How to connect Xiaomi Mi Band 4 smartwatch to Samsung phone: full instructions

Why Samsung Owners Are Having Problems Connecting Mi Band 4

The Xiaomi Mi Band 4 fitness bracelet, released in 2019, is still one of the most popular wearables due to its price-to-feature ratio. However, users of Samsung phones (especially One UI) often have difficulty trying to sync, due to differences in Bluetooth protocols, manufacturer limitations, and Xiaomi’s proprietary software.

Unlike pure Android devices, Samsung smartphones have their own shell that can block the background activity of applications to save charge. In addition, the Mi Band 4 was originally developed to work with the Mi Fit application, which was eventually replaced by Zepp Life, which also causes confusion. In this article, we will discuss all the current ways of connecting for 2026, including bypassing typical bugs.

It is important to understand that the procedure may differ depending on the version of Android (10 to 14) and the phone model (for example, Galaxy S23 vs Galaxy A52).If you have previously tried to connect the bracelet and received an error like “Can not find the device” or “Sync interrupted” – do not rush to reset the settings. Most likely, the problem is solved by setting the permissions or choosing the right application.

What app to choose to connect Mi Band 4 to Samsung

Since 2023, the official Mi Fit app no longer supports Mi Band 4, but has been replaced by Zepp Life (formerly known as Amazfit), but both apps are still available on Google Play, and here’s what you need to know about each:

• 📱 Zepp Life is a modern solution with support for new firmware, but can require registration through Xiaomi Account or Zepp Account.+.
• 🔄 Mi Fit (Older version) – works with Mi Band 4, but can issue bugs on Samsung One phones UI 5.0+. Requires a rollback to version 4.6.0.
• 🛠️ Notify & Fitness is a third-party software for advanced users, which bypasses Samsung’s restrictions, but requires manual notification settings.
• ⚙️ Mi Band Master is an alternative for those who want more control over the function of the bracelet (e.g. custom dials).

For most users, Zepp Life is the best choice. However, if you have an Android 12/13 phone with aggressive battery optimization (like the Galaxy S22 or Galaxy Z Flip), you may need Notify & Fitness.

An important nuance: if you previously installed Mi Fit, before switching to Zepp Life, you need to remove the bracelet from the account in the old application, otherwise there will be a binding conflict.

Step-by-step: Connecting through Zepp Life

This method works on most Samsung phones with Android 9.0 and later. If you have an older version of the OS, skip the Mi Fit section.

1. Download Zepp Life from Google Play and register (you can use Google Account or Xiaomi Account).
2. Turn on Bluetooth on your phone and place the bracelet next to you (no further than 10 cm).
3. In the app, click "Add device" → "Breasure" → "Mi Smart Band 4".
4. It'll be on the bracelet. QR-code – scan it through the app or enter a 6-digit PIN manually.
5. Confirm pairing in the Android system window (importantly, some Samsung phones block this window – see the solution below).
6. Wait for the bracelet firmware update (if available).

If in step 5, the Samsung system does not show a pairing window:

⚠️ Attention: On phones with One UI 4.0+ (for example, Galaxy S21) Automatic connection protection may be triggered. Go to Settings → Annexes → Zepp Life → Permits → Additionally. → Allow pairing in the background.

Mi Band 4 is not connected to Samsung

Even with the right settings, synchronization can be interrupted. Here are the typical errors and their solutions:

If none of the methods helped, try to reset the bracelet to the factory settings:

1. On the bracelet, go to Settings → About the device → Reset.
2. Confirm the action by holding the touch button for 10 seconds.
3. Repeat the connection procedure again.

💡

Before resetting the bracelet, back up your data to Zepp Life: Profile → Settings → Backup. This will save your activity history.

Alternative ways to connect for advanced users

If the standard methods don't work, you can use third-party tools, and one of the most reliable is the Notify & Fitness for Mi Band app.

• 🔔 Set up custom notifications (including messengers and calls).
• 📊 Display advanced statistics (pressure, blood oxygen - if supported by firmware).
• 🎨 Set unofficial dials (including animated ones).
• 🔋 Optimize the battery consumption of the bracelet.

How to set up Notify & Fitness:

1. Install the application and provide all the permissions requested.
2. In Android settings, turn off battery optimization for it (Settings → Device Care → Battery → Background activity restrictions).
3. In the app itself, select "Connect New Device" → "Mi Band 4".
4. Follow the instructions on the screen (you may need to enter) PIN-bracelet).

⚠️ Note: When using third-party apps, Xiaomi may block certain features (such as payment via Mi Pay), and the risk of loss of warranty if the bracelet is damaged due to unofficial firmware is also increased.

Features of the Mi Band 4 with different models of Samsung

Performance and connection stability depend on the phone model, and the following are test data on popular devices:

For phones with One UI 4.0 and below (such as the Galaxy Note 10), it is recommended to:

1. Use Mi Fit version 4.6.0 (APK can be downloaded from APKCombo).
2. Turn off automatic update of the app in Google Play.
3. Manually add Mi Fit to the list "Do not optimize" in the battery settings.

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On Samsung Android 12+ phones, be sure to turn off the “Remove permissions for unused apps” feature in your privacy settings, otherwise Zepp Life will lose access to Bluetooth after the reboot.

How to check the success of the connection and set up notifications

Once the devices are paired, you need to make sure that all the functions are working correctly.

1. Connection Check: Open Zepp Life and make sure the main menu shows "Connected." The bracelet should have a green light on (when synchronized).
2. Set up notifications: In Zepp Life, go to Profile → Device Settings → Notifications. Turn on SMS switches, incoming calls and messengers. On your phone, in the settings of the messenger app (such as WhatsApp), allow "Show notifications."

Function test:

• Check the time display (if not updated, manually sync).
• Run a workout (such as “Walking”) and make sure the data is captured.
• Try to wake the bracelet with a raise of your hand (“Settings → Screen → Raising to wake up”).

If notifications do not arrive:

• 🔕 Make sure Android does not have "Do Not Disturb" mode enabled".
• 📵 Check if you have added Zepp Life to Sleeping Apps (on Samsung, this is done in Settings). → Caring for the device → Battery → Background constraints).
• 🔄 Reboot your phone and bracelet (hold the button on Mi Band 4 for 15 seconds).

Frequent questions about connecting Xiaomi Mi Band 4 to Samsung