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

Why sync Mi Band 4 with Xiaomi phone

Xiaomi’s Mi Band 4 fitness bracelet remains one of the most popular wearables due to its combination of affordable price, long service times and wide functionality. However, many users face difficulties when connecting a gadget to a smartphone for the first time — especially if both devices are released under the Xiaomi brand. In this article, we will examine not only the standard synchronization procedure, but also the nuances that arise when working with Redmi, POCO or Mi phones based on MIUI.

It is important to understand that the Mi Band 4 requires a mandatory connection to the smartphone to activate most functions: sleep tracking, call notifications, music control and even unlock the screen. Without synchronization, the bracelet turns into a regular pedometer with an alarm clock, and the connection process can vary depending on the version of the phone’s firmware, regional settings and even the bracelet model (Chinese or global version).

If you have previously used bracelets from other brands (for example, Huawei Band or Honor Band), be prepared for the fact that Xiaomi uses its own ecosystem of applications. It will not be possible to do with standard Android tools – you will need to install proprietary software. Next, we will analyze in detail each step, from preparing the phone to solving typical errors like “does not see the bracelet” or “constantly breaks the connection”.

Preparing Xiaomi Phone for Mi Band 4 Connection

Before you start syncing, make sure your smartphone meets the minimum requirements.The Mi Band 4 officially supports Android 5.0 and higher devices, but Android 7.0+ (or MIUI 10 and later) is recommended for stable operation.If your phone runs on an older version, notifications or data display issues may occur.

Pay particular attention to the following points:

• 📱 Update. MIUI to the latest version: go to Settings → The phone. → System Update: Outdated firmware often contains bugs in the Bluetooth module.
• 🔄 Reset your network settings (if you have previously had problems connecting other devices): → Wi-Fi and networking → Resetting network settings.
• 🛡️ Turn off power saving for Bluetooth: in Settings → Battery and productivity → Control battery consumption, find "Bluetooth" and install "No restrictions".
• 🌍 Check the region of the phone: if your Xiaomi is purchased in China, you may need to change the region to “Russia” or “Global” via Settings → Additionally. → Region.

You should also free up space in the phone’s memory in advance – the Mi Fit (or Zepp Life) app takes about 100 MB, plus space for cache and bracelet firmware updates. If the phone has less than 1 GB of free space, errors can occur when downloading data.

Installation and configuration of the Mi Fit (Zepp Life) application

The official Mi Band 4 management app is called Mi Fit, but since 2022 Xiaomi has been gradually moving users to a new platform, Zepp Life (formerly Amazfit).Both apps are compatible with a bracelet, but Zepp Life offers a more modern interface and additional health analysis features. We recommend using Zepp Life if your phone runs Android 8.0+.

Installation instructions:

1. Download the application from an official source: 📱 For Zepp Life: Google Play or AppGallery. 📱 For Mi Fit: Google Play (if Zepp Life doesn't support your region).

Xiaomi

Use the same account as you do on your phone to avoid data synchronization issues.

• 📍 Geolocation (for accurate tracking of activity).
• 📱 Notifications (to display calls and messages).
• 🔋 Auto-run (to make the application run in the background).

Download Zepp Life or Mi Fit|Registering a Xiaomi account|Turn on Bluetooth on your phone|Provide all permissions to the application|Charge the bracelet to 50% or more-->

After registration, the app will suggest adding a new device, and it is important to choose the right model:

• 🔍 If you have a Chinese version of the bracelet (without English on the menu), choose Mi Smart Band 4. NFC (Even if you don't have a module. NFC).
• 🔍 For the global version, choose Mi Smart Band 4.

💡

If the app doesn’t find the bracelet, try restarting your phone and resetting your Bluetooth settings to Settings → Connections → Bluetooth → Three dots (menu) → Reset settings.

Step-by-step instructions for connecting Mi Band 4

Now, let's get straight to synchronization, make sure that the bracelet is at least 30% charged (better 50%), as the process of connecting and updating the firmware can take up to 10 minutes.

1. Activate the bracelet: Press the Mi Band 4 touch button (under the screen) and hold it for 3-5 seconds until the pairing code appears. If the screen does not respond, plug the bracelet into charging for 10 minutes - sometimes a dead battery blocks activation.
2. Start a search in the app: In Zepp Life or Mi Fit, click Add Device → Bracelet → Mi Band 4. Start scanning. Make sure your phone is on Bluetooth and Geolocation (yes, you need it even for connectivity!).
3. Confirm pairing: When the bracelet appears on the list, click on it. The phone and bracelet will have a 4-digit code on their screen - make sure it matches and confirm the connection on both devices.
4. Update the firmware: Once connected, the app will prompt you to update the bracelet software. Do not interrupt the process, this can lead to the "bricking" of the device (the bracelet will stop turning on), wait for completion (usually 5-7 minutes) and do not leave the application.

