How to Connect Xiaomi Mi Band 4 to Samsung Phone: A Complete Problem Solutions Guide

The Xiaomi Mi Band 4 fitness bracelet remains one of the most popular wearables even years after its release — its reliability, autonomy and functionality attract users. However, Samsung phone owners often face difficulties in the first synchronization: the bracelet does not find the phone, the Mi Fit application gives out errors, and the Bluetooth connection is cut off, the reason lies in the peculiarities of Samsung communication protocols and the limitations of Xiaomi’s proprietary software.

In this article, we will break down three official ways of connecting (via Mi Fit, Zepp Life and Notify & Fitness), eliminate common errors like “Device Unconnected” or “Breaster Unresponsive”, and give recommendations for setting up notifications and energy saving.

1.Preparing Samsung phone for Mi Band 4 connection

Before you start syncing, make sure your Samsung phone meets the minimum requirements.The Mi Band 4 bracelet works with Android 5.0 and later, but for stable communication, a version at least Android 7.0 is recommended.

• 📱 Bluetooth: Mi Band 4 Requires Bluetooth 4.0 LE (Low Energy) Samsung models (e.g. Galaxy) S3 Note 2 may not support this protocol.
• 🔋 Bracelet charge: Battery level must be at least 20%.When the discharge is below this threshold, the bracelet enters energy saving mode and may not appear in the list of available devices.
• 📶 Internet connection: To download firmware and synchronize data will require stable Wi-Fi or mobile Internet.
• 🚫 Conflicting apps: Close programs like Google Fit, Samsung Health or Huawei Health – they can block Mi Fit’s access to sensors.

Pay special attention to permissions: on Samsung phones with Android 10+ The Mi Fit application must be given access:

• 📍 Geodane (to track activity);
• 📱 Notifications (to display messages on the bracelet);
• 🔄 Auto-run (to keep synchronization running in the background).

⚠️ Note: On some Samsung models (e.g. Galaxy) S21 or A52) Battery optimization automatically limits Mi Fit in the background. To avoid problems, add the app to exceptions: go to Settings → Caring for the device → Battery → Background restrictions and disable optimization for Mi Fit.

2.Select the app for connectivity: Mi Fit vs Zepp Life vs Notify & Fitness

Xiaomi officially recommends using Mi Fit or Zepp Life (formerly Amazfit) to sync the Mi Band 4.

For most Samsung owners, the best choice is Zepp Life, which is less likely to conflict with the One shell. UI But if you want notifications from messengers like WhatsApp or Telegram, you'll have to use Mi Fit or Notify & Fitness.

Critical information: On Samsung phones with Android 12+ Mi Fit may not see the bracelet due to Bluetooth access restrictions in the background.The solution is to disable the Automatic Bluetooth Shutdown feature in the power saving settings.

Download Mi Fit or Zepp Life from Google Play|Turn on Bluetooth and GPS phone-on|Charge the Mi Band 4 to 50% or more|Disable other fitness apps (Samsung Health, Google Fit)|Provide all permissions to the Mi Fit application-->

3. Step-by-step instruction: connection via Mi Fit

If you have chosen the official Mi Fit app, follow this instruction, the process takes no more than 5 minutes with proper preparation:

1. Install Mi Fit from Google Play (avoid third-party sources – they may contain viruses). Once installed, open the app and register with Mi Account (or sign in if you already have an account).
2. Click on the profile icon» → «Add the device» → «Bracelet» → «Mi Smart Band 4. The app will request Bluetooth and geodata access – let me ask you.
3. Turn on Bluetooth on your phone and wait until the Mi Band 4 appears on the list of available devices: 🔄 Reset the bracelet (press the touch button for 10 seconds until vibrations appear). 📱 Restart Bluetooth on your phone. 🔌 Connect the bracelet to charging for 1 minute, then turn off.

Once you find the bracelet, click on the name on the list. The Mi Band 4 screen will show a 4-digit code — confirm it in the app.

Wait until synchronization is complete (it can take up to 2 minutes) and after successful connection, the charge level and current time will be displayed on the bracelet screen.

If you encounter an error at the connection stage, “Can’t contact the device,” try:

• 📵 Turn off the energy saving mode on the phone.
• 🔄 Reinstall the Mi Fit app.
• 📡 Manually indicate MAC-Bracelet address (you can find it in the Bluetooth phone settings).

⚠️ Note: On Samsung Galaxy A and J-series phones (for example, A10 or J6) You may need to disable the dual Bluetooth connection function in connection settings.This option prevents stable synchronization with the Mi Band 4.

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If the Mi Band 4 isn’t visible in the device list, try connecting to it via the phone’s standard Bluetooth menu: find the bracelet in the list, pair, and then return to Mi Fit and try again.

