How to connect the Xiaomi Band 4 bracelet to a Samsung phone

The compatibility of wearable electronics from Chinese manufacturer Xiaomi with the Android operating system installed on Samsung devices usually does not cause problems, however, the initial setup process requires careful attention.The Mi Band 4 fitness bracelet became a real hit thanks to its performance. AMOLED-display and autonomy, but for its full operation it is necessary to correctly perform pairing through a proprietary application. The owner of a smartphone of a Korean brand may face the nuances of energy saving services, which can interrupt the background work of the activity tracker.

Before starting the procedure, it is important to make sure that the phone is enabled Bluetooth module and active geolocation, as modern versions of Android require access to the location to search. BLE-The synchronization process takes only a few minutes, but requires software pre-production. If you've used other manufacturers' wristbands before, the system may try to use old profiles, so a clean installation is preferable.

In this article, we will discuss in detail the algorithm of actions that will avoid common connection errors, you will learn how to properly configure notifications to avoid missing an important call or message, and how to optimize the operation of the phone-bracelet bundle for maximum autonomy, the correct setting at the start will eliminate the need for re-pairing in the future.

Preparation stage and installation of the Mi Fit application

The foundation for the stable operation of the Samsung Galaxy and Mi Band 4 bundle is the installation of the current version of the software for managing the device. The main tool is the Mi Fit application (or its newer version Zepp Life), which acts as an intermediary between the smartphone operating system and the bracelet firmware.

Once you download and install the application, you need to create an account or log in if you already have one. For users from CIS countries, it is often recommended to choose the region “Russia” or “China”, as this depends on the list of available features and server load. During the registration process, the system will request access to contacts, call history and geo-position - these permissions are required for the correct display of notifications on the wrist.

You should not ignore requests to update the app itself immediately after installation. Developers regularly release patches that improve connection stability with devices of different generations. Also at this stage, it is recommended to check for updates to the operating system of your Samsung smartphone, as older versions of Android may have vulnerabilities in Bluetooth protocols.

📊 What version of Android is installed on your Samsung?
Android 9 Pie
Android 10
Android 11
Android 12 and higher

⚠️ Note: When installing the Mi Fit app, Android may issue a warning that the app is requesting access to a lot of data.This is a regular situation for health trackers, and all permissions must be confirmed for functions to work, especially access to background geolocation.

The process of pairing devices via Bluetooth

Once you've signed up successfully, the key is to find and link the device. In the Mi Fit interface's main menu, you need to go to the Profile tab and select the Add Device option. In the list of available gadgets, you should find the Mi Band 4 and click on the appropriate icon. It's important that the bracelet is not connected to any other phone at this point, since it can only maintain an active connection to one host at a time.

When the app starts searching, a list of available devices will appear on the smartphone screen. If the bracelet is new, it will be identified by its serial number. If the device has been previously used, you may need to reset the settings on the tracker itself via the System menu -> Reset (Bind). After selecting the device on the phone screen and on the bracelet display, the confirmation code will appear.

The code matching is a guarantee of secure connection and protection against interception. Press the confirmation button with the tick on the touch screen of the bracelet. At this point, the encryption keys will be exchanged, and the devices will be connected. The process can take from 10 to 30 seconds, depending on the quality of the radio signal.

  • 📱 Make sure that the smartphone screen is unlocked when you search for the device.
  • 🔋 The bracelet must be at least 20% charged to complete the procedure successfully.
  • 📶 Keep your phone and bracelet at a distance of no more than 1 meter from each other.

☑️ Pre-conjugation checklist

Done: 0 / 4

Configure access rights and permissions in Android

The One UI operating system installed on Samsung smartphones has aggressive power saving algorithms that can force the background processes of the Mi Fit application to close. This causes the bracelet to stop receiving notifications of calls or messages, although the Bluetooth connection formally remains active. To avoid this, you need to manually configure exceptions for the application.

Go to your phone settings, look for the Apps section, and look for Mi Fit (or Zepp Life) in the app menu, select Battery and set Unlimited or Unlimited mode, which will prevent the system from killing the sync process even if the phone screen is off for a long time, and Contacts, Phone, SMS, and Notifications should be activated in the permissions section.

Access to location history is also important, as Android 10 and above requires you to select the “always allow” option, not just “When using the app,” which is critical for the proper function of route tracking and sleep, since the bracelet transmits accumulated data in packets, and the system needs to allow background activity.

