Connect Xiaomi Mi Band 4 to iPhone 6: full instructions with solutions to typical errors

The Xiaomi Mi Band 4 fitness bracelet remains a popular gadget even years after its release — its combination of price, functionality and reliability is difficult to beat. However, iPhone 6 owners often face difficulties when trying to sync: an outdated version of iOS, Bluetooth limitations or errors in the Mi Fit application can turn a simple procedure into a puzzle. In this article, we will analyze not only the basic steps of connection, but also the nuances that the manufacturer does not say: from choosing the right version of the application to bypassing typical bugs.

It’s important to understand that the iPhone 6 with iOS 12.5.7 (the most supported version for this model) is not officially included in the list of compatible devices for the latest versions of the Mi Fit. However, connection is possible – you just need to follow proven algorithms and use workarounds. We tested all the steps on the real device and collected current data for May 2026, including working versions of the software and alternative methods of synchronization.

If you've tried to plug in the wristband and you've got an error like "Can't find the device" or "Incompatible Bluetooth version," don't be quick to blame the technology. 90% of the time, the problem is solved by setting up the phone or reinstalling the app, and then Step-by-step, illustrating the key points and solutions for each step.

1. Compatibility Check: Does the Mi Band 4 work with the iPhone 6?

Before you start connecting, make sure your iPhone 6 meets the minimum requirements. Xiaomi officially claims to support devices with iOS 10.0 and newer, but in practice there are nuances for the Mi Band 4:

• 📱 iOS Version: iOS 9.0 is minimum required, but iOS 12.5.7 (the last available for iPhone 6) is recommended for stable operation. → Mainstream → About this device.
• 🔵 Bluetooth: Bracelet uses Bluetooth 4.2, which is supported by the iPhone 6. However, older versions of iOS may have problems connecting to low-power devices (BLE).
• 📲 Mi Fit: Latest versions (above 4.6.0) may not be installed on iOS 12.5.7. You will need to download an older version (more on this below).

If your phone meets these criteria, move on to the next step, and if not, consider alternative ways to connect (e.g., via a friend’s Android smartphone for initial setup) or upgrade your phone.

⚠️ Note: On iPhone 6 with iOS 12.5.7, you cannot install the latest Mi Fit versions through the App Store. When you try to download, you will receive an error “Required iOS 13.0 or later).

2.Preparing iPhone 6 for connection

Before syncing, you need to set up your phone to avoid typical errors.

Update iOS to the latest available version (12.5.7)|Enable Bluetooth in Settings → Bluetooth|Make sure that your phone has at least 500MB of memory.|Turn it off. VPN proxy-server|Reboot your phone (hold the Home buttons) + Power before the Apple logo appeared)-->

Pay special attention to Bluetooth settings:

1. Open Settings → Bluetooth.
2. Make sure the switch is active (green).
3. If there are devices on the list MI Band 4 or similar – remove them (swipe left) → «Forget this device»).
4. Enable Detection mode for all devices (if there is such a point).

Also check the geolocation and permits:

• 📍 Go to Settings. → Confidentiality → Geolocation Services and Enable Them.
• 🔒 In the same menu, find Mi Fit (if the application is already installed) and select "When using».

⚠️ Note: If your iPhone 6 has previously installed beta or jailbreak iOS, this may block the correct operation of Bluetooth with wearable devices. → Mainstream → Reset → Reset the network settings.

3. Installation and configuration of the Mi Fit application

The main difficulty when connecting Mi Band 4 to the iPhone 6 is installing a compatible version of Mi Fit. The latest versions from the App Store require iOS 13+, So you're gonna have to use a workaround:

Method 1: Installation via App Store (if available)

Try finding Mi Fit in the App Store. If the app is displayed and the Download button is available, install it. If not, go to Method 2.

Method 2: Install the old version via iTunes (Windows/macOS)

1. Download iTunes for Windows or use Finder on macOS Catalina and later.
2. Connect your iPhone 6 to your computer via cable.
3. Find the Mi Fit page in the App Store on your computer and click Download.
4. If there is an error about incompatibility, download IPOld version A file (e.g. 4.6.0) from trusted sites like IPA Library.
5. Install. IPAnd through iTunes/Finder Or tools like AltStore or Sideloadly.

After installation:

1. Open Mi Fit and register (via Xiaomi Account, Google or Apple) ID).
2. Select the region of Russia (or your country) – this is important for the correct operation of notifications.
3. In the app menu, tap "Profile» → «Add the device» → «Bracelet» → Mi Smart Band 4.

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If you register with Mi Fit and you get a "failed to connect to the server" error, try connecting to another Wi-Fi network or turning on mobile data, often with the ISP blocking traffic.

4. Step-by-step connection of Mi Band 4 to iPhone 6

Now, to the connection itself, follow the instructions carefully, the order of action is important.

