Transfer Xiaomi Mi Band 4 to another phone: full instructions with data saving

Why does Mi Band 4 not want to connect to a new phone?

The switch to a new smartphone is always accompanied by the need to reconfigure gadgets — and Xiaomi Mi Band 4 is no exception, many users are faced with the fact that the fitness bracelet refuses to sync with the new device, gives errors like “failed to connect” or does not appear in the list of available Bluetooth devices, the reasons are rooted in three key points:

First, the bracelet remains tied to the old phone at the profile level in the Mi Fit app (or Zepp Life for new versions). Second, the Bluetooth cache on the new smartphone can block device detection. Third, the Mi Band 4 requires you to reset the settings before transferring to another phone - otherwise it will simply ignore connection attempts. Next, we will analyze each connection step to avoid typical errors.

It’s important to understand that the process is different from the standard connection of a new bracelet, which includes the nuances of working with an already activated device, saving activity history and correctly logging into your Xiaomi account. If you just delete the application from your old phone, the bracelet may lock!

Preparation: What to do before connecting to a new phone

Before you try to connect the Mi Band 4 to a new smartphone, follow the mandatory preparatory steps, which will lead to loss of data or inability to sync.

• 📱 Install the current version of the application: download Mi Fit (for the first time). Android/iOS) or Zepp Life (if you use the new bracelet firmware) from official stores. 4.6.0 may not support the transfer of the device.
• 🔄 Log in to the same Xiaomi account as your old phone, and using a different profile will result in a reset of all the bracelet data.
• 📡 Check Bluetooth compatibility: Mi Band 4 requires Bluetooth 4.2 or later. On Android, you can check this in Settings → The phone. → Bluetooth version.
• 🔋 Charge the bracelet to at least 50%. At low charge, the synchronization process may be interrupted during the firmware update stage.

If you plan to save your workout history and sleep data, don’t remove the app from your old phone until the transfer is complete, otherwise the information from the last 30 days will be lost, as the bracelet stores a limited amount of data in its memory.

Step 1: Untie the bracelet from the old phone

The most common mistake is trying to connect the Mi Band 4 to a new smartphone without first detaching, remembering the last paired device and blocking the connection to other gadgets. To avoid problems, follow the following steps on your old phone:

1. Open the Mi Fit or Zepp Life app.
2. Go to the Profile section → My devices.
3. Select Mi Band 4 from the list.
4. Press three points (⋮) in the upper right corner and select "Delete device".
5. Confirm the action - the bracelet vibrates, signaling the uncoupling.

If the old phone is not available (for example, it is broken or lost), you will have to do a hardware reset of the bracelet.

1. Disconnect the bracelet capsule from the strap.
2. Connect it to the charger.
3. Press and hold the touch button for 10 seconds until the vibration and the Mi logo appear.

Step 2: Reset your Mi Band 4 settings (if required)

If the bracelet has been untied through the app before, the reset is not necessary, but in three cases it is necessary:

• 🔄 The bracelet has never untied from an old phone before.
• 🚫 The Mi Band 4 screen displays the lock icon (🔒).
• ⚠️ When you try to connect, an error appears: "The device is already tethered".

For discharge, do:

1. Open the swipe menu on the bracelet up from the main screen.
2. Go to Settings → More → Reset (on some firmwares, the path may differ: Settings → System → Reset).
3. Confirm the action by clicking on the tick (✓). The bracelet will reset.

⚠️ Note: after the reset, all local bracelet data (steps, pulse, alarm settings) will be deleted.

If the reset via the menu does not work (for example, due to outdated firmware), use an alternative method:

1. Connect the bracelet to the charger.


2 Press and hold the touch button for 15 seconds until the screen blinks.




3. Release the button, reset complete.

Step 3: Connect to a new phone via Mi Fit or Zepp Life

Now, the main step is to pair the bracelet with a new smartphone, and the instructions are relevant for both applications (Mi Fit and Zepp Life), the differences are only in the interface.

1. Turn on Bluetooth on your new phone and make sure it’s visible for other devices (Settings → Bluetooth → Visibility).
2. Launch Mi Fit/Zepp Life and log in to the same Xiaomi account you used before.
3. Press "+" or "Add device" in the upper right corner.
4. Select Mi Band 4 from the list (if not, update the app).
5. Follow the instructions on the screen: confirm the pairing on the phone and bracelet (it will be a connection request – touch the touch button).

If the bracelet is not detected:

• 🔄 Reboot Bluetooth on your phone (turn off/on in settings).
• 📱 Make sure there are no active phones on the phone. VPN or firewalls blocking the connection.
• 🔋 Check the bracelet’s charge – at levels below 20%, it may not appear in the list of devices.

💡

If the bracelet is connected but does not sync data, try manually updating the firmware: go to the Device Profile → Settings → Software Update and wait for the process to complete (it can take up to 10 minutes).

Synchronization of data: how to transfer the history of activity

After successfully connecting the Mi Band 4 to a new phone, you will need to transfer historical data (steps, sleep, training).

1. data is stored in the Xiaomi cloud (if the old phone was connected to the Internet and synced):

• 📱 Open Mi Fit on your new phone.
• 🔄 Wait for automatic synchronization (can take up to 5 minutes).
• 📊 Check the "Activity" section - the data should be displayed.

2.The data was stored only on the old phone (no cloud synchronization):

• 📲 Install Mi Fit on your old phone and export data manually through Settings → Export of data (file will be in.zip format).
• 📧 Transfer the file to a new phone and import it through Settings → Data Imports in Mi Fit.

⚠️ Note: Xiaomi only stores data in the cloud for 30 days. If more than a month has passed since the last sync, the activity history will be lost.

For reliability, we recommend:

• 🔄 Enable automatic synchronization in Mi Fit settings (Profile) → Settings → Synchronization of data).
• 📊 Regularly check the Cloud section of the app – it displays the status of the last synchronization.

Configure notifications and additional functions

After transferring the bracelet to the new phone, you will need to reconfigure notifications, alarms and other functions.

1. Allow notifications for Mi Fit: On Android: Settings → Applications → Mi Fit → Notifications → Allow. On iOS: Settings → Notifications → Mi Fit → Enable.
2. Configure notifications on the bracelet: In Mi Fit, go to Device Profile → Notifications. Select applications that will duplicate notifications on Mi Band 4 (e.g. WhatsApp, Phone, SMS).

Activate alarms and reminders

• In the Alarms section, add the necessary signals.
• Enable a "No Action Reminder" if required.