Proper display of time on the fitness tracker is a basic feature without which the use of the gadget loses meaning. Owners of Xiaomi Mi Band 4 often face a situation where the watch shows incorrect data or lags behind for several hours. This can happen for various reasons, ranging from a failure of the Bluetooth connection to incorrect time zone settings in the application.
Unlike classic mechanical watches, the Mi Band 4 smart wristbands don’t have a time-sensitive system to run on for long periods of time, relying entirely on regular synchronization with your smartphone. If you notice a discrepancy, don’t panic — 99% of the time, the problem is solved by software without going to the service center.
In this article, we will look at all possible setting scenarios in detail, including standard pairing procedures, manual adjustments through Android and iOS settings, and forced synchronization techniques, and time accuracy is critical for proper alarm clocks, timers, and sleep phase tracking.
The principle of synchronization of time
Understanding how exactly the Mi Band 4 receives time data will help avoid many mistakes: The bracelet does not have a built-in GPS module or cellular communication to independently determine the time via satellites or towers. All information comes exclusively from the connected smartphone via Bluetooth Low Energy (BLE) protocol.
The data transfer process takes place in the background. When you open the Mi Fit (or Zepp) app, the handshakes of the devices occur, and the watch gets the current timestamp. However, if the application was closed by the system to save battery power, the synchronization may not happen in time.
- 🔄 Automatic synchronization occurs when a companion application is opened.
- 📡 Data transfer requires an active Bluetooth connection within a 10-meter radius.
- 📱 The smartphone should have correct time and date settings (preferably automatic).
- ⚡ Operating system energy saving can block background data transmission.
Importantly, the tracker itself cannot switch to daylight saving time or change time zones when moving to another country without the phone.The critical point is that the Mi Band 4 does not have its own battery to store time settings when the main battery is completely drained. If the device is completely dead, after charging it will reset the time to factory values (usually 00:00 2016) until the first synchronization.
Basic setup through the Mi Fit app
The main and most reliable way to set the right time is to use the official Mi Fit app. This software acts as a bridge between your phone’s operating system and the bracelet firmware. Before starting the procedure, make sure you have the latest version of the app installed from Google Play or the App Store.
The setup process is intuitive, but requires a sequence of actions, first you need to make sure that the bracelet is paired and displayed in the list of devices as "Connected." If the status "Disabled", no time settings will apply.
☑️ Checking before synchronization
Once you start the app, go to the device profile, and it shows all the basic information. If the time on the wristband is different from the time on the phone, just pull the app screen down to update. Forced synchronization initiates the exchange of data packets, including the current time zone.
⚠️ Note: If after updating the page in the application, the time on the bracelet has not changed, try restarting Bluetooth on your smartphone (turn off and on) and repeat the procedure.
Sometimes it happens that the app shows the time correctly, but on the bracelet it stays old. In this case, re-pairing can help. Do not remove the device from the Bluetooth list in the phone settings, use only the Unbind function inside the Mi Fit application itself. After untie, search again and connect the device as new.
Solving time zone problems
One of the most common reasons why Xiaomi Mi Band 4 is running out of time is time zone conflict, which is especially true for those traveling, or if the phone’s settings have an automatic belt selection that doesn’t work properly in roaming.
If your smartphone is set to GMT+3 (Moscow) and the Mi Fit app somehow thinks you are in GMT+2, the clock will display a time lag of one hour, and checking these settings should be the first step in diagnosis.
| Situation | Action on a smartphone | The result is Mi Band 4 |
|---|---|---|
| Automatic belt | Insert "Use network time" | Time is synchronized automatically |
| Manual setting | Select the city manually in the settings | Time is fixed for the selected city |
| Change of region | Wait for geolocation updates | Time will change with delay |
| Conflict of applications | Check the settings in Mi Fit separately | Manual adjustment required |
Mi Fit also has its own profile settings that can override the phone's system settings. Go to Profile → Settings → Time Zone (if available in your version) and make sure it ticks Automatically or selects the right city. Time bias often arises precisely because of the desynchronization of these two setting levels.
