The fitness bracelet Xiaomi Mi Band 4 remains one of the most popular gadgets for monitoring activity, despite the release of new models. Its main advantages are its affordable price, long battery life and wide functionality: from step counting to notifications from a smartphone. But before the first use, the bracelet needs connect correctly to the phone on Android, otherwise some of the functions will be unavailable.

Many users encounter difficulties at the synchronization stage: application Mi Fit (or its alternative Zepp Life) does not see the bracelet, Bluetooth errors occur, or the process is stuck at the firmware update stage. In this article - step-by-step guide taking into account all the nuances, including preparing the phone, choosing an application and solving typical problems. And also - a compatibility table, a checklist for quick setup and answers to frequently asked questions.

If you just unpacked Mi Band 4 or reset it to factory settings, do not rush to try to connect right away. First, check a few key points on which the success of synchronization depends.

📊 Which version of Mi Band are you using?
Mi Band 4
Mi Band 5/6/7
Mi Band 8 or later
Another fitness bracelet

1. Preparing the phone and bracelet before connecting

Before you start synchronizing, make sure that your smartphone meets the minimum requirements. Xiaomi Mi Band 4 officially supports Android 5.0 and higher, but for stable operation it is better to use a version no lower than Android 7.0. Also check that your phone is turned on Bluetooth 4.2 or newer - without this, the bracelet simply will not be able to connect.

Tip: if you have an old smartphone (for example, on Android 6.0), update the firmware to the latest version through the settings. Otherwise, synchronization errors may occur or some functions may be missing (for example, quick responses to notifications).

Now prepare the bracelet itself:

  1. Remove Mi Band 4 from the package and remove the protective film from the screen (if any).
  2. Charge the gadget up to 100% —to do this, connect it to the charger (use the original cable or a certified analogue). The bracelet should work on a full charge for at least 5-7 days with standard use.
  3. Press the touch button under the screen to wake up the bracelet. If the screen does not respond, the gadget may be low - wait 10-15 minutes after connecting to the charger.

Important: if the bracelet has already been used (for example, you bought it used), reset it to factory settings. To do this, go to the bracelet menu: Settings → More → Reset. After the reset, all data will be deleted and the gadget will be ready for new synchronization.

Bracelet charge (minimum 50%)|Bluetooth is turned on on the phone|Mi Fit/Zepp Life application is installed|The bracelet is unlocked (press the button under screen)-->

2. Which application to use: Mi Fit or Zepp Life?

Official Xiaomi Mi Band 4 supports two applications from the manufacturer: Mi Fit and Zepp Life (previously known as Amazfit). Both are available in Google Play, but they have key differences:

Mi Fit is a classic application with a minimalistic interface. Suitable for basic functionality: activity monitoring, notifications, alarm management. However, in the latest versions, some functions (for example, customizing watch faces) may be limited.

Zepp Life - a more modern solution with advanced capabilities for analyzing sleep, training and health. There are more dials available here, detailed statistics on heart rate and blood oxygen levels (SpO₂). Minus - the application may seem overloaded with unnecessary functions.

Which option to choose?

  • 📱 For simplicity — Mi Fit (easier to set up, weighs less).
  • 📊 For detailed information analytics — Zepp Life (more graphs and recommendations).
  • 🔄 If you have already used Xiaomi gadgets - check which application you have installed and use it (data is synchronized between devices).

Note: if you have previously used a bracelet with Mi Fit, and now want to switch to Zepp Life, the data will not be transferred automatically. You will have to set up your profile and goals again.

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After installing the application, open it and register (or log in through your account Xiaomi, Google, Facebook). Without authorization, synchronization with the bracelet will be impossible.

3. Step-by-step guide: how to connect Mi Band 4 to Android

Now let's move on to the connection process itself. Follow the instructions carefully to avoid mistakes:

Step 1. Turn on Bluetooth on your phone

Open the quick settings panel (swipe down from the top edge of the screen) and make sure the icon Bluetooth is active. If not, tap on it. Also check that the mode Battery saving disabled (it can block background running of applications).

