How to connect Xiaomi Mi Smart Band 4 to your phone: full instructions with photo

Xiaomi Mi Smart Band 4 remains one of the most popular fitness bracelets due to its balance of price and functionality. Even years after its release, the device is in demand due to accurate monitoring of activity, water resistance and long battery life. However, many users have difficulties with the first connection – especially if it is a question of changing a smartphone or reinstalling an application.

In this article, you will find step-by-step instructions on how to pair the Mi Band 4 with Android and iOS phones, and how to solve typical problems, from Bluetooth errors to sync failures. We will analyze not only the basic settings, but also hidden features that the manufacturer does not always advertise, such as how to turn on the display of notifications from instant messengers or set the alarm clock directly from the bracelet.

If you’ve just unpacked your device or encountered a “failed to connect” error, this guide will save you time.All the steps are illustrated with screenshots and are accompanied by practical tips from Xiaomi’s power users.

1. Preparation for connection: what will be needed

Before you start pairing, make sure you have everything you need, and without these components, the process can fail or take much longer.

• 📱 Smartphone on Android 5.0+ or iOS 10.0+ (Mi Band 4 requires a minimum version of the OS).
• 🔋 Xiaomi Mi Smart Band 4 with a battery charge of at least 20% (at low charge, the bracelet can turn off during settings).
• 📲 The official Mi Fitness app (formerly Mi Fit) – download it from Google Play or the App Store.
• 🔄 Bluetooth enabled on your smartphone (no Visible for All mode required).

Pay special attention to the version of the application. If you have an outdated version of Mi Fit (before rebranding it to Mi Fitness), remove it and install the current one. Older versions may not support Mi Band 4 or work with errors.

⚠️ Note: If you have previously used a Mi Band 3 or other bracelet, untie it in the app before connecting a new device.

Useful Lifehack: If you have a Xiaomi or Redmi smartphone, check for the Mi Fitness app preinstalled in the Xiaomi folder.

2. Installation and configuration of the Mi Fitness application

The Mi Fitness app is the central hub for managing all Xiaomi devices, including the Mi Band 4.It takes no more than 5 minutes to install, but there are nuances that affect the stability of the bracelet.

Download the application on the links above and follow the instructions:

1. Open Mi Fitness and select the language (we recommend "Russian" for convenience).
2. Click Sign up or Sign in if you already have a Xiaomi account (you can use Google, Facebook or phone number).
3. Confirm access to geodata (necessary for the pedometer to work correctly) and notifications (so that the bracelet vibrates when calling and texting).
4. In the main menu, tap the + icon (or Add Device) and select Bracelet → Mi Smart Band 4.

Important: If the app requests access to contacts or SMS, only allow it if you want to see the names of the callers on the bracelet screen. Otherwise, you can refuse - the functionality will not suffer.

After adding the device, the application will offer to update the firmware of the bracelet. Do not refuse to update - this will fix bugs and add new features (for example, support for additional dials).

⚠️ Warning: If after registering with Mi Fitness you see an empty screen or a “No connected devices” error, restart the application and check your Internet connection. Sometimes Xiaomi servers are temporarily unavailable.

3. Step-by-step connection of Mi Band 4 to the phone

Now, to the most important thing, pairing the bracelet with a smartphone, the process is the same for Android and iOS, but there are differences in the notification settings (which we will discuss later).

Follow the instructions:

1. Charge the Mi Band 4 to 100% (even if the indicator shows partial charge). Connect the bracelet to the charger with a magnetic socket, and the green indicator should light up.
2. Turn on Bluetooth and open Mi Fitness.
3. In the app, click Add Device → Bracelet → Mi Smart Band 4.
4. It'll appear on screen. QR-Bring the bracelet to the code (5-10 cm) - the scan will be automatic. If the bracelet camera does not work, click on the Mi Band 4 screen to wake it up.
5. After a successful scan, click “Connect” in the app and confirm the pairing on the phone (a Bluetooth system window may appear).
6. Wait until the synchronization is complete (usually takes 1-2 minutes) and the bracelet vibrates when the process is complete.

If the scan is QR-code is down:

• 🔦 Check the brightness of the phone screen – at low brightness, the bracelet may not recognize the code.
• 📱 Restart the Mi Fitness app and try again.
• 🔄 Reset the bracelet: Press the touch button for 10 seconds until the Mi logo appears.

Critical information: If the bracelet was previously linked to another account, it should be reset. To do this, press the button on Mi Band 4 before the menu appears, select Reset (the icon with the wrench) and confirm the action.

