Connecting Xiaomi Mi Band 3 to Android via Bluetooth: full instructions with nuances

Why you need to sync Mi Band 3 with your phone

The Xiaomi Mi Band 3 fitness bracelet, released in 2018, is still popular with users due to its price-to-feature balance. However, many people face difficulties when connecting a device to an Android smartphone for the first time. The problems arise not because of a malfunction of gadgets, but because of the features of the Bluetooth Low Energy (BLE) protocol used for communication. In this article, we will discuss not only the standard pairing procedure, but also the hidden Android settings that affect the stability of the connection.

It’s important to understand that the Mi Band 3 doesn’t just transmit steps or pulse data, it integrates into the Xiaomi ecosystem through the Mi Fit app (or its alternatives like Zepp Life), which means that notifications, alarms, and in some cases even unlocking your phone on the wristband depends on the correct connection. If you’ve used other versions of the Mi Band, the usual algorithm may not work: Mi Band 3 requires separate authorization in the Xiaomi account and setting permissions manually.

Requirements for phone and bracelet before connection

Before you start pairing, make sure your smartphone and bracelet meet the minimum requirements. For the Mi Band 3, the following conditions apply:

• 📱 Android Version: No less than 5.0 Lollipop (recommended 6.0)+ stable operation of notifications).
• 🔵 Bluetooth: Support for the standard BLE 4.2 or later. check the phone settings (Settings) → The phone. → Information on the PO).
• 🔋 Bracelet charge: at least 20% (at low charge, Mi Band 3 can be turned off during synchronization).
• 📲 Free space: The phone must have at least 100MB to install the Mi Fit app and data cache.

Beginning with Android 6.0, applications require explicit confirmation of access to:

• 📍 Geolocation (for accurate tracking of activity).
• 📞 Notifications (to have the bracelet show incoming calls and messages).
• 📁 Storage (for backup of data).

If your phone is released before 2016, there may be energy-saving problems: some manufacturers (such as Samsung or Huawei) aggressively optimize the background of applications. This can lead to automatic Bluetooth shutdown after 5-10 minutes of inactivity.

Step-by-step: connecting Mi Band 3 to Android

The pairing process consists of three steps: installing the application, finding the bracelet, and setting up the synchronization. Follow the instructions in strict order to avoid errors.

1. Installation and configuration of the Mi Fit application

Download the official Mi Fit app from Google Play.Alternative sources (APK-files) may contain outdated versions or malicious code:

1. Open Mi Fit and select the region of Russia (or your country).
2. Click Sign up or Sign in if you already have a Xiaomi account.
3. Confirm your phone number or email (without this, the bracelet will not be attached to your profile!).

2. activation of Bluetooth and bracelet search

Now turn on Bluetooth on your phone (Settings → Connected Devices → Bluetooth) and follow the following steps:

1. In the Mi Fit app, click Profile → Add the device.
2. Choose from the list of Mi Smart Band 3.
3. Press Connect and wait for the phone to find the bracelet. On the Mi Band 3 screen, a confirmation request will appear - tap the sensor (buttons under the screen).

Turn on Bluetooth on your phone|Charge the Mi Band 3 to 50%+|Install Mi Fit from the official store|Registering a Xiaomi account-->

If the bracelet is not present, try:

• 🔄 Reboot the Mi Band 3 (press the sensor for 10 seconds until vibrations appear).
• 📱 Restart Bluetooth on your phone (turn off/turn on notification curtain).
• 🔍 Make sure the bracelet is not connected to another device (e.g., a tablet).

3. Set up notifications and synchronization

After successful connection:

1. In the Mi Fit app, go to the bracelet section (Profile → Mi Smart Band 3).
2. Activate options: 🔔 Call notifications 📩 Notifications from applications (select messengers: WhatsApp, Telegram, etc.) 🔐 Unlocking your phone (if supported by your smartphone model).

Autosynchronization

1 hour

💡

If notifications don't arrive on the bracelet, check your Android energy saving settings. Add Mi Fit to exceptions: Settings → Battery → Battery Optimization → All apps → Mi Fit → Do not optimize

Common mistakes and their solutions

Even with the right instructions, users face typical problems, and let's look at the most common ones and how to fix them.

If after all the manipulations the bracelet still does not connect, try to reset it to the factory settings:

1. On the bracelet, go to Settings → Additional → Reset (scroll the screen with swipes).
2. Confirm the reset by pressing the sensor.
3. Repeat the connection procedure again.

Optimization of the bracelet: hidden settings Android

Many users don't know that the stability of the Mi Band 3 connection depends not only on the bracelet itself, but also on the hidden parameters of Android. For example, on Xiaomi, Redmi or POCO phones, the Bluetooth Auto-Disable feature is activated by default, which breaks the connection after 10 minutes of inactivity.

1. Go to Settings → Connections and Sharing → Bluetooth.
2. Click on the three dots in the upper right corner and select Additional.
3. Turn off the option of Automatic Bluetooth Shutdown.

💡

On MIUI shell phones (Xiaomi, Redmi, POCO), be sure to turn off the dual apps feature for Mi Fit. It creates a copy of the program, which leads to synchronization conflicts.

Another useful trick is forced data synchronization, and if the bracelet doesn't update your steps or sleep information for a long time, do this:

1. Open Mi Fit and pull the screen down for an update.
2. If that doesn’t work, go to Profile → Mi Smart Band 3 → Sync your data.

Mi Band 3 apps: When Mi Fit doesn't work

The official Mi Fit app doesn’t always suit users: it has limited functionality for older bracelet models, and the interface can seem overloaded.

• 🔹 Zepp Life (formerly Amazfit) – supports Mi Band 3 but requires a new account.
• 🔹 Notify & Fitness for Mi Band – Expands Notifications and Widgets.
• 🔹 Mi Bandage – open source software with support for custom firmware (for advanced users).

Before installing third-party applications, consider:

⚠️ Warning: Alternative programs may not support all of the Mi Band 3’s features, such as unlocking your phone or paying through Mi Pay. In addition, they often require root rights to work properly, which voids the phone warranty.

If you decide to try Notify & Fitness, follow this guide:

1. Remove the Mi Fit (they are in conflict with each other).
2. Install Notify & Fitness from Google Play.
3. When you first start, select the Mi Band 3 model and confirm pairing.
4. In the application settings, activate Show notifications and Ignore battery optimization.

Mi Band 3 firmware update: why it matters

The firmware of the bracelet affects not only the stability of communication, but also the availability of new features, for example, in the latest versions of the firmware for the Mi Band 3 fixed:

• 🔋 Bugs with display of battery level.
• 🏃‍♂️ Mistakes in counting steps when running.
• 🌙 Problems with tracking sleep phases.

To update the firmware:

1. Open the Mi Fit and go to the bracelet profile.
2. Click on the three dots in the top right corner and select Firmware Update.
3. If the update is available, confirm it is installed. Do not turn off Bluetooth or close the application until the process is complete (this may "brick" the bracelet).

⚠️ Warning: If the bracelet is out or out of order during the firmware update, it may stop responding to charging.In this case, a forced reset is required: connect the Mi Band 3 to charging and hold the sensor for 15 seconds until the Mi logo appears.

Check the firmware version of your bracelet:

1. On Mi Band 3, go to Settings → About the bracelet.
2. Compare the version number with the latest official one on Xiaomi's website. Current firmware is usually 1.0.1.XX or newer.

FAQ: Answers to Frequent Questions