Connecting Xiaomi Mi Band 4 to Android phone: a full guide with pictures and tips

Why Mi Band 4 is not connected to Android and what to do about it

The Xiaomi Mi Band 4 fitness bracelet remains one of the most popular activity-tracking gadgets, despite the release of new models, with its main advantages being affordable price, long battery life and wide functionality from sleep monitoring to smartphone notifications. However, many users face problems when connecting to an Android phone for the first time, most often due to an outdated version of the application, incompatibility of the bracelet firmware or basic errors in Bluetooth settings.

In this article, you will find step-by-step instructions for syncing the Mi Band 4 with an Android device, including preparing the phone, installing the necessary software and solving typical problems. We will also discuss which hidden bracelet settings are only available through third-party applications (for example, Mi Band Master or Notify & Fitness), and how to activate them without the risk of bricking the device. If you have already tried to connect, but see an error like “failed to find the device” or “Connection interrupted” – here you will find specific ways to fix them.

Prepare your phone before connecting Mi Band 4

Before you start syncing, make sure your smartphone meets the minimum requirements. Xiaomi Mi Band 4 officially supports Android 5.0 and higher, but for stable operation, a version at least Android 6.0 is recommended.

• 📱 Free space in the phone’s memory – the Mi Fit (or Zepp Life) app takes up about 100MB, plus you’ll need space for a data cache from the bracelet.
• 🔄 System Updates – Some connection errors are fixed in the latest versions of Android (especially relevant for devices on Android devices). MIUI).
• 🔋 Battery charge – the phone should be at least 30% charge, and the bracelet should be fully charged (charging indicator burns green).
• 📶 Internet connection – to download the application and synchronize data will require stable Wi-Fi or mobile Internet.

Pay special attention to permissions: After installing Mi Fit or Zepp Life, the app will request access to:

• 📍 Geolocation – for accurate jogging tracking.
• 📱 Contacts and messages – to show notifications on the bracelet.
• 📁 Storage - for exporting training data.
• 🔊 Microphone – if you use a voice assistant (in some regions).

⚠️ Note: If you use custom ROM (For example, LineageOS or modified firmware, there may be problems with Bluetooth Low Energy (BLE). In this case, before connecting, disable all Xposed or Magisk energy-saving modules.

Mi Fit vs Zepp Life – Which is Best for Android

Officially, the Xiaomi Mi Band 4 supports two apps from the manufacturer: Mi Fit and Zepp Life (formerly known as Amazfit).

For most users, Zepp Life will be preferred due to smoother workflows and enhanced settings. However, if you want to integrate with the Xiaomi ecosystem (for example, sync with Mi Home for smart home), stay on Mi Fit.

Download the applications can be by reference:

• 🔗 Mi Fit in Google Play
• 🔗 Zepp Life on Google Play

⚠️ Note: If you have previously used Mi Band 3 and you already have an old app installed, be sure to update it to the latest version before connecting a new model. Otherwise, the bracelet may be defined as Mi Band 3, and some of the features will not be available.

💡

Before installing the app, clear the Google Play Services cache in your phone settings (Settings → Apps → Google Play Services → Storage → Clear the cache).

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

Now, to the process of the connection, follow the instructions carefully to avoid the typical errors:

1. Charge the bracelet. Connect the Mi Band 4 to the charger (use the original cable!) Wait until the charge indicator (battery icon) appears on the screen. It takes about 2 hours to fully charge.
2. Download and install Mi Fit or Zepp Life from Google Play. Once installed, open the app and register (you can use Xiaomi Account, Google or Facebook).
3. Activate Bluetooth. Turn on Bluetooth on your phone and let the app use it. Go to Settings → Connections → Bluetooth and activate the function.
4. Add a device. In the app, click "Add a device" (or "+" in the upper right corner), then select "Breasure" → "Mi Smart Band 4".
5. Synchronize. Wait for the phone to find the bracelet (it can take up to 30 seconds). When the Mi Band 4 appears in the list, click on it. The bracelet will have a 4-digit code on its screen, and confirm it in the app.
6. Update the firmware. Once connected, the app will suggest updating the bracelet firmware. Don't refuse, it will fix the bugs and add new features. Make sure the bracelet is at least 50% charged!