If there is an error during the firmware update phase, try the following:

• 🔌 Connect the bracelet to charging and try again.
• 📶 Switch your phone to the mobile Internet (sometimes Wi-Fi blocks file downloads).
• 🔄 Reinstall the application and reconnect.

Configure notifications and basic functions

Once you've successfully connected, you need to customize the bracelet to suit your needs, and the basic functions that you need to activate right away are:

Pay special attention to the notification settings. By default, the Mi Band 4 only shows incoming calls, but you can add alerts from SMS, Viber, Instagram and other apps.

1. In the app, go to Profile → Notifications → Application Management.
2. Select the messengers from which you want to receive notifications.
3. In Android settings, allow Zepp Life or Mi Fit to access notifications: Settings → Apps → Zepp Life → Permissions → Notifications.

💡

To properly work notifications on Xiaomi phones, you need to disable battery optimization for the Zepp Life/Mi Fit application in Settings → Battery → Consumption Management.

Solving Typical Connection Problems

Even with the right instructions, Mi Band 4 users often encounter errors, and let’s look at the most common ones and how to fix them.

1.The bracelet does not find the phone (or vice versa)

If the Mi Band 4 is not listed in the list of available devices:

• 🔄 Reboot both devices (phone and bracelet).
• 📱 Remove the bracelet from the list of conjugate devices in the Bluetooth settings of the phone.
• 🛠️ Reset your bracelet settings: Press the touch button for 10 seconds until vibrations appear.
• 📲 Try another app (like Mi Band Master for advanced settings).

2. The connection is permanently broken

If the bracelet is periodically disconnected:

• 🔋 Turn off power saving for Bluetooth in Settings → Battery → Consumption management.
• 📶 Check the distance: Mi Band 4 is stable at a distance of up to 10 meters without obstacles.
• 🛡️ Update the bracelet firmware through the app.
• 📱 Reset Bluetooth cache on your phone: Settings → Annexes → Show it all. → Bluetooth → Warehouse → Clear the cache.

3.No notifications are coming.

If the bracelet does not vibrate when calling or texting:

• 🔔 Check notification settings in the Zepp Life app.
• 📵 Make sure the bracelet does not activate the "Do Not Disturb" mode (swipe down the bracelet screen).
• 🔕 Allow the app to access notifications in Android settings.
• 📱 Restart your phone – sometimes system notification services “hang up".

💡

If after updating the firmware bracelet stopped responding to touch, reset through the charger: connect the bracelet to charging, then press and hold the button for 20 seconds until the Mi logo appears.

Additional features of the Mi Band 4 with a Xiaomi phone

The Mi Band 4 paired with a Xiaomi phone offers access to a number of hidden features that many users are unaware of.

• 🎵 Music control: you can switch tracks from the bracelet, adjust volume and pause (works with Mi Music, Spotify, YouTube Music). → Music in the appendix.
• 🔍 Phone search: if the phone is lost, you can make it ring from the bracelet (even if it is silent). → Phone search.
• 🏃 Training with GPS: The bracelet can be used GPS phone to accurately track the route while jogging or cycling. → Training. → Settings → Source GPS.
• 🔒 Unlocking your phone: if you have Xiaomi MIUI 11+, The bracelet can unlock the screen without entering a password.Settings: Phone settings → Lock screen → Unlocking the Mi Band.

For owners of Xiaomi smartphones with NFC, another useful feature is a quick payment from the bracelet (if you have a version of the Mi Band 4 NFC).

1. Add a bank card to Mi Pay (the application must be downloaded beforehand).
2. In Zepp Life, go to Profile → Mi Band 4 → NFC → Payment.
3. Tie the card to the bracelet and follow the instructions of the bank.

Tips for extending the life of the Mi Band 4

The Mi Band 4 is known for its durability, but if used improperly, even it can fail prematurely. Here are some tips to help prolong the life of your bracelet:

• 🔋 Charging: Use only the original charging cable. Do not leave the bracelet on charging for more than 2 hours - this can damage the battery. The optimal charge level for storage is 40-60%.
• 💦 Waterproof: Bracelet has protection of 5 ATM, It allows you to swim with it in the pool, but it is not recommended to use it in hot water (bath, sauna) or under a strong stream (shower.
• 🛡️ Updates: Update your firmware regularly through the app. Newer versions often fix connection errors and increase uptime.
• 🧼 Clean: Wash the bracelet and strap with a soft wet cloth once a week. To clean the charging contacts, use a cotton swab soaked in alcohol.

If the bracelet starts to discharge quickly, check the following points:

• 🔍 Background notifications: Turn off unnecessary alerts in Profile → Notifications.
• 📊 Synchronization frequency: set automatic synchronization once every 1-2 hours instead of constant.
• 🌙 Screenlighting: Reduce display time to 5 seconds in bracelet settings.

💡

For maximum operating time, turn off the permanent pulsemeter in the bracelet settings. Measuring your heart rate every 5 minutes reduces autonomy by 30-40%.

FAQ: Frequent questions about connecting Mi Band 4