How to set up Xiaomi Mi Band 3: from the first on to hidden features

The Xiaomi Mi Band 3 fitness bracelet remains one of the most popular gadgets for tracking activity despite the release of new models, its main advantages are simplicity, reliability and low price. However, many users face difficulties in the first setup: the bracelet does not connect to the phone, does not show notifications or quickly discharges. In this article, you will find detailed instructions for setting up all the nuances, as well as tips for optimizing the device.

We'll look at not only basic features like heart rate or pedometer, but also hidden features that aren't mentioned in the official documentation, like how to set a vibration alarm, turn on the weather or sync data with Google Fit, and focus on common bugs that make the bracelet malfunction, from Bluetooth problems to Mi Fit app failures.

Preparation for setting up: what to do before turning on the bracelet

Before you start setting up Mi Band 3, make sure you have everything you need, which will save time and eliminate common problems such as not being able to connect or not having notifications.

Minimum requirements for work:

• 📱 Smartphone on Android 5.0+ or iOS 9.0+ Bluetooth 4.0 support
• 🔋 Charged bracelet (minimum 20% battery, better than 50%)
• 📲 Installed Mi Fit app (last version from App Store or Google Play)
• 🌐 Stable Internet connection (for data synchronization and firmware updates)

If you have an iPhone, note that some features (such as unlocking the screen) may not work stable due to the limitations of iOS. Android owners are advised to enable autorun for the Mi Fit app in the phone settings - this will prevent communication breaks with the bracelet.

⚠️ Warning: Don't use third-party chargers! the Mi Band 3 cable has a unique connector and connecting non-original adapters can damage contacts or battery.

First Enablement and Connection to the Phone

The activation process of the Mi Band 3 takes no more than 5 minutes, if you follow the instructions, starting with the physical activation of the device:

1. Put the bracelet on your hand and find a touch button (a round touchpad under the screen) on the back.
2. Touch it once, the screen should light up. If there's no reaction, plug the bracelet into the charger. 10-15 minute.
3. After the Mi logo appears, swipe up the screen to unlock the device.

Now we move on to synchronization with the smartphone:

1. Open the Mi Fit app and sign up (or sign in to your Xiaomi account).
2. Click Profile → Add Device → Bracelet → Mi Smart Band 3.
3. Allow the app to access notifications, geolocation, and contacts (this is necessary for proper operation).
4. Wait until the bracelet is determined in the list of available devices, and confirm the connection on both gadgets.

If the bracelet is not present, check:

• 🔄 Is Bluetooth on your phone and is it in power saving mode.
• 🔋 Is the bracelet sufficiently charged (at 10% of the battery, the connection may break down).
• 📱 Is the Mi Fit version compatible with your bracelet model (update the app).

Set up the main parameters: time, notifications, profile

Once you've successfully connected, you need to configure the basic functions to make the bracelet work properly, starting with synchronizing time and personal data.

1. Setting the time and date

The bracelet automatically syncs the time with the phone, but if the clock is stray:

1. In Mi Fit go to Profile → Mi Smart Band 3 → Additional settings → Time.
2. Enable the option of autosynchronization of time.
3. If the difference persists, manually set the time zone in the phone settings.

2. Personalization of the profile

To more accurately track the activity of the bracelet, specify:

• 👤 Gender, age, weight and height (in Profile) → Personal data).
• 🏃‍♂️ Target number of steps (by default 10 000, but can be changed).
• 💤 Sleep time (this will help improve monitoring accuracy).

Notifications

To receive alerts about calls and messages:

1. In Mi Fit, select Mi Smart Band 3. → Notifications.
2. Turn on the Call Notification and Notifications from the apps switch.
3. Select the apps you want to see alerts from (such as WhatsApp, Telegram, Gmail).
4. Set up the display style: only the icon or text of the message.

⚠️ Note: On iPhone, notifications may be delayed due to iOS restrictions.To reduce lag, turn on Mi Fit in your phone settings → Notifications → Allow critical alerts.

Extended functions: pulse, sleep, training

The Mi Band 3 has a lot more to do than count steps. Let's look at key features that often go unnoticed.

1. Heart rate monitoring

The pulse sensor on the bracelet operates in two modes:

• 🩺 Automatic (measures every 30 minutes in the daytime).
• 🏋️‍♂️ Manual (measurement on request – touch the icon) ❤️ bracelet).

To set up an automatic measurement:

1. In Mi Fit, go to Mi Smart Band 3 → Monitoring of heart rate.
2. Enable the option of Automatic Measurement.
3. Set the interval (30 minutes is recommended for balance of accuracy and battery savings).

