How to connect Xiaomi Mi Band 4 to your Android phone: a complete guide with photos and tips

The Xiaomi Mi Band 4 fitness bracelet remains one of the most popular activity-tracking gadgets, despite the release of new models, with its main advantages being affordable, long battery life and wide functionality from step count to sleep monitoring. But before you use it, you need to connect the bracelet correctly to your smartphone. This procedure seems simple, but beginners often have questions: which app to download, how to turn on Bluetooth, why the device does not find the bracelet or suddenly shuts down.

In this article, you will find detailed instructions on how to connect the Mi Band 4 to an Android device, including solutions to typical problems. We will analyze not only basic synchronization, but also the notification settings, firmware updates, and tips for extending battery life. If you have just unpacked the bracelet or encountered connection errors, this guide will help save time and avoid common errors.

Preparing for connection: what to do before synchronization

Before you start pairing the Mi Band 4 with your phone, follow a few preliminary steps.

First, check your smartphone compatibility. The bracelet works with Android version 4.4 and higher, but Android 6.0+ is recommended for stable operation. Make sure the phone is on Bluetooth 4.0 (or later) - without it, you can not connect. You can check the Bluetooth version from the Settings menu → About Phone → Bluetooth version.

Second, charge the bracelet. Even if the indicator shows charge, connect the Mi Band 4 to the charger for 10-15 minutes. Low battery level can interrupt the synchronization process. Full charge is signaled by a green indicator on the bracelet screen - this is the only reliable indicator, since the percentage of charge in the application is sometimes displayed incorrectly.

• 📱 Upgrade your phone to the latest version (especially if you have Android 8-10).
• 🔋 Use the original cable to charge the bracelet - unoriginal can damage the contacts.
• 🌐 Connect your phone to Wi-Fi – this will be required for downloading the application and firmware updates.
• 🔒 Turn it off. VPN Proxies, if active, can block access to Xiaomi servers.

⚠️ Note: If you have previously used a fitness bracelet of another brand (such as the Huawei Band or Honor Band), delete its application.

What is the Xiaomi Mi Band 4: Mi Fit vs Zepp Life app?

Officially, the Xiaomi Mi Band 4 supports two apps: Mi Fit and Zepp Life (formerly called Amazfit), both developed by Huami (a subsidiary of Xiaomi), but with differences in interface and functionality.

Mi Fit is a classic application with a minimalist design, suitable for basic use: tracking steps, pulse, sleep and receiving notifications. Zepp Life, in turn, offers advanced analytics (such as assessing stress, breathing in sleep) and a more modern interface. However, in Zepp Life, some functions (such as setting alarm clocks) are hidden deeper.

For most users, we recommend Mi Fit, which is lighter and less likely to give out errors. Zepp Life is worth choosing if you want detailed sleep statistics or plan to buy an Amazfit smartwatch in the future. Both apps are free and available on Google Play.

Step-by-step: how to connect Mi Band 4 to Android

Now, to the synchronization process itself, follow the instructions carefully, and skipping the steps can cause failures.

1. Download and install Mi Fit from Google Play. Open the app and register (you can use Google, Facebook or email).
2. Add the device to Mi Fit: Click on Profile icon (lower right). Select Add device. In the list, find Mi Smart Band 4 and tap it.

Bring the bracelet to the phone.

Mi Band 4

Update the firmware

Once successfully connected, the bracelet vibrates and the app will show its status (Connected). If the process is delayed or there is an error, restart both devices and try again.

Is the bracelet charged to 100%?|Is Bluetooth on the phone?|Is the latest update of Mi Fit installed?|Aren't they active? VPN-connection?|Is the bracelet near the phone (within a radius of 10 cm)?-->

⚠️ Note: If Mi Fit requests permission to access Contacts and Messages when connecting, provide it - otherwise notifications of calls and messages. SMS This data is not transmitted to Xiaomi servers, but is used only to display alerts on the bracelet.

Set up notifications and basic functions after connecting

Once synchronized, the Mi Band 4 is ready to go, but for comfortable use, you need to configure notifications and basic settings. Go to the Mi Fit app, select your bracelet, and go to Notifications.

