Prepare, pair, sync, and configure the Xiaomi Mi Smart Band 4 for daily use. Complete the initial connection and updates before fine-tuning notifications, health tracking, display behavior, and reminders.
Before You Start
[checklist] * Mi Smart Band 4 capsule and strap are ready * Mi Band 4 charging cable or charging accessory is available * Phone Bluetooth is enabled * Internet connection is available for account sign-in, synchronization, and possible updates * Band has at least about 30–50% battery before pairing * Older phones have current system components and app updates where available [/checklist] [tip] If the band arrives nearly empty, charge it before pairing. Initial synchronization may include firmware or resource updates that are better completed with sufficient battery. [/tip]Assemble the Band
Check the Capsule and Strap
- Check the display surface for dust or any protective film.
- Make sure the strap opening is clean and is not visibly torn.
Insert the Capsule
- Align the capsule so the display faces outward.
- Press it evenly into the strap opening.
- Confirm that it sits securely and does not wobble.
A capsule that is not fully seated can shift or come out when the strap catches on clothing.
First Charge
Connect the Charger
- Align the charger contacts with the contact area on the capsule.
- Make sure the connection is firm and correctly positioned.
- Use a stable USB power source and avoid an unreliable or weak USB hub.
- Check the display for a charging indication after connecting it.
If the screen does not respond, reseat the band in the charger and check the contact points. If the battery was nearly empty, leave it charging for about 15–20 minutes before beginning setup.
Choose the Companion App
Mi Smart Band 4 uses a companion fitness app for pairing, synchronization, notifications, watch faces, and device settings. Depending on app availability and region, you may encounter the Mi Fit / Zepp Life naming or other Xiaomi fitness app listings.
[reference] Title: Companion App Text: Use one app that recognizes Mi Smart Band 4 and complete the device binding inside that app. Title: Account Text: Sign in before pairing so synchronization and account-based settings can be associated with the same profile. Title: One App at a Time Text: Avoid managing the band through multiple companion apps at the same time because this can create conflicting device bindings or synchronization behavior. [/reference]Install or update the selected companion app before starting the pairing process.
Prepare Your Account
Complete the basic account setup before adding the band.
- Sign in to the companion app.
- Confirm that your profile page loads correctly.
- Set the region if the app requests it.
- Use the same account consistently if you want synchronized activity history and settings to remain associated with your profile.
Android Permissions
The companion app needs access to the phone features used for Bluetooth discovery, synchronization, and alerts. The exact permission prompts depend on the Android version.
- Bluetooth: Keep Bluetooth enabled during setup.
- Nearby devices: Allow this when Android requests permission to discover or connect to nearby Bluetooth devices.
- Location: Some Android versions or app versions may request Location access during Bluetooth discovery.
- Notifications: Allow notification access if you plan to receive calls, messages, or app alerts on the band.
- Background activity: Allow the companion app to continue operating when it is not on screen if synchronization or notification delivery depends on it.
- Battery optimization: If background synchronization is unreliable, check whether Android is heavily restricting the companion app and use an appropriate unrestricted or non-optimized setting when needed.
Permissions can be reviewed again after the initial setup. Keep only the access required for the features you use.
Pair the Mi Smart Band 4
[warning] Start pairing from the companion app rather than manually pairing the band first from the Android Bluetooth device list. The app needs to complete the device-binding process. [/warning] [step] 1. Open the companion app and sign in. 2. Open the option to add a device or add a band. 3. Select the band category and choose Mi Smart Band 4 or Mi Band 4 when shown. 4. Keep the band close to the phone while the app searches for it. 5. Wait for the pairing request to appear. 6. Confirm the request on the band when prompted. 7. If the phone displays an additional pairing confirmation or matching code, review it and approve the connection as requested. [/step] [tip] During the first pairing, keep the companion app open, avoid switching to another app, and keep the phone screen active until the binding process completes. [/tip]First Sync and Updates
After pairing, allow the first synchronization to finish before changing many settings. The app may transfer several types of data to the band, including:
- Device firmware updates
- Resource files such as fonts, icons, or language data
- Watch-face resources
An interrupted update can leave text or menu resources incomplete or require another synchronization before the band behaves normally.
[dosdonts] Do: Keep the phone close to the band during the update Do: Keep the companion app in the foreground while an update is in progress Do: Start updates with sufficient band battery Do: Temporarily disable aggressive phone battery-saving behavior if it interrupts the app Dont: Move the phone far away while files are being transferred Dont: Close the companion app during an active update Dont: Use several other Bluetooth devices heavily during the initial transfer if the connection becomes unstable Dont: Change multiple band settings while an update progress screen is still active [/dosdonts]Profile Settings
Enter accurate profile information when the companion app requests it. These values can affect activity estimates and how your daily data is presented.
- Height
- Weight
- Age or other requested profile details
- Daily activity or step goal
- Metric or imperial units
Correct height and weight are especially useful for distance and activity estimates.
Time, Language, and Region
Time and Date
The band synchronizes its time with the phone. Check the phone before the first full sync:
- Use automatic date and time if appropriate.
- Use the correct time zone.
An incorrect phone clock can also shift workout timestamps and sleep records.
Language
Language resources can depend on the phone, companion app, region, and resources transferred to the band.