2. Sleep tracking

The bracelet automatically detects sleep phases (deep, light, wakefulness), but for accuracy:

• 😴 Wear the bracelet tighter before bed (but not too tight).
• 📵 Turn off the screen lighting for the night (bracelet settings) → Illumination → Off.).
• ☕ Avoid alcohol and caffeine 4 hours before bedtime – they distort the data.

3. Training regimes

Mi Band 3 supports 5 activities:

• 🏃 Running (outside or on a treadmill).
• 🚶 Walking.
• 🚴 Cycling.
• 🏊 Swimming (bracelet waterproof up to 50 meters).
• 🏋️‍♂️ Gym room.

To start training:

1. On the bracelet swipe to the right to the icon 🏃.
2. Select the type of activity.
3. Tap the Start button and wait for the vibration.
4. At the end, press pause. → Complete.

Hidden Opportunities: Weather, Alarm, Unlocking Phone

Many users don't know that the Mi Band 3 can display the weather, act as an alarm clock, or even unlock a smartphone.

1. Weather display

To see the forecast directly on the bracelet:

1. In Mi Fit, turn on the weather → Showing on the bracelet.
2. Select a city (the default is your geolocation).
3. On the bracelet swipe to the right to the icon ☀️/⛅.

Important: the weather is only updated when synchronized with your phone. If the data is outdated, manually update it in the Mi Fit app.

2. Vibration alarm clock

The bracelet can wake you with a quiet vibration without disturbing others:

1. In Mi Fit, select alarm clocks. → Add an alarm clock.
2. Set the time and days of the week.
3. Turn on the Vibration option on the bracelet.
4. There will be an icon on the bracelet. ⏰ — Touch it to check the work.

3. Unlocking the phone

The feature only works on Android and requires pre-configuration:

1. In Mi Fit, go to Mi Smart Band 3 → Unlocking the phone.
2. Follow the instructions: Enable Smart Lock in your phone’s security settings.
3. Tie the bracelet as a trusted device.
4. Now, when you bring the bracelet to the phone, the screen will unlock automatically.

⚠️ Note: If you reset your bracelet or phone settings, the binding to unlock will have to be reconfigured, and the feature may not work on custom firmware (for example, LineageOS).

💡

To extend the life of the battery, turn off automatic pulse measurement at night. To do this, in Mi Fit, go to Heart Rate Monitoring. → Schedule and set the interval from 8:00 to 22:00.

Battery Optimization: How to Prolong Bracelet Performance

Average Mi Band operating time 3 single-charge — 15-20 days, but with active use it can be reduced to 7-10 Here's how to increase autonomy:

1. Screen settings

• 🔦 Reduce brightness: Bracelet settings → Brightness → 1st or 2nd level.
• ⏱️ Reduce the lighting time: Bracelet settings → Illumination → 5 seconds.
• 🌙 Turn on night mode (turns off backlights from 22:00 to 6:00).

2. Notification management

• 📵 Disable notifications from unnecessary apps (such as games or social media).
• 🔕 Turn on the "Do Not Disturb" mode during sleep.

3. Sensor optimization

• ❤️‍🩺 Reduce the pulse rate to 1 time per hour.
• 🚶 Turn off activity autodetermination (if not used).

💡

The most effective way to save charge is to turn off the constant pulse measurement, which will prolong the bracelet's function. 40-50%, The main functions (stepmer, notifications) will remain available.

Problem Solving: Bracelet does not synchronize, does not vibrate, discharges quickly

Even with the right setup, the Mi Band 3 can malfunction, and let's look at the typical faults and how to fix them.

1.The bracelet is not synchronized with the phone

• 🔄 Reset the bracelet: Press the touch button for 10 seconds until the Mi logo appears.
• 📱 Reinstall the Mi Fit app.
• 🔋 Check the bracelet charge (at 5% synchronization may not work).
• 📶 Turn on the flight mode on the phone for 30 seconds, then turn off.

2.No vibration at notifications

• 🔊 Check if vibration is included in bracelet settings → Vibration.
• 📵 Make sure that notifications are allowed for Mi Fit in your phone settings.
• 🔋 If the battery is almost discharged, the bracelet can turn off vibration to save energy.

3. Rapid battery discharge

• 🔋 Check if the bracelet is still on in training mode.
• 📱 Update the bracelet firmware through Mi Fit.
• 🧲 Avoid exposure to magnetic fields (for example, do not place the bracelet near the speakers).

4.Pulse sensor is not working

• 🧼 Wipe the sensor on the back of the bracelet with an alcohol napkin.
• 💪 Wear the bracelet tighter (but don't squeeze your hand).
• 🩺 Check if the energy saving mode is included in the settings.

FAQ: Answers to Frequent Questions