Connecting Xiaomi Mi Band 4 to iPhone: full instruction with error solutions

Why is Mi Band 4 still relevant in 2026?

The Xiaomi Mi Band 4 fitness bracelet, released in 2019, remains one of the most popular wearables due to its combination of affordable price, reliability and wide functionality. Despite the release of new models (Mi Band 5/6/7/8), the fourth version continues to be in demand – especially among iPhone owners who want to get basic tracker features without unnecessary costs.

But connecting the Mi Band 4 to the iPhone has its own nuances: the limitations of iOS, the features of the Mi Fit app (now Zepp Life), and possible synchronization errors. In this article, we will analyze the step-by-step instructions based on current versions of the software (2026), and also solve typical problems that users face.

Note that the Mi Band 4 does not support the official Apple Health app directly — data will have to be exported manually or through third-party services, but that does not prevent you from using the bracelet to track your steps, sleep, heart rate and even control music on your iPhone.

What do you need to connect Mi Band 4 to your iPhone?

Before you start syncing, make sure you have everything you need:

• 📱 iPhone with iOS 12.0 or later (iOS 15 recommended)+ steady-work).
• 🔋 Charged Mi Band 4 (minimum 20% battery).
• 📲 The Zepp Life app (formerly Mi Fit) from the App Store.
• 🔄 Bluetooth enabled on iPhone (version 4.0 and higher).
• 🌐 Stable Internet connection (for downloading applications and updates).

Important: If you’ve previously used the Mi Band 4 with an Android smartphone, reset the bracelet to factory settings via the menu on the device (Settings → Reset) to avoid conflicts when connecting to your iPhone.

Step-by-step: how to connect Mi Band 4 to iPhone

Follow this algorithm to sync the bracelet with your iPhone without errors:

1. Install Zepp Life: Download it from the App Store (free of charge). Launch and register via Mi Account, Google, Apple ID or phone number. Without registration, you can't connect!
2. Turn on Bluetooth on your iPhone: Go to Settings → Bluetooth and activate the feature. Make sure the iPhone sees other devices (e.g. headphones).
3. Add the bracelet to Zepp Life: In the app, click Profile → Add Device → Mi Smart Band 4. Follow the instructions on the screen.
4. Sync devices: When the app asks, tap the Mi Band 4 sensor to confirm the connection. wait until the process is complete (may take up to 2 minutes).

Charge Mi Band 4 to 50%|

Install Zepp Life from the App Store|

Register in the app |

Turn Bluetooth on iPhone|

Reset the bracelet if it was tied to another phone-->

If you have a “failed to connect” error at the synchronization stage, try:

• 🔄 Reboot iPhone and bracelet.
• 📱 Remove Mi Band 4 from the list of Bluetooth devices in the iPhone settings and reconnect.
• 🔌 Shut down. VPN or “Saving Traffic” mode in the iPhone settings.

Configure notifications and basic functions

After successfully connecting Mi Band 4 to the iPhone, you can configure:

1. Notifications of calls and messages

To make the bracelet vibrate when incoming calls or SMS:

1. Open Zepp Life → Select Mi Band 4 → Notifications
2. Activate switches for Calls, Messages and other applications (WhatsApp, Telegram, etc.).
3. In iPhone Settings, go to Bluetooth → Mi Band 4 → Allow notifications.

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If notifications don’t come, check if iOS has blocked background activity of the Zepp Life app. Go to Settings → Zepp Life → Background Update and turn on the option.

2. Sleep and pulse tracking

By default, the Mi Band 4 automatically captures sleep phases (light, deep, REM) and measures your heart rate every 30 minutes to adjust the frequency of your sleep.

• 🩺 Device profile → Monitoring of heart rate → Select the interval (e.g., "Every 10 minutes").
• 😴 Son → Automatic monitoring → activate the option.

Attention! Frequent pulse measurements ("Every minute") significantly reduce the bracelet's time from a single charge.

3. Music management

Mi Band 4 can switch tracks to iPhone, but you need to:

1. Enable the feature in Zepp Life → Music.
2. Run the player on the iPhone (Apple Music, Spotify, YouTube Music).
3. Twice touch the sensor of the bracelet for pause/playback or swipe left/right to switch tracks.

Solving common connection problems

Even with the right setup, iPhone users sometimes encounter errors.

Critical error: If you stopped connecting after the iOS Mi Band 4 update, delete the Zepp Life app, restart your iPhone and install it again, which helps 90% of the time.

⚠️ Do not use third-party apps to connect the Mi Band 4 to your iPhone (such as Notify & Fitness) and may disrupt the official software and cause the bracelet to crash.

How to export data from Mi Band 4 to Apple Health

Zepp Life doesn’t sync with Apple Health, but there are workarounds:

Method 1: Using Health Sync

1. Install Health Sync from the App Store.
2. Open the app and select Zepp Life (Mi Fit) as the source.
3. Allow access to Apple Health and select data for export (steps, sleep, pulse).
4. Press Sync.

Method 2: Manually through files

In Zepp Life, you can export data in.csv format:

1. Go to Profile. → Export of data.
2. Select the period and data types (e.g., “Activity” or “Sleep”).
3. Send the file to the mail or iCloud Drive.
4. Import data to Apple Health through third-party services (e.g. QS Access).

⚠️ Attention! With manual export, sleep phase data (light/deep) can be displayed in Apple Health as a general sleep czas without detail.

Update firmware Mi Band 4 via iPhone

The firmware of the bracelet affects the stability of work, the addition of new features and compatibility with iOS.To update the Mi Band 4:

1. Open Zepp Life and go to Device Profile → Firmware Update.
2. If a new version is available, click Update.
3. Wait until the process is complete (the bracelet will reboot automatically).

The latest stable firmware for the Mi Band 4 as of 2026 is 1.0.9.54. Updates are rare, but fix critical bugs (such as a sync error with iOS 17).

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Updating your firmware through your iPhone takes longer than it does through Android, due to the limitations of iOS. If the process is 90% frozen, wait 10-15 minutes before you interrupt the connection.

Mi Band 4 compared to new models for iPhone owners

If you’re in doubt whether to buy the Mi Band 4 in 2026 or whether you’d rather take a new model, note the key differences:

Conclusion: Mi Band 4 This is the best option if you need basic features (steps, sleep, pulse, notifications) at the lowest price. 7/8 justified if important SpO₂, Always on display and advanced sleep analytics.

FAQ: Answers to Frequent Questions