Step 2. Launch the application and add a device

  1. Open Mi Fit or Zepp Life.
  2. Click on the profile icon (usually in the upper right corner) → Add device.
  3. In the list, select Mi Smart Band 4 (or Mi Band 4).

Step 3. Synchronization with the bracelet

  • The application will offer to enable Bluetooth and Geolocation (geolocation) - agree.
  • A QR code will appear on the phone screen. Place the bracelet near the phone camera so that the code falls into the scanning field (alternatively, you can enter the PIN code manually if the QR is not available). is read).
  • Confirm the connection on the bracelet - press the touch button under the screen.

Step 4. Firmware update (if necessary)

After connection, the application may offer to update the bracelet firmware. Do not interrupt the process - this may lead to malfunctions The update takes 2-5 minutes, the bracelet will reboot automatically.

If an error occurs at any stage, go to the section ["What to do if the Mi Band 4 does not connect"](#troubleshooting) (link below).

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For successful synchronization of the bracelet. should be no more than 10 meters from the phone. If the connection is interrupted, try bringing the gadgets closer to each other.

4. Setting up basic functions after connection

After successful synchronization, you can configure the bracelet to suit your needs:

Notifications

To receive notifications about calls and messages:

  1. In the application, go to Profile → Mi Smart Band 4 → Notifications.
  2. Turn on the switch Notifications.
  3. Select applications from which you want to see notifications on the bracelet (for example, WhatsApp, Telegram, Gmail).

Watch faces

Mi Band 4 supports interchangeable watch faces. To change the design:

  1. In the application, open Profile → Mi Smart Band 4 → Display.
  2. Select a section Dials and view the available options.
  3. Tap on the dial you like and press Synchronize.

Sleep and activity monitoring

By default, the bracelet automatically tracks sleep and steps, but you can set up goals and reminders:

  • 🛌 Sleep: set your bedtime and alarm in the section Sleep.
  • 🚶 Step goals: set the daily norm (for example, 8,000 steps) in Activity.
  • ⏱️ Sedentary reminder: turn on the option so that the bracelet vibrates if you sit still for a long time.

Tip: if you play sports, add workouts manually through the app. The bracelet can recognize running, walking, cycling and swimming (with water resistance up to 50 meters).

How to reset step data?

If the step counter is lost or you want to start counting again, go to the application → Activity → Steps and tap on the calendar icon. Here you can reset statistics for the current day.

5. Compatibility table for Mi Band 4 with Android versions

Not all smartphones work equally well with Mi Band 4. Below is a compatibility table taking into account versions Android and connection features:

Android version Compatibility Features Recommendations
Android 10–14 ✅ Full Stable operation, all functions are available Update the application Mi Fit/Zepp Life to the latest version
Android 7–9 ✅ Partial Can some watch faces and notifications are missing Check your energy saving settings - add the application to exceptions
Android 5–6 ⚠️ Limited Possible synchronization errors, no support for new firmware Update your phone firmware or use alternative applications (for example Notify & Fitness)
Android 4.4 and below ❌ Not supported Applications Mi Fit/Zepp Life are not installed Use another phone to set up or update the OS

Note: on some custom firmware (for example LineageOS or MIUI Globalthere may be problems with Bluetooth. In this case, try disabling the function Bluetooth A2DP in the developer settings or reset the network settings on the phone.

6. Typical problems and their solutions

Even with correct settings, sometimes failures occur. Let's look at the most common errors and ways to fix them:

Problem 1: The phone does not see the bracelet

  • 🔄 Reboot Mi Band 4 (hold the touch button on 10 seconds).
  • 📱 Restart Bluetooth on the phone (turn it off and on again).
  • 🔌 Make sure that the bracelet is charged (if the discharge is lower 10% it may not appear in the list of devices).
  • 🚫 Check if the bracelet is connected to another phone (in this case, reset the bracelet).