If there is an error in the synchronization step, try the following:

• 🔄 Reboot your phone and bracelet (to reboot the Mi Band 4, hold the button on the charger for 10 seconds).
• 📱 Remove the bracelet from the list of paired Bluetooth devices in your phone settings and reconnect.
• 🔧 In Bluetooth phone settings, turn on Visible for All Devices (sometimes helps with detection problems).

Charge the Mi Band 4 before 100%|Install the latest version of Mi Fit/Zepp Life|Enable Bluetooth and geolocation|Remove old devices from the Bluetooth list|Update the bracelet firmware after connecting-->

Configure notifications and basic functions

Once you've successfully connected, you'll set up key bracelet functions. Open the app (Mi Fit or Zepp Life) and go to the section with your device.

Notifications:

• 📩 To enable notifications, go to the Device Profile → Notifications and activate the switch.
• 🔕 Here you can choose from which applications to show notifications (for example, WhatsApp, Telegram, Gmail).
• ⏰ Set the silent mode time so that the bracelet does not vibrate at night.

Screen and dials:

• 🎨 In the section "Dials" you can download new themes (in Zepp Life there are more of them than in Mi Fit).
• 🔍 To change the order of the screens, swipe left/right on the bracelet and click "Change order" in the application.
• 🌓 Activate automatic screen lighting when lifting your hand in Settings → Display.

Health monitoring:

• ❤️ Turn on continuous heart rate monitoring (discharges the battery faster, but is useful for exercise).
• 😴 Activate sleep tracking and set the alarm with Smart Lift (Wake up in the optimal sleep phase).
• 🏃 Select priority sports in the Training section for quick access.

Mi Band 4 is not connected to the phone

If the bracelet is not detected or the connection is constantly broken, use this troubleshooting instruction:

If nothing helps, try alternative apps:

• 📱 Notify & Fitness for Mi Band – Supports advanced features (e.g., response to messages from a bracelet).
• 🔧 Mi Band Master – allows you to adjust hidden parameters (vibration, brightness of the screen).
• 🌐 Tools & Mi Band – for firmware custom dials.

⚠️ Note: When using third-party apps, turn off automatic synchronization in Mi Fit/Zepp Life to avoid conflict, also be careful with custom dials, which can lead to loss of warranty.

💡

If the Mi Band 4 doesn’t connect to the phone after all the manipulations, try connecting it to another smartphone. If the problem persists, the bracelet itself is defective (a defect in the Bluetooth module is possible).

Hidden features of Mi Band 4: what can be enabled through unofficial apps

The official Mi Fit and Zepp Life apps limit some of the features of the Mi Band 4.

• 🎵 Music control – switching tracks and adjusting volume directly from the bracelet (via Notify & Fitness).
• 📞 Call response – the ability to reset or take a call (not working on all phones).
• 🔦 Castom notifications – customize vibrations and icons for each application separately.
• 🌈 RGB-screen highlighting – changing the color of the indicators (requires root rights on some firmware).
• 🏋️ Extended workouts – adding custom sports (such as karate or climbing).

To activate these functions:

1. Install Notify & Fitness from Google Play.
2. In the application settings, select "Mi Band 4" as your device.
3. Activate the necessary options in the "Additional Features" section.
4. Reset the bracelet (hold the button on the charge for 10 seconds).

Note that some features can drain the battery faster (such as constant heart rate monitoring or a heart rate monitor). RGB-Also, after updating the firmware through the official application, the settings may reset.

💡

To save the settings after the firmware update, make a backup copy of the data in Notify & Fitness before the update (Settings) → Backup).

FAQ: Frequent questions about connecting Mi Band 4