Why is time exactly 1 hour behind?
If you are traveling, the best advice is to set the phone to automatically determine the time over the network before departure, and when landing in another country, the smartphone will receive data from local towers and transmit it to the Mi Band 4 at the first synchronization.
Android and iOS settings for stable operation
The operating systems of modern smartphones aggressively manage power consumption, which often leads to a stop of background processes of the Mi Fit application. If the application “sleeps up”, it will not be able to transmit a signal about the change of time to the bracelet. For Android owners, it is critical to set up exceptions in the energy saving system.
You need to find the Battery or Applications section in your phone settings, find the Mi Fit and allow auto-start, background and no restrictions. On Xiaomi and Huawei devices, this requirement is particularly strict - without explicit permission, the system can kill the synchronization process.
- 🔋 Turn off energy savings for the Mi Fit app.
- 🔓 Allow auto-start and work in the background.
- 📍 Permit access to geolocation (for precise belt definition).
- 🔔 Make sure notifications from the app are not blocked.
For iOS users, the situation is simpler, but it also requires attention: In the privacy settings, you need to allow the application to access Bluetooth and, preferably, to the geo-position (in “When using” mode). If you prevent background updates to content for Mi Fit, time synchronization will only occur when you open the application.
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Use the “Lock in RAM” function for the Mi Fit application in the menu of running Android tasks so that the system does not close it when cleaning the memory.
Also check system time. Go to Settings → Date and time. Make sure that the option "Use network time" or "Automatically" is enabled. If you manually set the time on the phone with an error, the bracelet dutifully copies this error.
Forced discharge and reconnection
When standard methods fail and time on the Mi Band 4 continues to "swim" or show incorrect data, a more radical approach is required. A complete reset of the bracelet settings often eliminates software bugs that may have accumulated during operation.
To perform the reset, you don't have to look for a thin needle for the Reset button. The Mi Fit app itself has a detachment function that initiates a complete reset of the tracker settings, and then the bracelet will return to the "out of the box" state and require re-pairing.
Sequence of actions for discharge:
1. Open Mi Fit.
2. Go to Profile.
3. Select Mi Band 4.
4.Push "Untie" (Unbind)).
5. Confirm action.Once you do this, the bracelet will reboot, you'll need to add it to the app again, and in the initial setup, the timing will automatically synchronize, and it'll be most accurate, because it's the first data packet that the device receives.
⚠️ Warning: When uncoupling the device, all accumulated step and sleep data that has not yet been sent to the server may be lost. Before reset, open the application and wait for full history synchronization.
If that didn’t work, you can try to remove the Mi Fit app completely, restart your smartphone, install the app again and plug in the bracelet, and this is guaranteed to clear up all cached data and settings that may have conflicted with the current firmware version.
Frequent errors and their elimination
Even experienced users sometimes encounter unusual situations, such as time being lost immediately after updating the bracelet firmware, at which point the device overwrites system files, and a temporary crash of a real-time clock is the norm until the first successful synchronization.
Another problem is the 12/24-hour formats being out of sync, and if the phone is 24-hour and the bracelet is 12-hour (AM/PM), this can be confusing, although the technical timing is correct. The time format setting is usually automatic, but sometimes requires manual intervention in the profile settings.
- 📉 A quick discharge after a time reset may indicate a software failure.
- 📶 Weak Bluetooth signal interrupts time packet transmission.
- 📅 Date error (incorrect year or month) is treated with a complete reset only.
- 🌐 Changing the region in the Mi Fit app can reset the time settings.
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If none of the software methods help, it may be a hardware problem – the internal battery storage settings have gone down or the Bluetooth module has been damaged.
Also consider the firmware version. Outdated software may contain bugs patched in new versions. Regularly check for updates in the application. However, if you just updated and time went wrong, this is a known bug of some versions, which is often solved by waiting for a patch to come out or rolling back to the previous version (if possible).