Connecting Xiaomi Mi Band 3 to a New Smartphone: A Complete Guide to Problem Solutions

The switch to a new smartphone is always accompanied by the need to reconfigure gadgets — and the Xiaomi Mi Band 3 is no exception. This fitness bracelet, released in 2018, is still popular due to its functionality and availability. However, connecting a device to a new phone can cause difficulties, from the lack of a bracelet in the list of available devices to data synchronization errors. In this article, we will discuss all the stages of connection, from smartphone preparation to solving typical problems, including the nuances of working with Android 13/14 and iOS 16/17.

The Mi Band 3 feature is an outdated version of the Bluetooth protocol (4.2 BLE), which sometimes leads to conflicts with modern OSes. In addition, since 2023, the official Mi Fit application has been replaced with Mi Fitness, and older versions have ceased to be supported. This means that the instructions that are current 2-3 years ago may not work today. We took into account all the changes and prepared an updated guide that will help you connect the bracelet regardless of the model of your new phone – whether it is Xiaomi Redmi Note 12, Samsung Galaxy S23 or iPhone 15.

1. Preparation of the smartphone and bracelet for connection

Before syncing, make sure both devices are ready to go. On the side of the smartphone, you need to:

• 📱 Update the operating system to the latest stable version (for Android - not lower than 8.0, for iOS - not lower than 12.0).
• 🔄 Disable Power Saving Mode – It Can Block Background Bluetooth.
• 🛡️ Temporarily shut down VPN/Antivirus, if any, they sometimes block the connection to Xiaomi servers.
• 📲 Remove old versions of Mi Fit/Mi Fitness, if it was previously installed (the data is not lost – it is stored in the cloud).

From the side of the Mi Band 3 bracelet:

• 🔋 Charge the device to at least 30% – with a low charge, the bracelet may not appear in the list of available devices.
• 🔄 Reset if the bracelet has already been paired with another phone. To do this, press the touch button for 10-15 seconds before the vibration appears.
• 📶 Make sure the bracelet is on – the screen should display a Bluetooth icon or the words “Pair".

⚠️ Note: If you switch from Android to iPhone (or vice versa), your steps, sleep and workout data won’t be automatically transferred. → Export of data in the old annex.

2. Installation and configuration of the Mi Fitness application

Since 2023, Xiaomi has completely switched from Mi Fit to Mi Fitness, a new application with an updated interface and advanced features. However, for the Mi Band 3, some of the features have been limited due to hardware limitations of the device.

• 🤖 For Android: Mi Fitness on Google Play (version 5.6.0 or later).
• 🍎 For iOS: Mi Fitness in the App Store (version 5.5.0 or later).

After installation:

1. Open the app and select Register (if you already have a Xiaomi account, sign in through it).
2. In the Profile menu → Settings → Install Russia (or another country where Mi Band 3 is supported).
3. Enable all permissions: Location, Notifications, Bluetooth, and Auto Run (on Android).

If the app requests access to Phone or Contacts, allow it, and this is necessary for the correct operation of call notifications and SMS.

3. Step-by-step instructions for connecting Mi Band 3

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

Step 1. Open Mi Fitness and click Add Device (+ icon in upper right corner).

Step 2. Select the Bracelet → Mi Smart Band 3 from the device list. If it is not available, update the app or check the region.

Step 3. Press Connect and wait until the bracelet appears in the list of available devices (can take up to 30 seconds).

Step 4: Confirm the pairing on your phone and bracelet (a tick will appear on the Mi Band 3 screen – tap it).

Step 5: Once you've successfully connected, the app will suggest you update the bracelet firmware. Don't refuse, it will fix any bugs and add compatibility with the new OS.

⚠️ Note: If you use an iPhone, go to Settings after you connect. → Bluetooth and manually confirm pairing with Mi Band 3. Android does not require this step.

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If the bracelet doesn't connect the first time, try rebooting your smartphone and resetting the Mi Band 3 settings (press the button for 15 seconds), which solves 80% of sync problems.

4. Set up notifications and basic functions

After the successful connection, we will customize the bracelet to suit your needs. The main parameters are in the Profile → Mi Smart Band 3 section.

Notifications:

• 📞 Calls: Enable Call Notifications and select Vibration Style.
• 💬 Messages: Add messengers to Notification Management (WhatsApp, Telegram, etc.).
• 🔕 Exceptions: Do not disturb setting a time when the bracelet will not vibrate (e.g. at night).

