Sync Xiaomi Band 4 with Samsung: The Complete Guide

Modern wearables require a stable connection to a smartphone to work properly, and the Xiaomi Mi Band 4 bundle with Samsung devices is considered one of the most popular in the Android ecosystem.The initial pairing process usually takes no more than five minutes, however, users often face the nuances associated with aggressive battery optimization in the One UI shell. Proper setting at this stage ensures that notifications will come instantly, and data on the pulse and steps will not be lost.

Owners of the South Korean brand’s phones often complain of spontaneous connection breaks due to the specifics of the energy saving system. To avoid constant reconnection and loss of activity history, a number of preliminary steps must be taken before launching a companion app. Ignoring these steps can lead to the fact that the tracker will work in a simple clock mode, without transmitting data to the phone.

This article details an algorithm that avoids the typical pairing errors between gadgets, and we'll look at not only the standard procedure, but also the hidden settings that are often overlooked, and the stability of the connection depends on the correctness of each item in the instruction.

Preparation of equipment and software

Before starting the procedure, make sure your Samsung smartphone is running the current version of the Android operating system. Outdated versions of firmware may contain errors in the Bluetooth Low Energy stack that prevent new devices from being correctly detected. Also check the bracelet’s charge – for successful synchronization, the charge level must be at least 20%.

While the original fix is Mi Fit, it is increasingly recommended to use Zepp Life (formerly known as Mi Fit) for new accounts and advanced functionality. At the Google Play store, make sure the app has all the necessary permissions, especially access to geolocation, which is required for a Bluetooth scanner to work on Android.

Be sure to clear the list of previously paired devices in Bluetooth settings if the bracelet has previously connected to another phone.Having an old "tail" in the system can block the attempt of a new connection, as the tracker can try to find the previous host.

⚠️ Warning: Do not try to connect the bracelet directly through the standard Bluetooth menu in Android settings.This will result in a pairing error and the device will become unavailable for the application until completely reset.

Make sure that the NFC module (if you have one in your phone model) and GPS are enabled, as some location synchronization features require them to be active, and checking these settings before starting will save time diagnosing potential problems.

Step-by-step instructions for connecting

Start by turning on Bluetooth on your smartphone and launching the installed Zepp Life or Mi Fit app. Sign in to your account or register a new one using your email address or phone number. After logging in, go to the Profile tab and select Add Device, then search in the Mi Band 4 list.

The app will start searching for available trackers, at which point the bracelet screen may display a vibration and request for confirmation of pairing. If the Bluetooth icon appears on the screen, tap the touch button to activate the search mode. The app on the phone should display the name of your device.

Once you select the device in the list, the app will request confirmation. The same codes or just a pairing request should appear on the smartphone screen and on the bracelet screen. Click "Confirm" on both devices. The process of installing the dial profiles and the basic configuration will take from 30 seconds to 2 minutes.

If the connection is not established on the first try, try rebooting your smartphone, which often solves problems with suspended Bluetooth services, and also helps to turn off and re-energize the Bluetooth module immediately before trying a search.

Setup of permissions and optimization for Samsung

Samsung smartphones are famous for their strict energy saving policy, which can kill the background processes of the tracker application. To keep the Mi Band 4 running smoothly, you need to remove the Zepp Life app from the optimized list. Go to Settings → Apps → Zepp Life → Battery and select No Limits mode.

Then set up autostart. In the Settings menu → Device Maintenance → Battery → Autostart applications find the desired application and activate the switch. This ensures that the sync service will start immediately after the phone is turned on, without waiting for manual intervention by the user.

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Use the App Protection feature in Samsung’s security settings to avoid accidentally removing or disabling the tracker app when cleaning up memory.

It is also important to check the permissions in the Permission Manager section, and make sure that the app is allowed to run in the background, have access to contacts, call logs, and SMS if you want to see these notifications on your wrist, and without these permissions, the bracelet's functionality will be substantially curtailed.

After making all the changes, force the application to close and run it again, and the system must stop restricting its operation, which will positively affect the stability of the connection.

Working with notifications and notifications of applications

One of the main functions of the smartphone-tracker bundle is to display notifications. In the Zepp Life app, go to your device profile and select "Application Notifications." Here you will see the full list of programs installed on your Samsung.

Activate the switches next to the apps you want to see on the Mi Band 4 screen, which can be messengers, email clients or social networks. Remember that the bracelet only displays the text of the message; you can not respond to them with it due to the lack of a keyboard and microphone in this model.

To correctly display Cyrillic characters (Russian) in the bracelet settings, the appropriate language bar should be selected. This is usually set automatically, but if you see Krakozabras instead of text, check the language settings in the bracelet settings section inside the application.

You can set the vibration and the time of the notification, you can set a time limit for the notification to disappear from the screen, or you can set up repeated vibrations if you missed the call, and these subtle settings make it more comfortable to use the device.

Synchronizing Health and Activity Data

The main task of the tracker is to collect biometric data. Xiaomi Mi Band 4 can measure the pulse, count steps, analyze sleep phases and record various types of physical activity, all this data is stored in the cloud and synchronized when you open the application.

To accurately calculate steps and calories, it is important to enter your anthropometric profile correctly. Height, weight and age directly affect the calculation algorithms. If this data is outdated, update it in the user profile so that the statistics are relevant.

The app allows data to be exported to other services such as Google Fit or Samsung Health, although direct integration may require third-party syncs, as the Xiaomi and Samsung ecosystems may conflict. However, the basic functionality of the Zepp Life app is completely autonomous and does not require third-party services to keep statistics.

⚠️ Attention: The pulse sensor on the back should fit tightly to the skin for correct readings. A weakened strap can lead to omissions in data or incorrect heart rate values.

Regular synchronization (opening the app at least once a day) is necessary to update the firmware and calibrate the sensors. Do not accumulate data for months, as this can lead to time tags being desynchronized.

Addressing common problems

Despite the simplicity, sometimes there are situations when the phone does not see the bracelet, and most often the problem is that the device is "hanging." To solve this problem, find on the back of the tracker contact areas for charging.

If the bracelet is displayed in Bluetooth as "Mi Band 4" but the app says "device is occupied," you need to remove it from the system. Go to the phone's Bluetooth settings, find the Mi Band 4, click on the gear icon or "i" and select "Forget the device" or "Cancel pairing." Only after that, repeat the search procedure in the application.

In rare cases, a complete reset to factory settings through the tracker’s menu (Settings → Reset) will remove all data from the device, but often resolves software errors that block the connection.

If neither method works, check the compatibility of Android versions and the app. Sometimes updating the Samsung operating system requires updating the companion app itself to the latest available version.

FAQ: Frequently Asked Questions