- Complete any pending resource update.
- Sync the band again after changing language settings.
- Keep app language and region settings consistent when possible.
If text initially appears incomplete or unusual, finish the pending synchronization before changing other settings.
Display Setup
Brightness
Start with a middle brightness level, then adjust it after using the band indoors and outdoors.
- Lower brightness can reduce power use indoors.
- Higher brightness can improve outdoor readability.
- Increase or decrease the level based on readability and the battery behavior you observe.
Screen Timeout
A shorter screen-on period reduces unnecessary display use and accidental wake time.
Wake Behavior
[compare] Raise-to-wake | Convenient for checking the display with a wrist movement, but frequent arm movement can wake the screen more often Tap-to-wake | More intentional and can reduce unnecessary screen wake-ups [/compare]A practical starting point is to enable raise-to-wake and use it for a day. If the display wakes too often, use a schedule where available or rely more on tap-to-wake.
Notifications
Configure notifications selectively rather than forwarding every phone alert to the band.
Allow Notification Access
Grant the companion app the notification access required to forward alerts from the phone.
Start with Essential Alerts
- Incoming calls
- Your primary messaging app
- Calendar reminders if you use them regularly
Too many enabled apps can produce frequent vibration, increase power use, and make important alerts easier to overlook. Add more notification sources only when they are useful.
Heart Rate Settings
Mi Smart Band 4 can be used for manual heart-rate checks and, depending on the selected settings, background monitoring.
- Keep manual measurement available for on-demand readings.
- If you want daily trends, choose a moderate automatic monitoring interval instead of immediately selecting the most frequent option.
- If sleep-assistant options are available, consider establishing a few nights of normal use before changing additional sleep-related monitoring settings.
- Less frequent automatic monitoring generally places less demand on the battery.
- Use workout tracking during exercise when you want activity-specific heart-rate information.
Sleep Tracking
Stable skin contact helps the band collect more consistent overnight sensor data.
- Wear the band snugly but comfortably.
- Keep the sensor area clean.
- Avoid wearing the strap so loosely that the sensor repeatedly lifts away from the skin.
- If the band moves significantly while you sleep, adjust the fit slightly rather than overtightening it.
Alarms, Reminders, and Goals
Configure only the reminders you expect to use.
- Set one wrist alarm first and test its vibration.
- Add hydration or similar reminders only if that option is available and useful to you.
- Configure the sedentary or idle reminder at a reasonable schedule.
- Set a daily activity goal that matches your normal routine.
Starting with fewer reminders makes it easier to decide which alerts are actually useful before adding more.
Watch Faces
For the first setup, prioritize readability over decoration.
- Choose a face that clearly shows the time and date.
- Keep battery level visible while you learn the band's normal charging pattern.
- Add step or heart-rate information if those are useful to you.
- Avoid an overly busy design if it makes quick reading harder or appears less responsive.
After pairing and synchronization are stable, you can experiment with other available watch faces.
Wear the Band Correctly
Daily Wear
- Position the band roughly one finger above the wrist bone.
- Fasten it firmly enough that it does not slide around during normal movement.
- Keep the fit comfortable rather than excessively tight.
During Workouts
- A slightly more secure fit can reduce movement during exercise.
- Keep the optical sensor in steady contact with the skin.
Wearing the sensor directly on the wrist bone or leaving the band very loose can increase movement and reduce the consistency of heart-rate readings.
Final Setup Check
[checklist] * Band appears connected in the companion app * Manual synchronization completes * Band time matches the phone * Display text and language appear normally * Incoming call alert has been tested * One message notification has been tested * Step count responds after a short walk * Manual heart-rate measurement can be started * Charger makes consistent contact * Battery percentage increases while charging [/checklist]Switching Phones Later
Keeping the device binding organized makes a future phone change easier.
- Keep access to the companion-app account used with the band.
- Avoid binding the band through several companion apps at the same time.
- When moving to another phone, disconnect or unbind the band through the companion app when the app requires it before starting a new binding.
- Use the same account when you want previously synchronized data to remain associated with your profile, where the app supports account synchronization.
Basic Setup Checks
[troubleshoot] Problem: The band does not appear during the device scan Cause: Bluetooth discovery may be restricted, a required Android permission may be unavailable, or the band may be too far from the phone Fix: Keep Bluetooth enabled, allow the required Nearby devices or Location permission when requested, keep the band awake and close to the phone, and start the scan again Problem: The pairing request appears but does not complete Cause: A previous Bluetooth entry or an incomplete earlier pairing attempt may interfere with the new binding Fix: Stop the current attempt, remove an old Mi Band entry from Android Bluetooth settings if one exists, then begin pairing again from the companion app; restart the phone if Bluetooth remains unresponsive Problem: Initial synchronization or update stops progressing Cause: Low band battery, background restrictions, distance between the devices, or Bluetooth activity from other devices can interrupt the transfer Fix: Charge the band sufficiently, keep the phone nearby, keep the companion app in the foreground, reduce other Bluetooth activity, and retry the normal synchronization after restarting the devices if needed [/troubleshoot]Once pairing, synchronization, time, language, notifications, tracking, and charging have been checked, the Mi Smart Band 4 is ready for normal daily use.