Mi Smart Band 4 receives weather information through its companion app on the phone. The phone obtains the weather data, then synchronizes it to the band over Bluetooth.
[reference] Title: Weather source Text: Weather data comes through the phone and companion app rather than directly from the band. Title: City selection Text: Weather can use automatic location or a manually selected city. Title: Temperature units Text: Celsius or Fahrenheit can be selected in the companion app. Title: Refresh Text: A manual app sync can update the weather data sent to the band. [/reference]Weather freshness and accuracy can depend on the selected city, phone location settings, internet access, Bluetooth connection, companion-app permissions, and whether the app can continue working in the background.
Before Setup
[checklist] * Mi Smart Band 4 is paired with the compatible companion app * Bluetooth is enabled and the band can synchronize * The phone has an active Wi-Fi or mobile-data connection * Phone location is enabled when using automatic city detection * The companion app has the permissions needed for the selected weather mode * Background restrictions are not preventing normal synchronization [/checklist] [note] Menu names can differ between Mi Fit, Zepp Life, compatible app versions, Android versions, and regions. Look for the Mi Smart Band 4 device page and its weather settings. [/note]Weather Setup on Android
Connect and Sync
[step] 1. Open the companion app on the Android phone. 2. Open the device page for Mi Smart Band 4. 3. Confirm that the band is connected. 4. Start a manual synchronization if the app provides that option. 5. Wait for synchronization to complete before checking weather on the band. [/step]If the phone and band frequently disconnect, weather information may remain at the last successfully synchronized value.
Enable Weather
Open the weather-related setting for the band. Depending on the app version, it may appear as Weather, Weather settings, Display settings, or a similar device setting.
Available weather information can include:
- Current temperature
- Weather condition or icon
- Daily high and low temperatures
- Forecast information when supported
- Celsius or Fahrenheit
Weather may be available from the dedicated weather screen on the band. Some app or watch-face configurations may also show a smaller weather summary elsewhere.
Automatic or Manual City
[compare] Automatic location | Uses the phone's location to determine the current area. It is useful when moving between cities, but depends on location access and current phone location data. Manual location | Keeps weather tied to the city selected in the companion app. It can provide a more consistent reference when automatic detection changes between nearby areas. [/compare]Manual city selection can be useful when the phone repeatedly identifies a nearby town, district, or reporting area instead of the location you expect.
Permissions and Background Access
Location Access
Automatic weather location depends on the phone being able to determine the current area. If the companion app cannot access location when required, automatic city detection may be unavailable, blank, outdated, or based on an older location.
For automatic location:
- Enable phone location.
- Allow the companion app the location access required by its weather feature.
- If Android offers approximate and precise location choices, precise location can help when automatic city selection is too broad.
- Background location behavior may vary by Android and companion-app version.
If you prefer a fixed location, select a city manually where the app allows it. Permission requirements can still vary by app and Android version, so only enable the access needed for the features you use.
Background Activity
The companion app needs opportunities to synchronize with the band. If Android frequently suspends the app, weather can remain unchanged until the app is opened again.
If background weather updates are inconsistent, review the controls available on the phone:
- Battery optimization or battery usage for the companion app
- Background activity permission
- Background mobile data when Data Saver is enabled
- Autostart on phones that provide an autostart control
- App locking or pinning in recent apps on Android interfaces that use this feature
Units and Regional Settings
Celsius or Fahrenheit
Select the preferred temperature unit in the companion app, then allow the band to synchronize.
[step] 1. Change the temperature unit in weather settings. 2. Synchronize Mi Smart Band 4. 3. Check the weather screen on the band. 4. If the old unit remains, reconnect or restart the band if appropriate, then synchronize again. [/step]Date, Time, and Time Zone
Daily forecast timing can appear out of sequence if the phone has an incorrect date, time, or time zone.
For normal daily weather timing, use the phone's automatic date, time, and time-zone settings when appropriate. This is especially useful after travelling between time zones.
Improve Weather Accuracy
Use a Stable City
Automatic positioning can sometimes select a nearby town, district, or reporting area. If the displayed location changes unexpectedly, manual city selection provides a fixed reference.
This can reduce:
- Unexpected city-name changes
- Temperature differences caused by another reporting area
- Forecast changes caused by switching between nearby locations
Use Precise Location for Automatic Weather
When Android provides a precise-location option, enabling it for the companion app can improve automatic city selection. Approximate location may identify a broader area, particularly indoors or where network-based location is less precise.
Sync Before You Rely on the Reading
If weather freshness is important for the day, open the companion app and let the band finish synchronizing before checking the weather screen.