4. Alternative way: Connecting via Zepp Life

The Zepp Life app (formerly Amazfit) often saves when Mi Fit refuses to work with Samsung, with its key advantage being more flexible sync settings and cloud backup support.

1. Download Zepp Life from Google Play. When you first start, select Add Device» → «Mi Band 4».
2. Turn on Bluetooth and wait for the app to find the bracelet. If the search drags on, click "Update List."
3. Once you detect Mi Band 4, confirm the connection on your phone and bracelet (click on the touch button when the code appears).
4. Finish the profile setting: gender, age, weight and activity purpose, and these are the data you need to correctly calculate calories and pulse zones.

Unlike Mi Fit, Zepp Life allows you to:

• 📊 Configure notifications to be displayed by app (e.g., show only WhatsApp and calls).
• 🏃‍♂️ Add custom training (such as CrossFit or Yoga).
• 🌙 Use the "Do Not Disturb" mode on schedule.

If the bracelet does not synchronize data (steps, sleep, pulse) after connecting, check:

• 🔄 Is background mode enabled for Zepp Life in battery settings.
• 📶 Is there any Internet access (data synced to the cloud).
• 🔋 Whether the bracelet charge level is sufficient (below 15% synchronization may not work).

5. Solving common connection errors

Even if you follow the instructions correctly, Samsung users may encounter errors, and consider the most common problems and solutions:

If none of the solutions worked, try alternative apps:

• 📱 Notify & Fitness for Mi Band – Supports notifications and screen customization.
• 📊 Mi Band Master - advanced settings for experienced users.
• 🔧 Tools & Mi Band – allows you to change dials and adjust vibration.

⚠️ Note: Samsung phones with Android 13 may need to manually allow Zepp Life to access the exact location (even if you are not using the same device). GPS Without it, the app will not be able to track activity correctly.

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If the Mi Band 4 is not connected through any application, the problem may be a hardware malfunction of the Bluetooth bracelet module.

6. Set up notifications and additional functions

Once you've successfully connected, you'll have to set up notifications, alarms and other functions, and on Samsung phones, you'll do this:

Notifications from messengers and calls

1. Open Mi Fit or Zepp Life, go to Device Profile» → «Notifications».
2. Turn on the Notifications switch and select the apps you want to see on your bracelet (e.g. WhatsApp, Telegram, Viber).
3. On Samsung, open the “Notifications” settings» → «Additional settings» → «Notifications on the locked screen** and enable the option for Mi Fit.

Setting alarm clocks

To activate the alarm on the bracelet:

1. In the app, go to "Alarm clocks» → «Add an alarm clock».
2. Specify the time, days of the week and the type of vibration (e.g., “Strong” or “Long”).
3. Activate the “Repeat” option if the alarm clock is to be running daily.

Additional functions

• 🏃‍♂️ Training Tracking: Enable automatic running/walk recognition in Settings → Monitoring of activity.
• 💤 Sleep monitoring: Activate in Settings → Sleep and indicate approximate time of rest.
• 🔒 Screen lock: In Zepp Life, you can set up automatic unlocking of the phone when holding the bracelet.

Important: On Samsung phones with One UI 4.0+ For the correct operation of notifications, you need to disable the function “Optimize notifications” for Mi Fit. → Notifications → Additional settings → Optimization of notifications.

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To ensure that notifications are displayed in Russian (not in hieroglyphics), in bracelet settings (Mi Fit) → Display. → Language) select "Russian" or "English».

7. Battery optimization and lag elimination

The Mi Band 4 is famous for its autonomy, which can last up to 20 days without recharging at standard settings, but on Samsung phones, the background can shorten the battery life to 7-10 days.

• 🔋 Turn off constant pulse monitoring (in Settings) → Heartbeat → Select the frequency of measurements manually»).
• 📴 Reduce the brightness of the bracelet screen to 2-3 divisions.
• 🛌 Turn off the hand lift to activate the screen (saves up to 15% charge).
• 🔔 Limit notifications to important applications only.

If the bracelet brakes or does not respond to touch, reset:

1. Connect the Mi Band 4 to the charger.
2. Press the touch button for 15-20 seconds until you feel the vibration.
3. After restarting, reconnect the bracelet through the application.

On Samsung phones with Android 12+ There may be delays in synchronization (up to a few minutes), due to limitations in background activity, to eliminate lags:

• Add Mi. Fit/Zepp Life Excluding Battery Optimization.
• Turn off the power saving mode for Bluetooth.
• Turn on auto-start for the bracelet application.

FAQ: Frequent questions about connecting Mi Band 4 Samsung