1. Activate the bracelet: Charge the Mi Band 4 to 100% (charging indicator will light up green). Press the touch button of the bracelet to wake it up. You will see the Mi logo.
2. Device search: In the Mi Fit app, click "Add Device» → «Bracelet» → Mi Smart Band 4, the search will begin.
3. Synchronization: When the bracelet appears in the list (the name will be in the format) MI Band XXXX), You tap it. The bracelet will have a 6-digit code -- compare it to the code in the app and confirm the pairing.
4. Firmware update: Once connected, the app will prompt you to update the bracelet firmware. Don't refuse, this will fix the bugs and add notification support. The process will take 5-10 minutes.

If the device is not in the search stage:

• 🔄 Reset the bracelet: connect to charging, hold the touch button for 10 seconds until the logo appears.
• 📴 Turn off/turn on Bluetooth on iPhone.
• 🔌 Try connecting in another room (possibly interference from other devices).

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If the bracelet is connected but notifications are not coming – check the permissions for Mi Fit in Settings → Notifications and enable the option “Show on the lock screen».

5. Set up notifications and additional functions

Once you've successfully connected, you can set up Mi Band 4 for maximum functionality. Open the Mi Fit app and go to your bracelet section.

Main settings:

• 🔔 Notifications: Enable the Notifications option and select apps (WhatsApp, Telegram, calls, etc.) on iPhone 6, you may need manual permission for each app in Settings → Notifications.
• 🌙 Screenlighting: Adjust the backlight time (recommended 5-10 seconds) and brightness.
• 🏃 Activity tracking: Activate pedometer, sleep and heart rate monitoring. For accuracy, indicate your height, weight and age in your profile.

Hidden functions:

Few people know, but Mi Band 4 supports:

• 🎵 Music management: Enable the option “Player control” in the bracelet settings – you can now switch tracks swipes around the screen.
• 🔍 Phone search: The bracelet menu has a “Find phone” function – when activated, the iPhone will begin to vibrate (even if the silent mode is silent).
• 🔋 Saving Charge: Turn off the permanent pulsemeter (if not needed) in Settings → Monitoring of heart rate → Turn it off.

To set the dial:

1. In Mi Fit go to "Profile» → «Mi Smart Band 4» → «Dials».
2. Choose your favorite design (free options are marked with a green tick).
3. Click on “Sync” to apply the changes.

6. Solving common problems

Even after a successful connection, iPhone 6 users may encounter bugs, and here are the most common ways to fix them:

Problem 1: The bracelet shuts down in a few minutes

The reason: iOS aggressively optimizes the background of apps, especially on older devices.

Decision:

1. Go to Settings. → Battery and disable “Battery Charge Optimization” for Mi Fit.
2. B Settings → Mainstream → Content Update Enable Background Update for Mi Fit.

Problem 2: Notices are not coming.

Reason: On iOS 12, notifications for third-party apps are often blocked.

Decision:

• Check the permissions in Settings → Notifications → Mi Fit (must include Banners and Sounds»).
• In the bracelet settings in Mi Fit, enable “Show the contents of notifications”.
• Reboot your iPhone and bracelet.

Problem 3: The bracelet does not synchronize sleep/step data

Cause: Time zone conflict or synchronization failure.

Decision:

1. Make sure the iPhone and bracelet have the same time (enable automatic synchronization in Settings) → Mainstream → Date and time).
2. In Mi Fit, go to the bracelet profile and click on “Sync Data” manually.
3. If it doesn’t help, remove the bracelet from the application and connect again.

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If the bracelet has stopped responding to touch after updating the firmware, reset (hold the 20 seconds button) and reconnect. This will correct interface errors.

7.Alternative applications for Mi Band 4

If Mi Fit is unstable, consider third-party apps.They often offer more features and are better optimized for older iPhones:

To install alternative applications:

1. Remove the Mi Fit (if installed).
2. Download the selected application from the App Store.
3. Reconnect the bracelet through a new app (algorithm similar).

⚠️ Note: When using third-party apps, some features (such as Xiaomi’s branded dials) may not be available, and problems with synchronizing health data with Apple Health may also be possible.

8. Optimization of the bracelet with iPhone 6

To ensure that the Mi Band 4 runs on an outdated iPhone, follow these tips:

• 🔋 iPhone charge savings: Turn off background update for unnecessary apps (Settings) → Mainstream → Content updates. This will reduce the Bluetooth load.
• 📶 Stable connection: Avoid connecting to other Bluetooth devices (earbuds, speakers) at the same time. iPhone 6 does not do well with multiple devices BLE-join.
• 🔄 Regular synchronization: Manually synchronize data 1-2 times a day (in Mi Fit tap on the icon of the bracelet) → «Synchronize»).
• 🛠 Cache Cleanup: Once a week, delete the Mi Fit cache (Settings) → Mi Fit → Clear the cache in the iPhone settings).

If the bracelet started to brake:

• Remove unnecessary dials (they take up the memory of the bracelet).
• Turn off constant heart rate monitoring (this severely drains the battery).
• Update the bracelet firmware via Mi Fit (if available).

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For maximum stability, roll back to the firmware of the 1.0.9.14 bracelet - it works best with iOS 12. To do this, use the Mi Band 4 Tools tool on a friend's Android device.

FAQ: Frequent questions about connecting Mi Band 4 iPhone 6