Here you can:

• 📩 Enable alerts for calls, SMS and messengers (WhatsApp, Telegram, Viber, etc.).
• 🔔 Set up vibration: choose duration and intensity (e.g. for alarm clocks).
• 🚫 Disable unnecessary notifications – for example, from games or social networks, so that the bracelet does not vibrate for trifles.
• 🌙 Activate the "Do Not Disturb" mode at night or for important meetings.

We also recommend setting up:

• 🏃 Activity goals (steps, calories, sleep time) in Profile → Targets.
• ⏰ Smart alarm clock that will wake you up in the phase of light sleep (Alarm section).
• 💓 Continuous pulse monitoring (included in Device Profile) → Monitoring of heart rate).

Please note: if notifications do not arrive, check:

1. Permissions for Mi Fit in Android settings (Settings → Applications → Mi Fit → Permissions).
2. Power saving settings – some phones (e.g. Xiaomi, Huawei) block the background of applications.
3. Do not disturb the activity of the regime on the bracelet.

💡

If notifications are duplicated (coming to both your phone and your bracelet), turn them off in the messenger settings. For example, on WhatsApp, go to Settings → Notifications → Sound and vibration and uncheck Vibration.

Firmware Update: Why It Matters and How to Do It Right

Mi Band 4 firmware is responsible for stability, new features and bug fixes. Xiaomi regularly releases updates, so check the version's relevance once connected.

• 🔄 Spontaneous reboot of the bracelet.
• 📵 Losing phone connection.
• ⚡ Fast battery discharge.
• 🚫 Failing notifications.

To update the firmware:

1. Open the Mi Fit and go to the bracelet profile.
2. Slip on the three dots in the top right corner and select the firmware update.
3. If a new version is available, click Update and wait until it is completed (the bracelet will reboot automatically).

Important rules for updating:

• 🚫 Don’t close Mi Fit or shut down Bluetooth until the end of the process.

⚠️ Warning: If the bracelet gets worse after the upgrade (for example, it discharges quickly), try rolling back the firmware. → Back to the factory version. This will reset all settings, so pre-backup the data in the app.

Common Connection Errors and Their Solutions

Even with the correct following of the instructions, users sometimes encounter problems, and let's look at the most common errors and how to fix them.

If none of these methods worked, try resetting the bracelet to factory settings.

1. In Mi Fit, go to Device Profile → Settings → Reset.
2. Confirm the action - the bracelet will reset.
3. Reconnect it as you did when you first used it.

Reset removes all data from the bracelet (steps, sleep history), but often solves connection problems.

💡

If the bracelet plugs in but shuts down after a few hours, check your phone’s power saving settings. On Xiaomi, Redmi, and POCO devices, add Mi Fit to the list of optimized apps (Settings → Battery → Battery → Battery Optimization → All apps → Mi Fit → Do not optimize).

Tips for extending the life of the Mi Band 4 battery

Officially, the Xiaomi Mi Band 4 holds a charge of up to 20 days, but in practice this time is often shortened to 7-10 days, due to the active use of functions like continuous monitoring of the pulse or frequent notifications.

• ⏱ Turn off automatic pulse measurement (only keep manual mode) and save up to 30% of charge.
• 🌓 Reduce the brightness of the screen to 2-3 divisions in the bracelet settings.
• 🚫 Deactivate notifications from unnecessary apps (such as games or news services).
• 🔄 Update the firmware – in new versions, energy consumption is optimized.
• 🌡 Avoid extreme temperatures (below 0)°C or higher than 40°C) - they accelerate discharge.

If the bracelet discharges faster than 5 days, check:

• 🔋 Battery status: over time, capacity decreases. If the bracelet is more than 2 years old, it may be time to replace the battery.
• 📲 Background processes – some applications (e.g. Zepp Life) consume charge even in the background.
• 🔌 Charging quality – use only the original cable and adapter 5V/1A.

To check the real time of work, perform the test:

1. Charge the bracelet to 100%.
2. Turn off all functions except step count.
3. Use it in normal mode (without intense loads).
4. See how many days the charge will last.

If the result is less than 10 days, contact the service center - you may need to replace the battery.

FAQ: answers to frequent questions about Xiaomi Mi Band 4