Connecting Xiaomi Mi Band 4 to Samsung Phone: A Complete Guide to Typical Error Solutions

Why sync Mi Band 4 with Samsung phone and what it takes

Despite its age (released in 2019), the Xiaomi Mi Band 4 fitness bracelet remains one of the most popular wearables due to its combination of functionality and affordable price. However, Samsung users often face difficulties when connecting it - especially if we are talking about new models of smartphones on Android 13/14 or One UI 5.0/6.0. In this article, we will analyze not only the standard pairing procedure, but also the nuances that the manufacturer does not mention.

Before you start, make sure you have:

• 📱 Samsung smartphone with Android 6.0 or later (in practice it works more stable on Android 8)+).
• 🔋 Charged Mi Band 4 (minimum 20% battery, otherwise the connection may be interrupted).
• 📶 Stable Internet connection (for downloading the application and updating the bracelet firmware).
• 🛡️ Disconnected VPN Firewalls (they can block Xiaomi servers).

Important: Mi Band 4 officially only supports Mi Fit (or its rebranded version of Zepp Life for some regions), and third-party apps like Notify & Fitness or Mi Band Master can run unstable, especially on new firmware from Samsung.

Step 1: Prepare Samsung’s phone for connection

Before pairing, you need to configure your smartphone to avoid common errors like "Device failed" or "Device search fails." Let's start by checking the key parameters:

1. Turn on Bluetooth and geolocation: Go to Settings → Connections → Bluetooth and activate the module. Geolocation (Settings → Privacy → Permits → Geodata) must be enabled to work Mi Fit.
2. Allow installation from unknown sources (if you download APK): In Settings → Security → Install unknown applications, select a browser and allow installation.
3. Turn off battery optimization for Mi Fit: Go to Settings → Device Care → Battery → Background work and add Mi Fit to the exclusion list.

⚠️ Attention: On Samsung Galaxy phones S22/S23 one UI 5.1+ Bluetooth can automatically turn off to save energy. To avoid this, go to Settings → Connections → Bluetooth → ⚙️ (gear) → Additionally, and disable the option "Automatic Bluetooth Shutdown".

Bluetooth and geolocation enabled

Mi Fit application installed (version 4.6.0 or later)

VPNs and firewalls disabled

Mi Band 4 is charged and is next to the phone

Samsung's Battery Optimization for Mi Fit Disabled-->

Step 2: Install and configure the Mi Fit application

The official Mi Fit app is available on Google Play, but for some regions (e.g. Europe) it may be called Zepp Life. If your Samsung doesn't find it in the store, download the APK from Xiaomi's official website or a trusted source like APKMirror.

After installation:

1. Open Mi Fit and sign up (or sign in) through your Xiaomi, Google, Facebook account or phone number.
2. In the main menu, click Profile → Add Device → Bracelet → Mi Smart Band 4.
3. Confirm permissions to access notifications, contacts and fitness data (otherwise, the bracelet will not show incoming calls and SMS).

Critical detail: Samsung phones with Android 12+ must manually allow Mi Fit to access notifications for each application separately.

1. Go to Settings → Notifications → Additional settings → Access to notifications.
2. Find the Mi Fit and turn on the switch.
3. Return to the app and re-synchronize the bracelet.

Android 10 or older

Android 11

Android 12

Android 13

Android 14-->

Step 3: Sync Mi Band 4 with Samsung Phone

Now, to the connection itself, follow the instructions carefully, and at this point, errors are most common:

1. Activate the bracelet: Press the Mi Band 4 touch button to wake up the screen. Scroll down to "Put" (in English firmware - "Pair").
2. Start searching in Mi Fit: In the app, click Connect → Mi Smart Band 4. The scan will begin.
3. Confirm pairing: When the bracelet appears on the list, tap it. The Mi Band 4 screen will have a 6-digit code — compare it to the code in the app and confirm.

If the bracelet is not present:

• 🔄 Reboot Bluetooth on your phone (Settings) → Connections → Bluetooth → ⚙️ → Reset).
• 📱 Make sure that the Mi Band 4 is not connected to another device (reset it via bracelet settings). → Shut down).
• 🔋 Check the bracelet’s charge – at levels below 15%, it may not appear in the list of devices.

Step 4: Set up notifications and calls on Mi Band 4

By default, Mi Band 4 only shows basic notifications (calls, SMS) to configure notifications from messengers (WhatsApp, Telegram) or social networks:

1. In Mi Fit, go to "Device Profile" → "Notifications".
2. Turn on the "Call Notifications" and "Application Notifications" switch.
3. Select the apps you want to see on your bracelet (maximum 10 apps).

For the Samsung Galaxy with One UI, there is a caveat: some system notifications (such as from Samsung Health or Bixby) may or may not be duplicated.

• 📵 Turn off notifications from Samsung Health in bracelet settings (they conflict with Mi Fit data).
• 🔕 In Android settings, disable Repeat Notifications for selected apps.

Step 5: Solving Common Problems

Even with the right setup, Samsung users may encounter errors.

1. Bracelet connects but does not synchronize data

The reason: conflict with Samsung Health or Google Fit.

Decision:

• Open Settings → Apps → Samsung Health → Permits and disable access to fitness data.
• In Mi Fit, go to Settings → Data Sync and select Only Mi Fit.

2.The bracelet shuts down in a few minutes.

The reason: One UI battery optimization kills Mi Fit background processes.

Decision:

• Add Mi Fit to the optimization exceptions (Settings → Device Care → Battery → Background work).
• Turn off the "Adaptive Battery" mode in the developer settings (if enabled).

3. no notifications from messengers are coming

Reason: Android 13+ requires additional permission to read notifications.

Decision:

• Go to Settings → Applications → Mi Fit → Permissions → Notifications and enable “Access to Notifications”.
• Restart the app and bracelet.

⚠️ Attention: On Samsung Galaxy phones A54/A73 firmware-one UI 5.1 There may be a problem where the Mi Band is 4 Shows notifications with delay until 5 It's related to the energy-saving Knox algorithm, and the solution is to disable Performance Optimization for Mi Fit in the battery settings.

💡

If the bracelet stopped vibrating at notifications, check the sound settings on the phone. On Samsung with One UI 4.0+, the vibration of the bracelet is tied to the sound profile of Sound/Vibration. If the No Sound mode is selected, the vibration on the Mi Band 4 will also turn off.

Step 6: Additional settings and optimization

After a successful connection, you can configure Mi Band 4 to your needs:

1. Setting up the screen and dials

There are more than 50 dials available in the Mi Fit, but there is a limitation for Samsung: some animated dials can brake due to the features of the Exynos processors.

• Choose static dials without animation.
• Turn off "Automatic change of dial" in the bracelet settings.

2. Monitoring of sleep and heart rate

For accurate tracking:

• Enable Smart Heart Rate Monitoring (measuring your heart rate every 30 minutes).
• Disable “Sleep Autodetermination” – on Samsung, it often works falsely due to background processes.

3. Bracelet battery savings

The Mi Band 4 is designed to last longer:

• Reduce the brightness of the screen to 2-3 divisions.
• Turn off the "Raise your hand to activate" (saves up to 20% charge).
• Update the firmware only when connected to charging.

💡

On Samsung Android 14 phones, the Mi Band 4 needs to be turned off automatically in Bluetooth settings to keep the Mi Band running, otherwise the bracelet will detach after 10-15 minutes of inactivity.

FAQ: Frequent questions about connecting Mi Band 4 Samsung