Xiaomi Mi Band 4 transfer to another phone: full instructions with solutions to typical problems

Why transferring the bracelet to a new phone can be difficult

The Xiaomi Mi Band 4 fitness bracelet remains one of the most popular gadgets for monitoring activity despite the release of new models, its main advantages are reliability, long battery life and compatibility with most Android and iOS smartphones. However, when trying to connect the bracelet to another phone, users often face problems from synchronization errors to loss of training data.

The main reason for the difficulties lies in the binding of the device to the Xiaomi account (or Zepp in new versions of the application). The bracelet remembers the last connected phone, and without the correct reset, the new device may not see the gadget. In addition, differences in the versions of the firmware of the bracelet and the application on the old / new phone sometimes lead to conflicts. In this article, we will discuss three key steps: uncoupling the old smartphone, resetting the bracelet and setting up on the new device, taking into account all the nuances.

We will pay special attention to solutions for cases where:

  • 📱 Old phone lost or broken (no access to app)
  • 🔄 The bracelet is not defined by a new smartphone via Bluetooth
  • 🔋 After the connection, the data is not synchronized (steps, pulse, sleep)
  • 📲 Mi Fit or Zepp Life gives an error: Device is already tethered"

Step 1: Untie the bracelet from the old phone

Before you connect the Mi Band 4 to a new device, you need to remove it from the application on the old smartphone correctly, which will prevent conflicts when re-associating. If you miss this step, the new phone may not see the bracelet or require a complete reset of the gadget with loss of data.

Instructions for Mi Fit (relevant to versions 4.6.0 and later):

  1. Open Mi Fit and go to Profile → My Devices.
  2. Select Mi Smart Band 4 from the list of connected gadgets.
  3. Press three points (⋮) in the upper right corner and select Remove the device.
  4. Confirm the action - the bracelet will be untied from the account.

For the Zepp Life app (formerly Amazfit):

  • 🔹 Go to Profile. → My devices.
  • 🔹 Slip on the bracelet icon and select Disable.
  • 🔹 In the window that appears, click Confirm.

⚠️ Warning: If your old phone is unavailable (lost, broken), skip this step and reset the bracelet immediately.However, please note that without detachment from the app on the new device, you may need to re-authorize your Xiaomi account.

📊 What app are you using for Mi Band 4?
Mi Fit
Zepp Life
Other
I don't know.

Step 2: Reset the Mi Band 4 settings to factory

If the bracelet was previously tied to another phone, it must be reset.This will delete all data about the previous device and allow you to perform a new binding.The reset procedure on the Mi Band 4 is different from newer models (for example, the Mi Band 5/6), so follow the instructions accurately.

Method 1: Through the bracelet menu (if the screen responds to touch):

  1. On the bracelet, swipe your finger up from the main screen to open the menu.
  2. Select the Settings (cog icon).
  3. Scroll down to Reset Settings (or Reset in English version).
  4. Confirm the action by clicking on the tick - the bracelet will reboot.

Method 2: Hardware reset (if the screen is not responding):

  • 🔌 Connect the bracelet to charging.
  • 🔄 Hold the touch button under the screen for 15-20 seconds until the Mi logo appears.
  • 📱 Release the button – the bracelet will reset and reboot.
Problem with dischargePossible causeDecision
The bracelet doesn't respond to touch.Battery discharged or screen damagedCharge 30+ minutes, then repeat the hardware reset
After resetting, the bracelet does not turn on.Critical discharge or firmware failureConnect to charging for 1-2 hours, if it does not help - you need firmware
Reset is interrupted on the Mi logoData conflict or damaged firmwareRepeat the reset 2-3 times, if it does not help – update the firmware through Mi Fit

⚠️ Warning: After resetting, all data on the bracelet (steps, sleep history, alarm clocks) will be deleted. If you care about statistics, export it from the Mi Fit app on your old phone before unsetting. → Export of data.

Reset the bracelet to factory settings|Install the Mi app Fit/Zepp Life|Log in to the same Xiaomi account as on your old phone|Enable Bluetooth and geolocation on the new smartphone|Charge the bracelet to minimum 50%-->

Step 3: Install and configure the app on your new phone

To connect the Mi Band 4 to the new smartphone will require an official application, and there are two options available:

  • 📌 Mi Fit – a classic application from Xiaomi, supports all the functions of the bracelet, but has an outdated interface.

If you want stability and all the features of the bracelet, use Mi Fit. If you prefer a beautiful interface and detailed statistics, Zepp Life. Both apps are compatible with Mi Band 4, but Zepp Life may not support some widgets (for example, weather).

