Connecting Xiaomi Mi Band 4C to a smartphone: full instructions with nuances

Xiaomi Mi Band 4C — It's a budget fitness tracker with basic activity monitoring features that is still in demand today because of its simplicity and reliability, but many users have difficulty connecting the device to their phone for the first time, unlike the newer models (Mi Band 6 or Mi Band 7), 4C-The version requires a special approach due to limited compatibility with the latest versions of the Mi Fitness app.

In this article, you will find the latest pairing instructions (including workarounds for problem cases), the comparison of Android and iOS connectivity methods, and answers to frequent questions. We have taken into account all the nuances from choosing the right version of the application to resetting the bracelet if you have just unpacked the Mi Band 4C or are trying to reconnect it after a reset, this guide will help avoid typical errors.

What you need to connect

Before you start the process, make sure you have everything you need. Xiaomi Mi Band 4C is compatible with most smartphones, but there are critical conditions:

• 📱 Smartphone on Android 5.0+ or iOS 10.0+ (iPhone requires Bluetooth 4.0)
• 🔋 Bracelet charge at least 20% (at low charge connection may be interrupted)
• 📲 Mi Fitness (not to be confused with Zepp Life or Mi Band) 4C)
• 🔄 Bluetooth enabled and geolocation permission (mandatory for Android 12)+)

Pay special attention to the app version. Only Mi Fitness versions 4.6.0-5.2.1 are suitable for the Mi Band 4C - new releases (6.0+) may not recognize the device. If only the current version is available in your region, you will have to download APK manually (links to verified sources will be provided below).

Step-by-step: Connecting to Android

The Android pairing process consists of 5 key steps, followed in strict order to avoid errors such as "Device failed" or "Connection interrupted".

1. Download the app from Google Play or (if you need the older version) from APKCombo. Make sure you turn off automatic updates in your Google Play settings.
2. Start Mi Fitness and create an account (or log in through an existing one). Use the same region as when buying a wristband - for example, if the device is designed for China, choose China Mainland.

Search and pairing of the bracelet

In the app, go to Profile → Add Device → Bracelet → Mi Smart Band 4C. Press the button on the bracelet before vibration (it should flash white). The phone will start searching - wait for the Mi Band 4C to appear in the list and tap on it.

Update of firmware (if necessary)

Once connected, the app will prompt you to update the firmware. Don't interrupt the process, this can lead to the bracelet "bricking"; if the update is hanging, restart the phone and bracelet (press the button for 10 seconds).

Mi Fitness version 4.6.0-5.2.1 installed

Bracelet charged at least 20%

Bluetooth and geolocation included

Xiaomi account is registered (region coincides with bracelet)

Permits for Mi Fitness issued manually-->

If the bracelet is not present, try:

• 🔄 Reboot the Mi Band 4C (press the button 10 seconds before vibration).
• 📱 Remove the cache of the Mi Fitness app in the phone settings.
• 🔌 Connect the bracelet to another phone (to check the performance).

💡

If you have Android 13+, turn off the “Limit Bluetooth usage to save power” feature in your battery settings before connecting.

Connection to iPhone (iOS): features and limitations

The Mi Band 4C pairing with the iPhone is possible, but has a number of limitations:

Instructions for iOS:

1. Download Mi Fitness from the App Store.
2. Register a Xiaomi account (use China Mainland if the bracelet is Chinese).
3. Enable Bluetooth and Geolocation Services for Mi Fitness (Settings → Privacy → Geolocation Services).
4. In the app, select Add Device → Mi Smart Band 4C.
5. Press the button on the bracelet before vibration. If the device is not located, restart the bracelet and try again.

⚠️ Attention: On iOS 16+ Mi Band 4C It can display notifications with a delay of up to 5 minutes. This is a system limitation, not a bracelet. To reduce lag, turn off the background update optimization for Mi Fitness in the iPhone settings.

Common mistakes and their solution

Even if you follow the instructions correctly, users are faced with errors.-5 problems and ways of eliminating them:

• 🔴 "Unable to connect. Try again" Reason: Conflict with other Bluetooth devices (earphones, speakers). Solution: Disable all other Bluetooth devices and restart your phone.
• 🔴 Bracelet does not vibrate when searching Reason: Battery discharged or mechanical button lock.Solution: Charge the bracelet for 30 minutes and check the stick button.
• 🔴 The app does not see the bracelet after the update Reason: the new version of Mi Fitness does not support 4C. Solution: Retreat to version 4.6.0-5.2.1 (APK available on APKCombo).
• 🔴 Continuous communication gaps Cause: Energy saving Android/iOS restricts background work to Mi Fitness Solution: Add the app to battery optimization exceptions.
• 🔴 No notifications are coming Reason: Notification permissions are not given or Contact with other apps (e.g. Notification Bridge) Solution: Reinstall Mi Fitness and reissue all permissions.

Setup of the bracelet after connecting

After successful pairing, it is recommended to personalize the main parameters:

1. Indicate in Mi Fitness your gender, age, weight and height – this is necessary for the correct calculation of calories and steps.
2. Notifications In the bracelet menu (Device profile) → Notifications) select which alerts will be duplicated on the screen: 📞 Incoming calls 💬 SMS and messengers (WhatsApp, Telegram, etc.) 🔔 Alarm clocks and reminders
3. Screen and brightness Set up: 🌓 Auto-lighting (or fixed brightness) ⏱ Screen display time (5-15 seconds) 🔄 Automatic locking when removed from hand

Activity targets

Set daily goals by steps (recommended value is 8000-10000) and activity time.

⚠️ Note: If you are using Mi Band 4C For sleep, turn off night notifications in the bracelet settings. Otherwise, the vibration from the alerts will wake you up.

💡

For maximum autonomy (up to 14 days), turn off constant data synchronization in the background. It is enough to update the statistics 1-2 times a day manually.

Resetting the bracelet to factory settings

If you sell a bracelet or it's unstable, do a hard reset, which will delete all the data and break the connection to the account.

Method 1: Through the application

1. Open Mi Fitness and go to Profile → Mi Smart Band 4C → Device Settings.
2. Select Untie the device.
3. Confirm the action and wait for the vibration of the bracelet.

Method 2: Hardware reset

1. Disconnect the bracelet from your phone in Bluetooth settings.
2. Charge the device at least 50%.
3. Press the button for 20 seconds until you feel a triple vibration.
4. The bracelet will reset and be ready for a new connection.

After resetting, all settings will reset, including:

• 👤 A Linked Xiaomi Account
• ⏰ Alarm clocks and reminders
• 📊 Activity statistics (only stored in the cloud if synchronized)

Compatibility with other applications

The Mi Band 4C officially only works with Mi Fitness, but there are workarounds to integrate with third-party services:

To sync with Google Fit:

1. Open Mi Fitness and go to Profile → Settings → Accounts.
2. Select Google Fit and log in.
3. Allow access to activity data.

⚠️ Note: When using third-party apps (such as Notify & Fitness), disable notifications primarily Mi Fitness to avoid duplication of alerts.

FAQ: Frequent questions about Mi Band 4C