Problem 2: The application freezes at the connection stage

⚠️ Attention: If the synchronization process is stalled at the "Connecting..." stage, do not force close the application. Wait 2-3 minutes - sometimes Xiaomi servers process the request longer than usual.

If the freeze continues:

  1. Remove the bracelet from the list of devices in the application and try to connect again.
  2. Clear the cache applications Mi Fit/Zepp Life in the phone settings (Settings → Applications → [application name] → Memory → Clear cache).
  3. Check your Internet connection - network access is required for the first synchronization.

Problem 3: Notifications do not arrive

  • 🔔 Enable notifications for the application Mi Fit in the phone settings (Settings → Notifications → Mi Fit).
  • 🔕 Check if it’s worth it Is the bracelet in “do not disturb” mode (on the bracelet: Settings → Do not disturb).
  • 📵 Make sure that the application from which you want to receive notifications (for example, Viber) has permission to send notifications.

Problem 4: The bracelet discharges quickly

⚠️ Attention: if Mi Band 4 discharges in 1-2 days, most likely energy-intensive functions are enabled: a constant heart rate monitor, notifications from dozens of applications or automatic sleep tracking. Disable unnecessary options in the bracelet settings.

7. Alternative connection methods

If the standard synchronization method did not work, try alternative options:

Method 1: Connection through third-party applications

If official applications Mi Fit or Zepp Life do not work, use alternatives:

  • 🔗 Notify & Fitness for Mi Band —supports most features, including notifications and watch faces.
  • 🔗 Mi Band Master —advanced settings for advanced users (for example, vibration customization).

Please note: third-party applications may require root access or additional permissions.

Method 2: Manual addition devices via Bluetooth

If the bracelet is detected by the phone, but does not connect through the app:

  1. Open Settings → Bluetooth on the phone.
  2. Find in the list Mi Band 4 (usually displayed as MI Band 4_XXXX).
  3. Tap on the device and confirm pairing.
  4. Run Mi Fit and try to synchronize the data manually.

Method 3: Using another phone

If your smartphone is outdated or has incompatible firmware, try connecting the bracelet through another phone (for example, from a friend or relative). After the first setup Mi Band 4 you can synchronize with your device again.

8. Frequently asked questions (FAQ)

Is it possible to connect Mi Band 4 to several? phones at the same time?

No, the bracelet is synchronized with only one device. To connect it to another phone, first remove it from the application on the first smartphone, then perform a reset on the bracelet (Settings → More → Reset).

How to update the firmware on Mi Band 4 if the application does not offer update?

Check the firmware version in Profile → Mi Smart Band 4 → About the device. If the update is available but not installed:

  1. Reconnect the bracelet to the phone.
  2. Clear the application cache Mi Fit.
  3. Try updating through another application (for example, Zepp Life).

If all else fails, wait for the automatic update (may take several days).

Why does the bracelet vibrate for no reason?

Most likely, one of the functions is triggered:

  • 🔔 Sedentary reminder (if you sit for a long time).
  • 💤 Alarm clock (check the settings in application).
  • 📱 Notification (perhaps a message has arrived that you did not notice).
  • ❤️ High heart rate warning (if heart rate monitoring is turned on).

To turn off vibration, go to Bracelet settings → Vibration.

Can I use Mi Band 4 without a phone?

Yes, the bracelet works autonomously: it counts steps, tracks sleep and shows the time. However, without connecting to your phone, you will not be able to:

  • Receive notifications.
  • Synchronize data to the application.
  • Update the firmware.

For full use, synchronize the bracelet with your phone at least once every 2-3 days.

How to reset Mi Band 4 if it does not respond?

If the bracelet is frozen and does not respond to presses:

  1. Connect it to the charger for 10-15 minutes (sometimes the battery drain blocks operation).
  2. Press the touch button under the screen on 20-30 secondsuntil the bracelet vibrates and reboots.
  3. If this does not help, reset through the app: Profile → Mi Smart Band 4 → Unlink device.

After resetting, all data from the bracelet will be deleted!