The Xiaomi Mi Band 4 fitness bracelet remains one of the most popular wearables thanks to its combination of affordable price, long-term autonomy and wide functionality. However, even with such a simple device, the process of first connecting to a smartphone can raise questions — especially if you encounter Xiaomi equipment for the first time. In this article, we will discuss not only the basic pairing procedure through the official Mi Fit application, but also the nuances of settings for different operating systems, solving typical errors, and hidden features of the bracelet that many users are unaware of.
It’s important to understand that the Mi Band 4 works with Android 5.0+ and iOS 10.0+ devices, but the stability of the connection depends on the version of the bracelet firmware and the mobile application. For example, owners of Android 13 smartphones may face synchronization problems due to new restrictions on background processes.
Preparation for connection: what to do before pairing
Before you start setting up, make sure that all the prerequisites are met, which will save you from most errors during the connection stage.
- 📱 Update your smartphone operating system to the latest version. On Android, check this in Settings → System system → Update on iPhone - in Settings → Mainstream → Update of the PO.
- 🔋 Charge the bracelet to at least 20%.At a charge level below 15%, the Mi Band 4 can shut down during synchronization.
- 📲 Remove old versions of Mi Fit or Zepp Life apps (formerly Amazfit) if they were installed earlier. Version conflict is a common cause of crashes.
- 🌐 Connect to a stable Wi-Fi network or mobile Internet. The application will need to download the bracelet firmware updates.
Critical point: if you have previously used the Mi Band 3 bracelet or another Xiaomi model, be sure to untie it in the Mi Fit application through Profile → My devices. Simultaneous connection of several gadgets of the same line can lead to Bluetooth connection conflict.
Also check if Bluetooth 4.0 is enabled on your smartphone or later (Settings → Connections or Settings → Bluetooth). The Mi Band 4 does not support legacy versions of the protocol, such as Bluetooth 2.1, which are still found on budget phones.
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Installation and configuration of the Mi Fit application
The official Mi Fit app is the only legal way to connect the Mi Band 4 to a smartphone. Alternative programs (such as Notify & Fitness or Mi Band Master) may offer advanced features, but often disrupt standard notifications and activity counters.
Download Mi Fit from official stores:
- 🤖 Google Play for Android
- 🍎 App Store for iOS
After installation:
- Open the application and select the language (Russian is available by default).
- Sign up or sign in via your Xiaomi, Google, Facebook or phone number. Without authorization, you can't connect the bracelet!
- Click Add the device (the + icon in the upper right corner).
- In the list, select a bracelet. → Mi Smart Band 4.
⚠️ Note: If the Mi Band 4 is not on the list of devices, upgrade the Mi Fit app to the latest version. older versions (up to 4.6.0) may not support this model.
Download Mi Fit from the official store | Register/log in to your account | Make sure the bracelet is charged | Turn on Bluetooth on your phone-->
Step-by-step instructions for pairing the bracelet
When the app is ready, we move on to the connection process itself. Follow the instructions carefully - at this stage, many users make mistakes, for example, trying to connect through the Bluetooth settings of the phone, rather than through Mi Fit.
Algorithm of action:
- Place the bracelet next to your smartphone (no more than 1 meter away).
- In the Mi Fit app, click Connect and wait until a 6-digit code appears on the bracelet screen.
- Compare the code on the bracelet and in the app. If they match, click Confirm.
- Wait until the synchronization is complete (it can take up to 2 minutes).
- After a successful connection, the app will offer to update the bracelet firmware – agree to avoid bugs in the future.
If the code on the bracelet does not appear:
- 🔄 Reboot the bracelet by holding the touch button for 10 seconds.
- 📱 Restart the Mi Fit app and try again.
- 🔌 Try another smartphone (if possible) – the problem may be in your phone’s Bluetooth module.
What if the bracelet is not visible in Mi Fit?
