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

The Xiaomi Mi Band 4 fitness bracelet remains one of the most popular gadgets for tracking activity, despite the release of new models, its main advantages are affordable price, long battery life and a wide range of functionality from sleep monitoring to smartphone notifications. However, iPhone owners often face difficulties when connecting: the application does not see the bracelet, the connection breaks, or data are not synchronized. In this article, we will discuss all the ways to connect the Mi Band 4 to the iPhone, including alternative methods and solving typical errors.

The contrast between the Apple and Xiaomi ecosystems creates additional difficulties: If the Android bracelet connects almost automatically, then iOS requires pre-setting notification resolution, updating the firmware and sometimes even resetting the gadget. We tested all the current methods on the iPhone 12/13/14/15 latest versions of iOS 16–17 and willing to share working solutions.

Note: If you have a Chinese firmware bracelet (the C version in the model name), it cannot be officially connected to an iPhone, you will need to flash it to the global version.

1.Pre-connection Preparation: What to Check for on iPhone and Mi Band 4

Before you start syncing, make sure your iPhone and bracelet meet the minimum requirements, which will save you 80% of the problems during the connection phase.

Requirements for iPhone:

• 📱 iOS version is not lower than 12.0 (recommended 15.0)+ steady-work).
• 🔋 iPhone battery charge above 30% – at low charge Bluetooth can turn off.
• 📶 Active Internet connection (Wi-Fi or mobile data) for downloading applications and updates.
• 🔒 Bluetooth permission and notifications for Mi Fitness or Zepp Life.

Requirements for Xiaomi Mi Band 4:

• 🔋 Bracelet charge at least 50% (at low charge, Bluetooth may not be turned on).
• 📦 Make sure the bracelet is not tied to another smartphone. If so, reset (instructions in the next section).
• 🌍 The firmware of the bracelet must be global (the version with the letter "A" or "E" in the title). Chinese versions ("C") are not compatible with iOS.

⚠️ Note: If you have previously used an Android bracelet, you need to untie it from your old Xiaomi account. Otherwise, the iPhone will not be able to connect - the system recognizes the gadget as "already tethered".

2.Reset Xiaomi Mi Band 4 to factory settings

If the bracelet has been in use, it needs to be reset, which will remove all data and untie the previous smartphone, the procedure takes less than a minute:

Method 1: Through the menu of the bracelet

1. On the Mi Band 4 screen, swipe up to open the menu.
2. Find the Settings (cog icon) and select it.
3. Scroll down to Reset (or Reset) and confirm the selection.
4. The bracelet will reset and show the welcome screen.

Method 2: Apply (if the bracelet is tied to another phone)

• 📱 Open the Mi Fitness or Zepp Life app on your old smartphone.
• 🔗 Go to Profile. → My devices.
• 🗑️ Click on Mi Band 4 and select Delete Device.
• ✅ After removal, the bracelet will automatically reset.

⚠️ Warning: After resetting, all data (steps, sleep, exercise) will be deleted from the bracelet. If it is important, first sync it with the old smartphone through the application.

3. Installation and configuration of the application for connection

Xiaomi officially recommends using the Mi Fitness app (formerly Mi Fit), but from 2023 it is gradually being replaced by Zepp Life.Both apps work with Mi Band 4, but have differences in interface and functionality.

Comparison of annexes:

Step-by-step installation of Zepp Life (recommended option):

⚠️ Note: When you first launch, Zepp Life will request access to Notices, Contacts and Health. Allow all requests - without this, call notifications and calls will not work. SMS.

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

Now, to the synchronization process itself, follow the instructions carefully, and this is where errors are most common.

Step 1: Activate the pairing mode on the bracelet

• 🔄 On the Mi Band 4 screen, swipe left until you see the Bluetooth icon (stylized letter "B").
• 🔍 Click on it - the bracelet will go into search mode (on the screen there will be an animation of the connection).

Step 2: Find the device in the application

• 📱 In Zepp Life, click Add Device → Mi Smart Band 4.
• 🔍 The app will start scanning, and when it finds the bracelet, it will show its serial number (e.g., the bracelet, MB4-A123...).
• ✅ Click Connect and confirm pairing on the bracelet (touch the ticks on the screen).

Step 3: Update the firmware (if necessary)

• 📥 Once connected, the app will offer to update the firmware. Agree - this will fix possible bugs and improve compatibility with iOS.
• ⏳ It takes 2-5 minutes to update. Don't turn off Bluetooth or shut down the app.

⚠️ Warning: If the bracelet has stopped responding to touches after the upgrade, reset (section 2) and reconnect. This is a rare error associated with incompatibility of firmware and iOS versions.