Installation instructions:

  1. Download the application from the official store: 🤖 Mi Fit for Android 🍎 Mi Fit for iOS 🤖/🍎 Zepp Life (available on both platforms)

Xiaomi

create a new one

Bluetooth

geolocation

notice

fitness-data

Android 10+

Add the device

Mi Smart Band 4

What to do if the app does not see the bracelet?
1. Make sure Bluetooth is on the phone and the bracelet is charged (at least 20%). 2. Reboot both devices. 3. In the phone's Bluetooth settings, remove all previously saved devices called "MI Band" or "Mi Smart Band." 4. Try connecting via another application (e.g., if Mi Fit doesn't work, try Zepp Life). 5. If the bracelet is still not detected, reset again and try again after 5 minutes (sometimes take time to "clean" the Bluetooth cache).

Step 4: Connecting the bracelet to a new phone

Once you install the app and reset the bracelet, you can start synchronizing, which usually takes 2-5 minutes, but can take a while if you have errors, and let's look at the step-by-step instructions and the typical problems.

Step-by-step:

  1. Open the app (Mi Fit or Zepp Life) and click Add Device (or "+" in the upper right corner).
  2. Select Mi Smart Band 4 from the list of supported devices.
  3. Press Connect and wait for the phone to find the bracelet. It can take up to 30 seconds.
  4. When the bracelet appears on the list, tap it. The bracelet will have a 4-digit code on its screen, and you can confirm it in the app.
  5. Wait for the synchronization to be completed (progress will be displayed in the app).
  6. Set up the main parameters: time zone, units of measurement (km/miles, kg/pounds), goals by steps.
How to reset statistics on the bracelet?
If you need to reset your steps, calories, or activity time (for example, after resetting your bracelet), do this: 1. Open the Mi Fit app and go to Profile → My Achievements. 2. Click the calendar icon in the upper right corner. 3. Select the date you want to reset the statistics and click Reset the data. 4. Confirm the action. Attention: This operation will delete the data without recovery!

Create a new Xiaomi account (if you don’t have an old one)

If you do not have a Xiaomi account that the bracelet was linked to, or if you want to use a new account, follow this instruction. Please note that when you change your account, all data about previous activity will be lost (if it was not exported).

How to register a Xiaomi account:

  1. Open the Mi Fit or Zepp Life app and click Login.
  2. Select Register and provide a valid email or phone number.
  3. Create a strong password (at least 8 characters, with numbers and letters).
  4. Confirm registration via email or SMS.
  5. Log in to a new account and reconnect the bracelet.

What if the bracelet is linked to another account?

If Mi Band 4 was linked to an account you lost, follow these steps:

  • 🔄 Reset the bracelet to factory settings (see Step 2).
  • 📱 Install the app on your new phone and sign in to a new account.
  • 🔑 When you connect the bracelet, the system can request confirmation through the old account:

FAQ: Frequently Asked Questions

Can I connect Mi Band 4 to two phones at the same time?
No, the bracelet only supports a single device, so if you connect it to a new phone, the old phone will automatically be broken, but the data will be synchronized with your Xiaomi account, so you can view the statistics from any device that you log in to.
Why is the data history (sleep, steps) not shown after connecting to a new phone?
The activity history is stored in the Xiaomi account, not on the bracelet. If you are logged in to the same account as the old phone, the data should be downloaded automatically within 5-10 minutes. If this does not happen: Check your Internet connection. Update the data in the application (pull the screen down). Make sure that the account settings are synchronized (Profile → Account settings → Data Synchronization). If you use a new account, the history will not transfer, the bracelet will start collecting data from scratch.
How to move alarms and reminders from your old phone?
Alarm clocks and reminders don't sync between devices automatically. To move them: On an old phone, open Mi Fit and go to Profile → Alarm clocks. Take pictures or record the time and days of repetition for each alarm clock. On a new phone in the same section, add alarm clocks manually. Alternatively, export settings through third-party apps (like Mi Band Master) if they support your bracelet model.
The bracelet is plugged in, but it doesn't vibrate when you're notified.
Check the following settings: 🔕 In the Mi Fit app, go to the Device Profile → Notifications and make sure the option is enabled. 📱 In the phone settings for Mi Fit, allow notifications (Settings) → Annexes → Mi Fit → Notifications). 🔊 On the bracelet, check if the "Do Not Disturb" mode is activated (swipe up the screen and find the bell icon with cross-outs). 🔄 Reset the bracelet (hold the 10 seconds button). If the vibration doesn't work, try resetting the bracelet and reconnecting it.
Can I use Mi Band 4 without a smartphone?
The bracelet can work autonomously, but with limited functionality: 🏃 Step and calorie counter. ⏱️ Timer and stopwatch. 🌙 Sleep monitoring (data will be stored in the memory of the bracelet). 🔔 However, to set up notifications, update firmware or view detailed statistics, you will need a smartphone, the steps and sleep data will be stored in the wristband memory for up to 7 days, after which they will start to be rewritten.