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

Why sync Mi Band 4 with your phone?

Xiaomi Mi Smart Band 4 fitness bracelet is one of the most popular wearables thanks to its combination of functionality and affordable price. But without the right synchronization with your smartphone, you lose 90% of its capabilities, from monitoring sleep to controlling music. Connecting to your phone gives you access to advanced statistics in the Mi Fit app, setting up notifications and even the option of finding the bracelet if you lose it.

Many users have difficulty connecting for the first time: the bracelet is not detected, the app can’t see the device, or the sync is interrupted. In this article, we will discuss not only the standard pairing procedure, but also solve 5 of the most common problems faced by Mi Band 4 owners on Android and iOS.

Requirements for the phone before connecting

Before you start syncing, make sure your smartphone meets the minimum requirements. Xiaomi Mi Smart Band 4 is compatible with devices on Android 4.4+ or iOS 9.0+, but for full operation it is better to use the latest versions of the OS. For example, on Android 4.4, the display of notifications from some messengers may not work.

Also check the following parameters:

• 📱 Bluetooth 4.0+: bracelet uses protocol BLE (Bluetooth Low Energy, which is supported by all modern smartphones. On older devices (for example, Samsung Galaxy). S3 iPhone 4S) There may be problems with connection.
• 📶 Stable Internet connection: required to download the Mi Fit app and update the bracelet firmware. With a slow Internet, data synchronization can take up to 10 minutes.
• 🔋 Bracelet charge at least 20%: if the charge level is lower, the device can shut down during setup. Mi Band 4 automatically goes into power saving mode when charged below 5%, which blocks synchronization.

If your phone meets all the criteria, but the bracelet still doesn't connect, try rebooting your smartphone and resetting your network settings. Sometimes conflicts arise because of the Bluetooth module cache.

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

The sync process on Android consists of 5 key steps. Follow them consistently to avoid errors. If you have any difficulties at any stage, go to the section "Solution of Connection Problems".

1. Download the official app from Google Play. Avoid third-party sources - they can distribute outdated or modified versions that do not support Mi Band 4. Once installed, open the app and register (or log in via your Xiaomi, Google, Facebook account).
2. Bluetooth Activation and Permissions Turn Bluetooth on your phone and allow Mi Fit to access geodata, contacts and notifications. Without these permissions, the bracelet will not be able to show incoming calls or messages. Pathway to permission settings: Settings → Applications → Mi Fit → Permissions.
3. Add Device In the Mi Fit app, click on the "+" icon (or "Add Device") and select the Mi Smart Band 4 from the list. If the model is not listed, update the app or check the region in your account settings (should match the region of your bracelet purchase).
4. Press the touch button on the bracelet to wake the screen, then confirm the connection in the application. If the pairing request does not appear, reset the bracelet by holding the touch button for 10 seconds.
5. After connecting, Mi Fit will offer to update the firmware of the bracelet. Do not interrupt the process, this can cause a device failure. The update takes 3-7 minutes, the bracelet will restart automatically.

Charge the bracelet to 50%+

Install Mi Fit from the official store

Enable Bluetooth and geolocation

Allow all requests of the application

Update the bracelet firmware after connecting-->

If the bracelet doesn’t display notifications after a successful connection, check your sync settings in Mi Fit → Device Profile → Notifications. Some smartphone manufacturers (e.g. Huawei or Xiaomi) block the background work of apps – add Mi Fit to the exclusion list.

Connecting Mi Band 4 to iPhone: features and nuances

On iOS, the sync process is almost identical to Android, but there are a few key differences: First, the Mi Fit app for iPhone has a reduced functionality due to Apple's limitations, for example, it does not allow you to set alarm clocks through a bracelet or control music.

Second, iOS has a much more robust control over the background of apps, so that notifications are stable:

1. Open Settings → Mi Fit → Notifications and enable the “Allow Notifications” option.
2. Go to Settings → Bluetooth and find Mi Band 4 in the list of devices. Click on the "i" icon next to the name and activate "Show notifications".
3. In Settings → Screen time → Always allowed add Mi Fit to make the application work in the background.

