The Complete Guide: How to Use Xiaomi Mi Band 4 Fitness Bracelet

The appearance of Xiaomi Mi Band 4 in the wearable electronics market was a real breakthrough for the budget segment. AMOLED-The screen, the greatly improved pulse sensor and music control support that were previously unavailable in this price range. First-timers often wonder how to unlock its full potential and avoid the typical errors in initial setup.

Unlike its predecessors, the fourth version requires the use of the Mi Fit mobile application (or Zepp Life) to fully synchronize data. Without pairing with a smartphone, the bracelet turns into a simple watch with a basic time display, losing its main function - collecting and analyzing health statistics. It is important to understand that it is the bracelet-smartphone that ensures the operation of all smart functions.

In this article, we will take a look at all the stages of the device’s operation, from unpacking to fine-tuning notifications. You will learn how to wear the device correctly for accurate readings, what hidden features are available and how to extend battery life. A key feature of the Mi Band 4 is the ability to install third-party dials, which radically changes the appearance of the device.

Primary activation and pairing with a smartphone

The process of starting to use the Xiaomi Mi Band 4 begins long before you put it on your wrist. Unlike a regular watch, it requires a digital binding. First, you need to remove the tracker from the charging capsule by removing the protective film from the contacts on the bottom, which is a critical point, since even the microscopic residue of the film can disrupt the contact when charging.

Next, download the official Mi Fit app from the App Store or Google Play. After registering an account or logging into an existing Mi Account profile, go to the Profile section and select Add Device. The system asks you to turn on Bluetooth and GPS on your phone. Geolocation is necessary for the correct operation of tracking routes during walks and runs.

When the app finds the bracelet, the confirmation code will appear on the screen of the smartphone, it must be entered by checking with the tracker display. Once successfully paired, the device will prompt you to update the firmware. Never ignore this step, as new versions of the software often contain sensor error corrections and new features.

There is a nuance with access rights. In order for notifications to work in the background on Android, you need to give the application all the permissions you need, including access to contacts, SMS and phone, without which messages may be delayed or not displayed at all.

⚠️ Warning: The bracelet may be discharged when it is first turned on. If it does not respond to touch, set it on charge at the end of the battery. 15-20 minutes before attempting to pair.

The synchronization process takes a little time, but it keeps all components running smoothly in the future, and once you've finished setting up the home screen, you'll see the current time, date and battery level.

Interface and navigation on the tracker menu

The Mi Band 4 is controlled via a capacitive touch screen and a single physical touch button area under the display. The main menu is a vertical list of widgets. Swipes are used to switch between them up and down. A swipe to the left or right usually returns to the home screen or opens up additional options for a particular widget.

The main screen displays time. A short touch in the center of the screen includes backlighting, a long one opens the menu for selecting exercise modes. It's a convenient feature that allows you to quickly start the activity tracker without a long search in the list. You can change the behavior of the touches in the settings, for example, turn off the wake-up on the lift of the wrist to save energy.

At the top of the widget list is a status bar that displays weather, step level, heart rate and other real-time metrics, the bottom part is set aside for music control, alarm clocks and device settings, and the menu structure is logical but addictive due to the lack of a physical scrolling button.

The brightness of the screen is adjusted automatically or manually through settings. To use the bracelet in the dark, it is better to set the minimum brightness or turn on the "Do not disturb" mode so that bright light does not interfere with sleep.

Health monitoring: pulse, sleep and activity

One of the main features of the Xiaomi Mi Band 4 is continuous monitoring of heart rate. The PPG sensor on the back reads blood flow through the wrist. To get accurate data, you need to fit the bracelet tightly but comfortably to the skin, about 2-3 centimeters from the wrist bone. Too weak fit leads to loss of signal, too strong leads to discomfort.

The tracker also analyzes the phases of sleep: deep, light and REM-Sleep analysis algorithms work automatically to detect when you fall asleep and wake up, but for the daytime sleep analysis function to work properly, it needs to be activated manually in the app, because it can be disabled by default to save life.