If the Mi Band 4 is not displayed in the list of available devices, check: 1. Bluetooth compatibility: phones with Qualcomm Snapdragon 4xx/6xx chips (e.g. Redmi 4A, Redmi Note 5) may have connection problems. Try connecting via another phone. 2. Conflict with other gadgets: disable other Bluetooth devices (headphones, speakers) for the duration of pairing. 3. Regional restrictions: in some countries (e.g. India) Xiaomi releases bracelets with modified firmware. If you bought the Fit device from abroad, you may need to upgrade to its basic features 4. Consider the key settings in the Mi Fit app: Where to set up Call Notification Recommendations Profile → Mi Smart Band 4 → Call notifications Enable the option and select the vibrating style. iOS will require additional permission in Settings → Notifications → Mi Fit. Alerts from applications Profile → Mi Smart Band 4 → Notification management Select only important messengers (e.g. WhatsApp, Telegram) so as not to overload the bracelet. on Android 12+ You may need a manual resolution for each application.Automatic sleep detection Profile → Mi Smart Band 4 → Son → Auto Tracking Include but calibrate the time of lifting/resting manually the first 3 days for accuracy. → Mi Smart Band 4 → Up to 10 alarm clocks can be set with different days of the week and vibration styles. Lock screen Profile → Mi Smart Band 4 → Lock screen Set up PIN-code (4 digits) so as not to accidentally reset the bracelet settings. ⚠️ Note: On iPhone notifications from third-party apps (for example, VK Or Instagram, they might not be coming to the wristband because of the limitations of iOS, not the Mi Band 4 bug, but Apple's background work, so the solution is to use official apps that support Apple Watch or check notifications on the phone. Even if you follow the instructions accurately, users encounter errors. We have collected typical scenarios and ways to fix them: 1. The bracelet does not find the phone (or vice versa: 🔌 Bluetooth is off – check your phone’s settings and turn it on. 📵 Flight mode - turn it off in the notification curtain. 🔄 Conflict with other devices – disable headphones, speakers, and other Bluetooth-connected gadgets. 🔋 Weak bracelet charge - charge up to 30% and try again. 2 Mi Fit app doesn't see bracelet in list of possible actions: 📥 Update Mi Fit to the latest version. 🗑️ Clear the app cache (Settings) → Annexes → Mi Fit → Memory. → Clear the cache). 📱 Reinstall Mi Fit by pre-untie the bracelet in your profile. 🌍 Change your account region to “Russia” or “Global” (in the Mi Fit profile settings). 3. Connection is constantly broken Frequent problem on phones with aggressive battery optimization (for example, Xiaomi, Huawei, Samsung: ⚡ Add Mi Fit to battery optimization exceptions. 🔄 Turn off Bluetooth automatic shutdown in phone settings. 📶 Check the stability of the Internet connection – the bracelet can lose communication with a weak signal. 💡If none of these methods worked, try resetting the bracelet to factory settings. To do this, find Settings in the Mi Band 4 menu. → Reset (you will need confirmation by pressing the touch button 3 times). After reset, repeat the connection procedure again. Additional features of Mi Band 4: what can be customized In addition to the basic features, Mi Band 4 supports a number of hidden or little-known options that make it even more useful: 🎵 Music control: you can switch tracks and adjust volume directly from the bracelet (setting in Mi Fit) → Music. Works with Spotify, YouTube Music and the standard player. 🔦 Phone search: if the smartphone is lost, click on the phone icon in the bracelet menu - the device will emit a loud signal. 🏃 Exercise modes: in addition to walking and running, the bracelet supports cycling, swimming (with water resistance 5) ATM), elliptical trainer and even yoga. 🌙 Night mode: turns off the screen light at a given time so as not to interfere with sleep. 💧 Water reminder: The bracelet will vibrate if you haven’t drunk water for a long time (configurable in Mi Fit) → Reminders: How to turn on the weather display on Mi Band 4? To see the weather on the bracelet screen: 1. In Mi Fit, go to Profile → Mi Smart Band 4 → Weather. 2. Enable the Weather on Screen option. 3. Select the data source (default AccuWeather). 4. On the bracelet, swipe right across the home screen, a temperature and forecast widget will appear. Important: to work correctly, you need to allow Mi Fit access to geolocation. Compatibility with other Mi Band 4 apps and services can be integrated not only with Mi Fit, but also with popular fitness services, which allows you to synchronize training, sleep and heart rate data with other platforms. Supported services: 🏃 Google Fit: synchronize steps, calories and workouts. Setup in Mi Fit → Settings → Integration with Google Fit. 🍎 Apple Health: iPhone data is automatically transferred to the standard Health app». 🌍 Strava: to synchronize training you will need to connect an account in Mi Fit → Settings → Strava. 📊 MyFitnessPal: transferring data on calories and activity (setting similar to Google Fit). ⚠️ Note: When synchronized with Google Fit or Apple Health, step data may be duplicated. To avoid this, in the integration settings, turn off the transfer of steps from Mi Fit to third-party services if they are already being recorded by another device (for example, a smartphone). FAQ: Frequent questions about connecting Mi Band 4 Can you connect Mi Band 4 to two phones at the same time? No, the bracelet supports pairing with only one device. If you want to reconnect it to another smartphone, untie the Mi Band 4 in the Mi Fit app on the first phone first (Profile) → My devices. → Why does the bracelet vibrate for no reason? You probably have sedentary reminders, alarms or notifications from apps. Check the settings in Mi Fit → Notifications and Mi Fit → Reminders: Also, vibration can mean low battery charge (less than 10%). How to reset Mi Band 4 if it doesn't connect? For a full reset: 1. Charge the bracelet to at least 50%. 2. On the home screen, swipe right to More (or More. 3. Find Settings → 4. Confirm the action by pressing the touch button. Once reset, the bracelet will return to the factory settings, and it can be reconnected. Does the Mi Band 4 work with the iPhone? Yes, the bracelet is fully compatible with the iPhone on iOS 10.0 and later. However, there are limitations: - No notification support from some third-party apps (due to Apple's policy). - Data sync can take longer than Android. - Phone Search only works one way (bracelet can find phone, but not the other way around). How to update firmware to Mi Band 4? Update is automatic via Mi Fit, but you can start it manually: 1. Connect the bracelet to your phone. 2. Open Mi Fit and go to Profile → Mi Smart Band 4. 3. If an update is available, a notification will appear with the Update button. 4. The update is important: 50% at the end of the process.