Xiaomi Mi Band 4 Connection to Android: Full Instruction with Error Solutions

The Xiaomi Mi Band 4 fitness bracelet remains one of the most popular wearables due to its combination of functionality and affordable price. However, many users have difficulties when connecting to an Android smartphone for the first time — especially if it comes to non-standard firmware or outdated versions of software. In this article, we will discuss not only the basic pairing procedure, but also the nuances of setting up notifications, synchronizing data and solving typical errors.

It’s important to understand that the Mi Band 4 requires binding to the official Mi Fitness app, without which the bracelet will only work as a pedometer with minimal functionality, while the connection process itself may vary depending on the Android version, smartphone model and regional settings, and we’ll look at a universal algorithm that will suit most devices, including Xiaomi, Samsung, Realme and other brands.

If you’ve tried to plug in the bracelet and have encountered errors like “Device couldn’t be found” or “Synchronization failed,” at the end of the article you’ll find a section on how to diagnose problems and fix them, and we’ll also reveal little-known Mi Band 4 features that aren’t always obvious to beginners, such as how to adjust the weather or control music directly from the bracelet.

1. Preparation of the smartphone and bracelet for connection

Before you start syncing, make sure your smartphone and Mi Band 4 are ready to go. Here are key points that are often overlooked:

• 📱 Android Version: The bracelet officially supports Android 5.0 and higher, but Android 7.0 is recommended for stable operation+. On older versions (for example, Android 4.4), synchronization errors may occur.
• 🔋 Bracelet charge: Charge Mi Band 4 to at least 50% before connecting.Discharged device can interrupt the pairing process.
• 📶 Bluetooth and geodata: Turn on Bluetooth on your smartphone and allow Mi Fitness to access geolocation (required for some features to work correctly, such as weather).
• 🚫 Conflicting apps: Remove older versions of Mi Fit or Zepp if installed.Simultaneous operation of multiple fitness apps can block the connection.

Pay special attention to the regional settings of the smartphone. If your phone has a region of China installed, the Mi Fitness app may not work correctly (for example, not displaying the weather or steps).

1. Go to Settings → System → Language and input → Region.
2. Choose a country, for example, Russia or Germany.
3. Reboot your smartphone.

2. Installation and configuration of the Mi Fitness application

The official Mi Band 4 management app is Mi Fitness (formerly Mi Fit), which can be downloaded from Google Play or, if your smartphone doesn’t support Google services (like Huawei without GMS), from alternative sources like APKMirror.

After installation, follow the following steps:

1. Launch Mi Fitness and sign up (or sign in) through your Xiaomi account. If you don't have an account, create it directly in the app.
2. Click Add Device and select the Bracelet → Mi Smart Band 4.
3. Allow all permissions requested: Bluetooth, Notifications, Geolocation, Warehouse (for backups).

If the app doesn’t find the bracelet, try:

• 🔄 Reboot Mi Band 4 (press the touch button for 10 seconds until vibrations appear).
• 📴 Disable/enable Bluetooth on your smartphone.
• 🔍 Make sure the bracelet is not connected to another device (e.g., a tablet).

3. Step-by-step instruction for pairing the bracelet

When the app and the bracelet are ready, we'll pair. Follow the instructions carefully, skipping the steps can lead to errors.

1. Activation of the bracelet: tap the touch button of Mi Band 4 to wake up the screen. QR-code or inscription Pair (Pair).
2. Device search: In the Mi Fitness app, click Connect and wait for the smartphone to find the bracelet. It should appear on the list as Mi Smart Band 4 (XXXX), where XXXX is a unique identifier.
3. Code Confirmation: A 4-digit code will appear on the bracelet screen and in the app, make sure the codes match, and confirm the pairing on the smartphone.
4. Update: Once connected, the app may suggest updating the bracelet software. Don't interrupt the upgrade process, which may cause the device to "brickle" (the bracelet will stop turning on).

If at the stage of code confirmation there is an error "Can not connect", try:

• 🔌 Disable Energy Saving for Mi Fitness in Android Settings.
• 📱 Reboot your smartphone and bracelet.
• 🔄 Reset the Mi Band 4 to factory settings (press the 20 seconds button until vibrations appear).

4. Set up notifications and basic functions

Once you have successfully connected, customize the Mi Band 4 to your needs. Basic settings are available in the Device Profile section of the Mi Fitness app.

For advanced users, additional settings are available through Mi Fitness:

• 🔄 Automatic synchronization: Enable in Settings → Synchronize data so that steps and pulses are updated every 30 minutes.
• 🏃 Exercise modes: add the right sports to your Profile → Training.
• 🔒 Screen lock: activate in bracelet settings → Locking the screen to unlock the smartphone with double pressing on the bracelet.

💡

If notifications come with a delay, turn off battery optimization for Mi Fitness in the Android settings (Settings → Applications → Mi Fitness → Battery → No Limits).

5. Solving common problems

Even after a successful connection, Mi Band 4 users face common bugs, and let’s look at the most common ones and how to fix them.

⚠️ Note: If the bracelet stopped syncing after updating the firmware, try rolling it back through Mi Fitness (Device Profile section). → Update of the PO → This is only possible for 7 days after the update.

If the Mi Band 4 doesn’t respond to any pressing or doesn’t turn on:

1. Connect it to charge for 30+ minutes (even if the indicator is not on).
2. If charging doesn’t help, perform a hardware reset: connect the bracelet to charging and press the touch button for 20-30 seconds until vibration appears.
3. If the bracelet still doesn't work, check the cable and power supply (use the original 5V/1A adapter).

💡

Most of the problems with the Mi Band 4 are related to Bluetooth settings or Mi Fitness resolutions. Always start diagnosing by checking those settings.

6. Alternative ways of connecting (without Mi Fitness)

If the official Mi Fitness app doesn’t work (for example, on custom firmware or smartphones without Google Play), you can use alternative methods:

• 📱 Notify & Fitness for Mi Band: an app with advanced notification and dial settings. Requires Android 5.0+ and permissions to notify.
• 🔧 Mi Band Master: allows you to control the bracelet without a Xiaomi account, but some features (such as weather) may not work.
• 💻 Tools & Mi Band: Suitable for firmware custom dials and vibration adjustment.

To connect via Notify & Fitness:

1. Install the app from Google Play or APK.
2. Open the Settings → Connection → Mi Band 4
3. Follow the instructions on the screen (similar to the official pairing).
4. After connecting, configure notifications in the Notifications → Applications section.

⚠️ Warning: Alternative apps may not support all of the Mi Band 4’s features, such as sleep monitoring or heart rate measurement, and they often require additional permissions, which may affect data security.

7. Optimization of the bracelet for advanced users

If you want to make the most of Mi Band 4, use these tips:

• 🎨 Custom dials: Download dials from sites like amazfitwatchfaces.com and install them via Mi Fitness or Notify & Fitness.
• 📊 Exporting data: Use apps like Google Fit or Apple Health (via Mi Fitness) to analyze statistics in other services.
• 🔋 Extending the time: Turn off the lifting of your hand to activate. Reduce the brightness of the screen to 2-3 Turn off constant pulse monitoring (only during exercise).

To install a custom dial through Mi Fitness:

1. Download the dial file (.bin) to your smartphone.
2. In the app, go to Profile → My Devices → Mi Band 4 → Dials.
3. Click Add the dial and select the downloaded file.
4. Confirm the bracelet.

FAQ: Frequently Asked Questions