Fitness functions:

• 🏃 Stepmer: Calibrate the bracelet once a month through Settings → Calibration of steps.
• 💤 Sleep: Turn on Sleep Monitoring and set a goal (recommended 7-9 hours).
• ❤️ Pulse: activate Continuous monitoring of heart rate (reduces the time without recharging).

To save charge, turn off unnecessary functions:

• 🌡️ Weather (if you don't use it).
• 🔔 Alarms on the bracelet (if you use your phone).
• 📊 Autosynchronization of data (sufficient 1-2 times a day).

5. Solving common problems

Even after a successful connection, users are faced with bugs. Let's look at typical scenarios and their solutions.

Problem 1: The bracelet shuts down after a few minutes.

Reason: Android/iOS energy saving blocks Bluetooth background work.

• 🤖 On Android: Add Mi Fitness to Battery Optimization Exceptions (Settings) → Battery → Optimizing the battery → All applications → Mi Fitness → Not optimize).
• 🍎 On iOS: Enable Background App Update for Mi Fitness (Settings) → Mainstream → Background update).

Problem 2: The steps or sleep data are not synchronized.

Reason: Time zone conflict or cache failure.

• Check that the phone and bracelet have automatic timing.
• In Mi Fitness, go to Profile → Mi Smart Band 3 → Sync your data and wait until it’s done.
• If it does not help, remove the bracelet from the application and connect again.

Problem 3: The bracelet does not vibrate when notified.

Reason: Notification settings went wrong after the OS update.

• On Android: Check that in Settings → Applications → Mi Fitness → Notifications all permissions are enabled.
• On iOS: Go to Settings → Notifications → Mi Fitness and activate Sounds and Badges.
• On the bracelet itself: In Settings → Notifications, turn on vibration.

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If the bracelet doesn’t work after all the manipulations, try connecting it to another phone. If the problem persists, it’s a hardware failure (for example, a faulty Bluetooth module in the bracelet).

6. Data transfer from the old phone

When changing your smartphone, many users want to keep a history of activity. Unfortunately, Xiaomi does not provide a direct tool for transferring data between accounts, but there are workarounds:

Method 1: Export through Mi Fitness (Android)

1. On your old phone, open Mi Fitness and go to Profile → Settings → Export data.
2. Select period (e.g., “Last Year”) and format (CSV or JSON).
3. Send the file to your mail or messenger.
4. On a new phone, import data through Profile → Settings → Data Import.

Method 2: Sync with Google Fit (Android) or Apple Health (iOS).

• On an old phone, connect Mi Fitness to Google Fit (Profile → Settings → Connect Google Fit).
• On the new phone, log in to the same Google account and allow Mi Fitness to access the data.
• Similarly for iOS: Use Apple Health in your Mi Fitness settings.

⚠️ Note: When you transfer data through third-party services (Google Fit, Apple Health), detailed metrics such as pulse charts by minute or sleep phase may be lost.

7. Optimizing the bracelet to save battery

The Mi Band 3 can hold a charge for 7-10 days when used, but with the right settings, this time can be extended to 14-20 days.

Additional advice:

• 🔋 Use the original charging cable – unoriginal can damage your contacts.
• 🌡️ Avoid overheating or hypothermia of the bracelet (optimal temperature: 0–40)°C).
• 🔄 Once a month, reset your bracelet settings – this clears the cache and eliminates small bugs.

8.Alternative applications for Mi Band 3

If Mi Fitness is unstable, you can use third-party apps, which often offer advanced features, but may lose official support.

Top.-3 alternatives:

• 📊 Notify & Fitness for Mi Band (Android) – supports custom dials and notifications from any application.
• 🍎 Mi Band Master (iOS) – an alternative for iPhone users with advanced sleep settings.
• 🔧 Tools & Mi Band (Android) – allows you to adjust vibrations, alarms and export data to Excel.

Warnings when using third-party applications:

• ⚠️ They can reset the bracelet settings when you first connect.
• ⚠️ Some features (such as firmware updates) only work through Mi Fitness.
• ⚠️ Risk of data loss when switching between applications.

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Third-party apps are useful for advanced settings, but for stable work it is better to use the official Mi Fitness. Alternatives will suit advanced users ready for experimentation.

FAQ: Frequent questions about connecting Mi Band 3