Another common problem on the iPhone is that the bracelet connects but doesn't sync your step or sleep data, because Apple blocks access to motion sensors for third-party applications.

• 🔄 Reconnect the bracelet (forget the device in Bluetooth settings and add again).
• 📱 Update iOS to the latest version – new versions have relaxed restrictions.
• 🔋 Reboot both the bracelet and iPhone at the same time.

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If after the iOS update, the bracelet stopped connecting, reset it to factory settings: hold the touch button for 20 seconds until the vibration and the Mi logo appear.

Setup of the bracelet after connecting

Successful synchronization is just the first step, and to make the Mi Band 4 work as efficiently as possible, set the key parameters:

Pay special attention to setting activity goals. The default bracelet offers 8,000 steps per day, but you can change this value in Mi Fit → Profile → Targets. For office workers, 6,000-7000 steps are optimal, for active users - 10,000+. It is also useful to enable the option "Reminder of inactivity" (every 45-60 minutes) to avoid stagnation during prolonged sedentary work.

If you're a sports person, activate the "Workout Recognition" mode in the bracelet settings, which automatically detects walking, running, or cycling, and records the route (if you have a GPS smartphone connected), and then you can export the data to Strava or Google Fit.

Solving Mi Band 4 Connectivity Problems

Even with the right setup, there can be failures, and let's look at the most common errors and how to fix them.

1 The bracelet is not defined in Mi Fit

Reasons:

• 🔌 Bracelet discharged or faulty charging cable.
• 📵 Bluetooth is disabled or is not operating smoothly.
• 🔄 An outdated version of the Mi Fit app.

Decisions:

1. Charge the bracelet to 100% and reset it (hold the 10 seconds button).
2. In the smartphone settings, forget the Mi Band 4 device and restart the Bluetooth module (turn off/on Bluetooth).
3. Update Mi Fit to the latest version or reinstall the app.

2. data synchronization is interrupted

This is a problem on smartphones with aggressive battery optimization (e.g. Xiaomi, Huawei, Samsung).

• 🛡️ Add Mi Fit to the list of protected applications (Settings) → Battery → Optimizing the battery).
• 🔄 Turn off the energy saving mode during synchronization.
• 📶 Connect to Wi-Fi network – synchronization on mobile data may break.

3.The bracelet vibrates, but no notifications are shown

Vibration without notification text means Mi Fit has no access to the message history.

• 📱 On Android: Check the permissions for Mi Fit in Settings → Annexes → Permits → Notifications.
• 🍎 On iOS: Go to Settings → Notifications → Mi Fit and turn on "Show on the lock screen".
• 🔄 Reconnect the bracelet to the phone.

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If the notification problem persists, try using the Notify & Fitness for Mi Band alternative app (available on Android).

⚠️ Warning: If the bracelet has stopped responding to touches after a failed firmware update, reset to factory settings. To do this, plug it into charging and hold the button for 30 seconds until the Mi logo appears.

Tips for extending the life of the bracelet

Xiaomi Mi Smart Band 4 is designed for 1-2 years of active use, but if used correctly, it can last longer.

• 🔋 Charging: Use only the original cable. Charge the bracelet to 100% and do not leave it on charge for more than 2 hours - this reduces battery life. Optimal charge level for storage is 40-60%.
• 💦 ← The Relief: Despite the Claimed 5 ATM, Avoid prolonged contact with soapy water or chlorinated water in the pool.
• 🌡️ Temperature: Do not leave the bracelet in direct sunlight (such as on the dashboard of the car) – overheating can damage the screen.
• 🔄 Updates: Install firmware as soon as it is released. New versions fix synchronization errors and add support for new features.
• 🧼 Clean: Once a month, wipe your bracelet and strap with an alcohol napkin.Dirt under the touch button can cause false positives.

If the screen of the bracelet became dull or appeared "dead" pixels, this may indicate wear and tear. OLED-If you do, you can go to the service center, and it's cheaper to replace the screen than it is to buy a new bracelet.

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To check the actual battery wear, install the Mi Band 4 Tools (Android) app and see the charging cycle statistics in the Battery Health section.

FAQ: Answers to Frequent Questions