Sleep Tracking: The band automatically tracks your sleep patterns, including deep sleep, light sleep, and REM sleep. View detailed analysis in the app.
- SpO2 (Blood Oxygen): Measure your blood oxygen saturation levels.
- Stress Monitoring: Tracks your stress levels throughout the day.
Note: This device is not a medical device and should not be used for medical diagnosis or treatment.
Notifications and Other Features
- Call & Message Notifications: Receive alerts for incoming calls, messages, and app notifications directly on your band. Enable this feature in the Mi Fitness app.
- Alarm: Set silent vibrating alarms through the app.
- Weather: View current weather conditions and forecasts.
- Music Control: Control music playback on your phone from the band.
Customization
Personalize your Smart Band 9 Active with various watch faces and replaceable straps.

Figure 5: A collection of Xiaomi Smart Band 9 Active devices showcasing various stylish strap colors and customizable watch faces.

Figure 6: The replaceable frame design of the Smart Band 9 Active, allowing for easy strap changes and style customization.
- Watch Faces: Browse and apply over 100 watch faces from the Mi Fitness app to match your style.
- Strap Replacement: The straps are designed to be easily replaceable. Gently detach the band module from the strap and insert it into a new compatible strap.
Maintenance
Cleaning the Band
Regularly clean your Smart Band and strap to prevent skin irritation and maintain performance.
- Wipe the band and strap with a soft, damp cloth.
- For stubborn dirt, use a mild soap solution, then rinse thoroughly with clean water.
- Ensure the band is completely dry before wearing it again or charging.
- Avoid using harsh chemicals or abrasive materials.
Water Resistance
The Xiaomi Smart Band 9 Active has a 5ATM water resistance rating, meaning it can withstand pressures equivalent to a depth of 50 meters.

Figure 7: The Smart Band 9 Active submerged in water, illustrating its 5ATM water resistance for swimming and showering.
- It is suitable for showering, swimming in pools, and shallow-water activities.
- It is not suitable for hot showers, saunas, diving, or high-speed water sports.
- Avoid contact with hot water, steam, or corrosive liquids, as these can compromise the water resistance.
- After contact with saltwater, rinse the band with fresh water and dry it thoroughly.
Battery Care
- To maximize battery life, avoid fully discharging the band frequently.
- Store the band in a cool, dry place when not in use for extended periods.
- Charge the band periodically if stored for a long time to prevent deep discharge.
Troubleshooting
Problem | Possible Solution |
---|---|
Band won't turn on or respond. | Ensure the band is fully charged. Connect it to the charger for at least 10 minutes. If still unresponsive, try a soft reset by pressing and holding the button (if available) or connecting/disconnecting from charger multiple times. |
Unable to pair with phone. |
|
Inaccurate health data (heart rate, steps). |
|
Notifications not appearing. |
|
Specifications
Feature | Detail |
---|---|
Model Name | Xiaomi Smart Band 9 Active |
Model Number | Xiaomi band9 Silver |
Display | 1.47-inch TFT, 60Hz refresh rate |
Dimensions | 5.65 x 7.09 x 1.46 inches (approximate product packaging dimensions) |
Weight | 16.5g (device only), 2.89 ounces (item weight including packaging) |
Water Resistance | 5ATM |
Battery Life | Up to 18 days (typical usage) |
Battery Capacity | 300 Milliamp Hours |
Connectivity | Bluetooth (Wireless Communication Standard) |
Operating System | Android Wear 1.0 (as per provided data, though typically it's a proprietary OS for bands) |
Sensors | Heart rate sensor, SpO2 sensor, accelerometer |
Manufacturer | Xiaomi |
Country of Origin | China |
Warranty and Support
Xiaomi products are covered by a limited warranty. Please refer to the warranty card included with your purchase or visit the official Xiaomi website for detailed warranty terms and conditions specific to your region.
Customer Support:
For technical support, troubleshooting assistance, or service inquiries, please contact Xiaomi customer service through their official website or the contact information provided in your product packaging.
You can also visit the Xiaomi Store on Amazon for more product information and support resources.