💡

If the bracelet isn't in the app, try rebooting your iPhone and re-enable Bluetooth. Sometimes reinstalling the Zepp Life app helps.

5. Notification setting and data synchronization

By default, the Mi Band 4 only shows call notifications and SMS. To receive notifications from messengers (WhatsApp, Telegram) and other applications, you need to configure them manually.

How to enable notifications:

1. Open Zepp Life and go to Profile → Mi Smart Band 4 → Notifications.
2. Activate the Notification Switch.
3. In the Applications section, select the alerts you want to see on your bracelet (for example, Viber, Instagram).
4. In the iPhone settings (Settings) → Notifications → Zepp Life) Enable Allow notifications and Show on the lock screen.

Notification restrictions on iOS:

• 📵 Mi Band 4 does not support answering messages from the bracelet (unlike Android).
• 🔕 Some applications (e.g, VK) Notifications may not be displayed due to Apple restrictions.
• 📞 For calls, the bracelet vibrates but cannot accept/reject a call (only on Android).

⚠️ Note: If notifications do not arrive, check:

1. Is Bluetooth on the iPhone?
2. Is the Zepp Life app blocked in Settings? → Screen time. → Content restrictions.
3. Is the bracelet firmware updated (older versions may not support notifications from iOS)

💡

For stable notifications keep the Zepp Life app open in the background. iOS often suspends background processes, which leads to the loss of alerts.

6. Solving common connection problems

Even with the right setup, there can be errors, and we've collected the most common problems and ways to fix them.

Problem 1: Bracelet is not in the application

• 🔋 Check the bracelet charge (at a level below 10% it does not include Bluetooth).
• 🔄 Reboot your iPhone and bracelet (hold the button on the charger for 10 seconds).
• 📱 Remove Zepp Life, reinstall and reconnect.
• 🌍 Make sure the bracelet is not Chinese (with the letter "C" in the model).

Problem 2: Connection is cut off in seconds

• 📶 Check if other Bluetooth devices (earphones, speakers) are interfering.
• 🔄 In the iPhone settings (Settings) → Bluetooth) Forget the Mi Band 4 and connect again.
• 📥 Update the bracelet firmware through Zepp Life.

Problem 3: Data is not synchronized (steps, sleep)

• 🔄 In the Zepp Life app, manually start sync (pull the screen down).
• 📱 Check if you have allowed the app to access Movement and fitness (Settings) → Confidentiality → Health).
• 🔋 If the bracelet is discharged to 0%, the first data after charging may not be saved.

Problem 4: The bracelet vibrates but doesn't show notifications

• 📵 Make sure notifications are enabled in Zepp Life and at the iOS level.
• 🔕 Check if the messenger app has been added to the blacklist in Zepp Life.
• 📞 For calls: the iPhone must be enabled Redirect calls (although the bracelet can not receive calls, this affects the alerts).

7. Alternative ways of connecting (if the standard one does not work)

If Zepp Life refuses to plug in the bracelet, you can try alternative methods, which are less stable, but sometimes help in desperate situations.

Method 1: Mi Fitness (old)

Method 2: Notify & Fitness for Mi Band

Method 3: Connecting via Android smartphone (temporary solution)

⚠️ Note: Using third-party apps can cause malfunctions in the bracelet. Xiaomi officially does not support them, so if you have problems, the warranty does not work.

8. Optimization of the Mi Band 4 with iPhone: tips and life hacks

To ensure that the bracelet works stably and as long as possible, follow these recommendations:

How to extend the life of the battery:

• 🔋 Turn off the permanent display of time (in bracelet settings).
• 📵 Reduce the data synchronization frequency in Zepp Life (e.g., once every 30 minutes instead of 5).
• 🚫 Disable notifications from unnecessary applications.

How to improve the accuracy of data:

• 🏃 For training, wear a bracelet 2-3 fingers above your wrist.
• 🛌 To track sleep, wear a bracelet on a non-mining hand (such as your left hand if you are right-handed).
• 📊 Once a week, sync your data manually by pulling the Zepp Life screen down.

Hidden features of Mi Band 4:

• 🔍 Phone search: the menu bracelet has a function Find Phone – when activated, the iPhone will begin to vibrate (even in silent mode).
• 🎵 Music management: you can switch tracks to your iPhone directly from the bracelet (works with Apple Music and Spotify).

💡

To accurately track your pulse during exercise, wear the bracelet tightly, but not squeezing your hand. The distance between the sensor and the skin should not exceed 1-2 mm.

FAQ: Frequent questions about connecting Mi Band 4 iPhone