Why is Samsung killing background processes?
Samsung smartphones are equipped with powerful processors and large screens, which requires strict control of power consumption. The system automatically closes applications that are not used directly to extend battery life. For activity trackers, this behavior is destructive, so manually adjusting exceptions is mandatory.

⚠️ Warning: After the phone's operating system is updated, permission settings may reset to factory values.Always check the status of the Mi Fit app after a major Android update.

Comparison of functionality when connecting to different OS

Users often wonder if the bracelet’s capabilities are different when working in conjunction with Samsung compared to other Android smartphones. Overall, Google’s ecosystem provides standardized access to the Bluetooth API, which makes the tracker work predictable. However, there are nuances in implementing notifications and widgets that depend on the manufacturer’s shell.

Samsung devices can quickly customize through desktop widgets, allowing you to see step statistics without opening the app. In addition, integration with Google Fit services works steadily, allowing you to synchronize health data into a single profile.

FunctionImplementation on SamsungLimitations
NotificationsFull support (SMS, Messengers)Impossible to respond to a message
SynchronizationAutomatic backgroundRequires energy saving settings
Managing musicIt works with a standard player.There may be delays with third-party players
Phone searchAvailable.It only works within Bluetooth radius.

It’s worth noting that some specific features, such as camera or music player control, can be delayed on older phones, due to the implementation of the BLE (Bluetooth Low Energy) protocol across different hardware versions, but for basic activity tracking and sleep, the differences are almost imperceptible.

Solving Common Connection Problems

Despite the simplicity of the procedure, users sometimes encounter situations where the bracelet is not in place or the connection is constantly broken.The most common reason is the “junk” in the Bluetooth cache of the phone module, in which case it helps to clean the list of associated devices in the Bluetooth settings of the smartphone itself before re-trying to connect via the application.

If the bracelet is visible on the list but doesn't pair, try rebooting both devices. Often the problem lies in the hung Bluetooth service process on the phone. Also effective is to remove the Mi Fit app, restart the phone, and re-install the program from scratch, which allows you to reset the erroneous configuration files.

In rare cases, the problem may be the firmware version of the bracelet itself. If the device has been idle for a long time, its software may be very outdated. the Mi Fit app will offer to update the firmware immediately after you connect, but if the process freezes, try to bring the bracelet closer to the antenna of the phone (usually it is located at the top of the case).

  • 🔄 Completely reset the bracelet through the System menu» -> «Unbind».
  • 📡 Turn on and off flight mode on your phone to restart communication modules.
  • 🗑️ Remove the bracelet profile from the list of “My devices” in the Mi Fit app.

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If the bracelet has stopped vibrating when notified, check whether the phone has either “Do Not Disturb” or “Silent Mode” on, as these settings are often synchronized with the wearable device.

Optimization of work and additional settings

After a successful connection and basic setup, it makes sense to fine-tune the parameters to personalize the experience. In the app, you can customize the display of the dials, the order of the output information and the sensitivity of the sensors. For the Mi Band 4, there are many third-party dials available that significantly expand the visual capabilities of the device.

Special attention should be paid to setting up notifications. In the application, you can select specific applications from which notifications will be duplicated on the wrist. It is recommended to turn off secondary applications to avoid overloading the bracelet processor and save battery power.

For sports users, it is important to adjust the pulsemeter correctly. In the settings, you can choose the frequency of the pulse measurement: automatic, once per minute or once every 10 minutes. More frequent measurement gives accurate statistics, but reduces battery life. The optimal balance for everyday wear is considered to be a measurement interval of 1 minute, which provides a detailed schedule without rapid discharge.

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Regular data synchronization (opening the application at least once a day) is necessary for calibrating the pedometer and correctly calculating sleep statistics.

Why does the bracelet not show notifications from WhatsApp or Telegram?
Most often, the problem lies in the missing permission to read notifications for the Mi Fit app. Go to the phone settings, search for “Access to Notifications” and make sure that the switch opposite Mi Fit is activated. Also check if the background limit for the messenger itself is worth it.
Can I connect Mi Band 4 to two phones at the same time?
Officially, the bracelet only supports active connection to one smartphone, but there is a fast-switching technique: you need to break the connection in the application on the first phone (without resetting the bracelet), and then search for the device on the second phone, the process will take about 10-15 seconds.
How to reset the bracelet to factory settings?
To reset completely, look for System in the bracelet menu, and scroll to Unbind or Factory Reset. Confirm the action, and then the device will return to the state it was in when you bought it, and all data on it will be deleted.