4. Notification setting and data synchronization

Once you connect the Mi Band 4, you need to configure it to show notifications for calls, messages and other events.

How to enable notifications:

1. In Mi Fitness, go to Profile → “Mi Smart Band 4” → “Notifications”.
2. Activate the “Call Notifications” and “Notifications from Applications” slider.
3. Select the apps you want to see on your bracelet (e.g. WhatsApp, Telegram, Viber).
4. Set up the display style: 📞 For calls: turn on the option to raise your hand to answer (the bracelet will automatically turn off the call when you gesture). 💬 For messages: choose whether to show text message or only the app icon.

Important for iPhone: On iOS, notifications work through the notification center. To get them to the bracelet, in the iPhone settings, go to Notifications → Mi Fitness and turn on the Allow Notifications option.

To synchronize data (steps, pulse, sleep), just open the Mi Fitness app, and the data exchange happens automatically.

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If notifications come with a delay, in the Mi Fitness settings, enable the option “Autosync” and add the application to the battery optimization exceptions (on Android).

5. Additional settings and hidden functions

Mi Band 4 supports features that many users don’t know about, and here are the most useful ones:

• 🎨 Change the dial: In the Mi Fitness app, go to Profile → Dials" and select one of the preset designs. You can also download custom dials through third-party applications (for example, Amazfit Watch Faces).
• 🏃 Training mode: The bracelet automatically recognizes running, walking and cycling, but you can manually start tracking other activities (swimming, ellipsoid, etc.) through the menu on the bracelet.
• 🔋 Battery savings: Turn off the “Raise your hand for backlight” in the settings if you want to extend your running time to 20+ days.
• 🔒 Screen lock: Turn on the “Block Bracelet” option in Mi Fitness to avoid accidental taps while sleeping or exercising.

Another useful feature is music control, so if you're listening to music on your phone, you can switch tracks directly from the bracelet (double tap on the screen).

How to turn on the weather display:

1. In Mi Fitness, go to Profile → Weather.
2. Turn on the slider "Show the weather."
3. Select a city (Geolocation is used by default).
4. On the bracelet, swipe up the screen to see the forecast.

⚠️ Warning: If the bracelet starts to discharge quickly after the firmware update, reset it to factory settings. To do this, select Profile in Mi Fitness → Untie the device, then press the button on the bracelet before the reset menu appears.

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Regularly update the firmware Mi Band 4 through Mi Fitness – this fixes bugs and adds new features (for example, support for new dials).

6. Solving common problems

Even after connecting correctly, users encounter errors, and here are the most common ones and how to fix them:

If the bracelet does not respond to touch:

• Check if the moisture has fallen under the screen (quiet the device).
• Reset the bracelet (press the button for 10 seconds).
• Update the firmware through Mi Fitness.

If the bracelet has stopped working after the update:

1. Untie it in the app (Profile → Untie the device).
2. Reset the bracelet settings (click the button before the reset menu appears).
3. Reconnect as described in Section 3.

7 How to extend the life of Mi Band 4

Xiaomi Mi Smart Band 4 is designed for 2-3 years of active use, but with proper care will last longer.

• 🚿 Waterproof: The bracelet can withstand immersion to a depth of 50 meters, but it is not recommended to swim with it in chlorinated or salt water - this spoils the strap and sensors.
• 🔋 Charging: Use only the original cable. Do not leave the bracelet on charging for more than 2 hours - this reduces the battery life.
• 🧼 Clean: Once a week, wipe the bracelet and strap with a wet wipe. To remove sweat and dirt from the sensors, use a cotton swab dipped in alcohol.
• 🌡️ Temperature: Avoid overheating (for example, don’t leave your bracelet in the sun in your car) and hypothermia (below). -10°C).

How to replace the strap:

The Mi Band 4 strap is mounted on a standard 20mm fastener to remove it.

1. Turn over the bracelet and find a small button on the back of the strap.
2. Press it with a screwdriver or nail and pull the strap to the side.
3. Install a new strap by snapping it to the characteristic clicks.

Battery tip: If the bracelet begins to discharge quickly, turn off unnecessary functions:

• 📱 Autosynchronization (manual synchronization 1-2 times a day is enough).
• 🌙 Continuous sleep monitoring (only at night).
• 💡 Lighting when raising your hand (use the button to turn on the screen).

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Regular cleaning of sensors (especially heart rate sensors) improves the accuracy of measurements and prevents skin irritation.

FAQ: Frequent questions about Mi Band 4