[tip] A brief sync after the phone has an internet connection can refresh both the selected city and the latest weather data before you rely on the band. [/tip]Allow for Local Weather Differences
A small temperature difference between the band and conditions immediately around you does not always mean the band is incorrect. Weather services can use reporting points that are some distance from your exact location.
Differences are more noticeable between:
- Coastal and inland areas
- High-rise districts and open areas
- Hills and lower terrain
- Airport weather stations and nearby residential areas
If the displayed values regularly represent a different nearby area, check the city selection and consider choosing a more suitable city manually.
Expect Update Intervals
The Mi Smart Band 4 weather display is synchronized information rather than a minute-by-minute sensor reading. A sudden rain shower or temperature change can occur before the next phone-to-band weather update.
For a fresher reading:
- Make sure the phone has internet access.
- Keep Bluetooth connected.
- Open the companion app and allow synchronization to finish.
- Check that background restrictions are not preventing normal updates.
Refresh Weather Now
[step] 1. Confirm that the phone has Wi-Fi or mobile-data access. 2. Open the companion app and the Mi Smart Band 4 device page. 3. Keep the band close enough for a stable Bluetooth connection. 4. Start a manual synchronization if available. 5. Open the weather settings or weather area in the app if needed. 6. Check the weather screen on the band after synchronization. [/step]If the new data still does not appear, briefly reconnect Bluetooth and repeat the synchronization. A persistent connection problem can prevent updated weather from reaching the band.
Common Weather Checks
[troubleshoot] Problem: Weather shows blank values or dashes Cause: Weather may not be enabled, the phone may be offline, location access may be unavailable for automatic city selection, or the band may not have synchronized recently Fix: Check weather settings, phone internet access, required permissions, Bluetooth connection, and run a manual synchronization Problem: The displayed city is not the expected location Cause: Automatic positioning may be using an approximate, cached, or nearby location; network conditions or routing can also affect some app-side location results Fix: Refresh phone location and synchronize again, enable precise location when appropriate, or select the city manually Problem: Weather changes only after opening the companion app Cause: Android may be limiting the app's background activity, background data, or autostart behavior Fix: Review the app's battery and background settings, allow the needed background data, enable autostart where available, and synchronize again Problem: The temperature unit returns to the previous setting Cause: The unit change may not have synchronized fully, or app region and language settings may affect the displayed preference Fix: Select Celsius or Fahrenheit again, complete a synchronization, and check the region settings if the behavior continues Problem: Current temperature looks reasonable but the forecast differs from another service Cause: The selected city, weather provider, reporting station, or forecast model may be different Fix: Confirm the selected city, refresh the weather data, and compare forecasts with the understanding that forecasts can change during the day [/troubleshoot]Weather While Travelling
Automatic location is useful when moving between cities, but it relies on the phone having location access, data connectivity, and an active connection to the band.
After arriving in a new area:
- Open the companion app.
- Allow the band to synchronize.
- Confirm that the weather city changed as expected.
If automatic location continues to show the previous or wrong area, select the destination city manually for the trip and return to automatic location later if preferred.
Weather Screen and Watch Face
[compare] Dedicated weather screen | Better for checking weather details and confirming that the band received updated information. Watch-face weather summary | Convenient for a quick glance, but available information depends on the watch face and may show fewer details. [/compare]When checking whether synchronization succeeded, use the dedicated weather screen when available. A small watch-face value may not show enough information to identify an incorrect city or an older forecast.
Reliable Daily Setup
[checklist] * Bluetooth remains available for band synchronization * Phone internet access is available when new weather data is needed * Automatic location has the required location access * The correct city is selected when using manual mode * Companion-app background activity is not unnecessarily restricted * Background data is available when needed * Phone date, time, and time zone are correct * Celsius or Fahrenheit is set as preferred * The band has completed a recent synchronization [/checklist]When Automatic Location Is Inconsistent
If automatic location repeatedly switches between nearby places, manual city selection can provide a simpler and more consistent weather reference.
[dosdonts] Do: Select a nearby city that reasonably represents the area you use most Do: Synchronize the band after changing the city or temperature unit Do: Open the companion app when you need to confirm that weather is current Dont: Expect the band to obtain new online weather data without phone synchronization Dont: Assume a small temperature difference always means the weather feature is inaccurate Dont: Depend on minute-by-minute weather changes from the band display [/dosdonts]Mi Smart Band 4 weather is most reliable when the phone can obtain current weather information and periodically synchronize it to the connected band. City selection, permissions, background restrictions, connection state, and weather-provider differences can all affect what appears on the display.