How to activate the fitness bracelet Xiaomi Mi Band 3: full instructions with photos and tips

Why to activate Mi Band 3 and what it does

The Xiaomi Mi Band 3 fitness bracelet remains one of the most popular activity-tracking gadgets even years after its release, and activating it is not just about turning on the device, but about fully configuring everything from heart rate monitoring to smartphone notifications. Without proper activation, the bracelet will work like a regular electronic watch, devoid of smart features.

Many users mistakenly think that it is enough to charge the bracelet and put it on the hand, but this is only the first step. Full activation includes synchronization with the application, customization of the user profile, updating the firmware and calibrating the sensors. For example, without binding to the Mi Account account, you will not be able to save training data or use the "Find the bracelet" feature. In this article, we will discuss the entire process from A to Z, including solutions to typical problems.

The Mi Band 3 is cross-platform: the bracelet works equally well with Android (version 4.4 and higher) and iOS (from 9.0), but the activation algorithm on these platforms is slightly different. We will look at both options, and also give tips on how to optimize the bracelet after the first setup.

Preparation for activation: what to do before turning on the bracelet

Before you start activating, make sure you have everything you need, which will prevent interruptions and possible errors.

• 🔋 Mi Band 3 Charger (included) – bracelet must be charged at least 20 times%
• 📱 Smartphone with Android 4.4+ or iOS 9.0+ and free space (minimum 100 MB)
• 🌐 Stable Internet connection (Wi-Fi or mobile Internet) for downloading applications and updates
• 📌 Mi Account (can be created during setup)
• ⚙️ Bluetooth enabled and Geodata on your smartphone

Note the bracelet charging: The Mi Band 3 has a unique connector that requires precise positioning. If the charging indicator (three white dots) doesn't light up when you plug in, try turning the bracelet over or clearing the contacts of dust. It takes about 2 hours to fully charge, but 15-20 minutes is enough to activate.

Also check your smartphone compatibility. For example, on an iPhone with iOS 8 or lower, the Mi Fit app will not install. Android may need to enable installation from unknown sources if you are downloading APK from a non-Google Play. Mi Band 3 bracelet does not support synchronization with tablets or PCs - only with smartphones.

How to turn on and activate Mi Band 3

Now, to the activation process itself, follow the instructions in strict order to avoid synchronization errors.

Step 1: Installation of the Mi Fit application

Download the official Mi Fit app from:

• 📱 Google Play for Android)
• 🍎 App Store (for iOS)

Once installed, open the app and sign up (or log in to an existing Mi Account). Without an account binding, the bracelet will not save data to the cloud.

Step 2: Turning on the bracelet

Press the touch button below the Mi Band 3 screen and hold it for 3-5 seconds until the Mi logo appears. This signals the on. If the screen does not respond, check the charge of the bracelet - at a discharge below 5%, it will not turn on.

Step 3: Synchronize with your phone

In the Mi Fit app, click Profile → Add Device → Bracelet → Mi Smart Band 3. Follow the instructions on the screen. When a Bluetooth connection request appears, confirm it. The bracelet will emit a vibration when successfully synchronized.

If the app does not find the bracelet:

1. Reboot the Mi Band 3 (hold the 10 seconds button).
2. Turn off/turn on Bluetooth on your smartphone.
3. Make sure the bracelet is not connected to another device.

💡

If you have two smartphones (for example, a work and a personal), the bracelet can only be connected to one device at a time. To change the phone, you first need to unplug the Mi Band 3 in the application settings.

Configure the main functions after activation

After successful synchronization, you need to adjust the key parameters to make the bracelet work as efficiently as possible. Go to Profile → Mi Smart Band 3 in the Mi Fit app.

1. Personal data

Specify:

• 👤 Gender (affects calorie calculation)
• 📏 Height and weight (for accurate tracking of activity)
• 🎯 Step-by-step goal (recommended value — 8000-10000 day-to-day)

Without these data, pedometer and calorie values will be inaccurate.

Notifications

Include alerts for:

• 📞 Incoming calls (vibration) + subscriber)
• 💬 Communications (SMS, WhatsApp, Telegram and others.)
• 🔔 Alarm clocks and reminders

On Android, you'll need to give Mi Fit permission to access notifications in your system settings. On iOS, this is done automatically.

3. Monitoring of sleep and heart rate

Activate:

• 💤 Automatic sleep monitoring (recognition of deep and superficial sleep phases)
• ❤️ Pulse measurement (continuous or manual mode can be set)

Solving problems with activation of Mi Band 3

Even if you follow the instructions accurately, you can get errors, and let's look at the most common ones and how to fix them.

1. The bracelet is not switched on

Possible causes and solutions:

• 🔋 Battery discharged → Charge the bracelet for 30 minutes, then try to turn on.
• 💧 Moisture intrusion → Dry the device for 24 hours (do not use a hair dryer!).
• 🔄 Firmware getting stuck → Hold the 15-second button for forced reboot.

2.The app does not find the bracelet.

In order:

1. Reboot your smartphone and bracelet.
2. Remove the Mi Band 3 from the list of Bluetooth devices on your phone.
3. Turn off VPN or proxy – they can block the connection.
4. Try connecting from another phone to rule out hardware malfunction of the bracelet.

💡

If the bracelet was previously linked to another Mi Account, you must first reset it to factory settings. To do this, find Settings → Reset (you will need confirmation on the phone).

3. Data synchronization error

Often occurs due to:

• 📶 The Unstable Internet → Connect to another network.
• ⏳ An outdated version of the Mi Fit → Update the app.
• 🔒 Blocking background activity → Allow auto-run Mi Fit in phone settings.

⚠️ Note: If the bracelet shows the wrong time after activation, check the time zone settings in Mi Fit. the app takes time from the phone, but sometimes manual synchronization through Profile is required → Mi Smart Band 3 → Additionally. → Synchronize time.

Updating firmware and optimizing work

After the first activation, it is recommended to update the firmware of the bracelet, this will fix possible bugs and add new features.

1. Open Mi Fit and go to Profile → Mi Smart Band 3 → Firmware Update.
2. If a new version is available, click Update.
3. Wait until the bracelet is completed (reboot automatically).

Modern firmware versions for Mi Band 3 include:

• 🌙 Improved sleep tracking algorithm.
• 🏃‍♂️ Support for new types of training (swimming, cycling).
• 🔒 Security fixes to protect data.

To extend the battery life:

• Turn off continuous pulse monitoring if you don't need it.
• Reduce the brightness of the screen to 2-3 divisions.
• Turn off the vibration for unnecessary notifications.

⚠️ Warning: Do not interrupt the firmware update process! If the bracelet battery runs out during the upgrade, this may cause the device to fail completely. Charge the bracelet to at least 50% before starting.

Reset to factory settings: when and how to do

The Mi Band 3 may be reset in the following cases:

• 🔄 The bracelet is severely inhibited or hangs.
• 📱 You sell/transfer the device to another person.
• 🔗 You need to link the bracelet to another Mi Account.

For discharge:

1. On the bracelet, go to Settings → Additional → Reset.
2. Confirm the action on the bracelet screen.
3. After restarting, activate again.

Alternatively, if the bracelet does not respond:

1. Hold the touch button for 15 seconds until you feel the vibration.
2. Release the button - the bracelet will reboot in factory condition.

FAQ: Frequent questions about activating Mi Band 3