The step counter uses an accelerometer and a gyroscope. The device can distinguish walking from other hand movements, although there is still an error. To improve accuracy, it is recommended to periodically calibrate the length of the step in the user's profile, indicating your height and approximate step length when walking.

• 🏃‍♂️ Exercise modes: 6 sports modes available including running, swimming, cycling and walking.
• 💧 Waterproof: Class 5 ATM It allows you to swim in the pool at a depth of up to 50 meters.
• 📊 PAI-index: a personal activity measure that summarizes the workload for the week.

For serious heart problems, specialized equipment should be used.

Notifications and work with a smartphone

The Mi Band 4 can stream notifications from smartphone apps. You can see text messages from messengers, incoming calls, calendar reminders and system events. To do this, you need to go to the bracelet settings and activate the desired notification sources. Only the header and the beginning of the text are displayed on the bracelet screen, so you have to read long messages on the phone.

The music control feature allows you to switch tracks, pause or change volume (on some smartphones).This works through the standard Android or iOS media player interface. If the music is not controlled, check if the system blocks the background work of the player application.

There's a phone search feature. When you activate this item in the wristband menu, the smartphone starts to emit a loud signal, which helps you quickly find the device if it's lost at home, and there's also a feature that unlocks the smartphone screen (not all phone models) when the wristband is nearby.

⚠️ Note: Notifications in Russian may not appear correctly on older versions of firmware. Make sure that the bracelet settings have the correct font and system language.

For iPhone users, notification functionality may be limited compared to Android due to iOS’ security policy, and in particular, it is impossible to quickly respond to messages directly from the wristband.

Dials and personalization of appearance

One of the favorite features of users is the ability to change dials. The built-in gallery offers a few dozen options, but the variety opens up with the use of third-party resources. You can set photos from the gallery or download thematic dials created by the community.

The process of installing a custom dial is simple: download a.watchface file, open it through the Mi Fit app or third-party ulites (like Notify for Mi Band), and follow the instructions. The bracelet will automatically go into update mode.

Be careful with the choice of overly complex and heavy dials with high detail and animation, which can consume more battery power and cause micro-twitching interface on old hardware.

In addition to visual style, dials can display different information: only time, time with date, or extended data about weather and activity. Choosing the optimal dial is a balance between aesthetics and functionality.

Comparison of characteristics with competitors

To understand the Mi Band 4’s place in the wearable electronics category, it’s useful to compare its key parameters with its peers and newer models, which will help assess the relevance of the device.

As can be seen from the table, Xiaomi Mi Band 4 became iconic thanks to a high-quality color screen and an improved sensor, while maintaining an affordable price. NFC-In some versions (Chinese version) the module adds contactless payment functionality, although in the global version this feature is often absent or works only with local payment systems.

Compared to the third generation, the fourth received a significantly more responsive interface, and the delays in switching menus almost disappeared, making it enjoyable to use the device.

Problems, maintenance and extension of service life

Despite its reliability, the device requires maintenance. A TPU strap can accumulate sweat and dirt, causing skin irritation, and it is recommended to wash the strap regularly with warm water and soap and dry before putting on.

The 135 mAh battery can last up to 20 days normally, but the activation of constant pulse monitoring, notifications and a bright screen reduces this time to 7-10 days. The charging uses a special cable dock that needs to be inserted into the bottom of the capsule. Contacts can oxidize, so they should be periodically wiped with alcohol.

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If the bracelet has stopped charging, try to wipe the contacts on the capsule and charger with an alcohol napkin, and then rub them a little with a wiper to remove oxides.

A common problem is time desynchronization or disconnection, in which case the bracelet is completely reset via the settings menu (at the bottom of the list) and re-pairing, and it is worth checking whether the phone is too far from the bracelet when trying to sync.

If the sensor is no longer responsive to touch, it may be contaminated or wet, and in rare cases, a hard reboot is required by charging.

⚠️ Warning: Do not use the bracelet in a sauna or in temperatures above 45 degrees Celsius.High temperature can damage the battery and screen adhesives.

Frequently Asked Questions (FAQ)

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Regular cleaning of charging contacts and firmware updates are the main conditions for a long and stable operation of your Xiaomi Mi Band 4.