Modern wearables, such as the Mi Smart Band activity trackers, have become an integral part of many users’ lives, but often, after a purchase, a full discharge or a long pause in use, the screen displays incorrect time, and this is not just a minor nuisance, because the accuracy of data is critical for the correct tracking of sleep, steps and notifications.
Unlike classic wristwatches, where time is set mechanically or through a complex menu interface, Xiaomi and Redmi smart wristbands work on the principle of synchronization. This means that the main source of time stamps for them is your smartphone. If you notice a discrepancy, there was likely a failure in the connection between the devices or in the settings of the application itself.
In this article, we will take a closer look at the algorithm that will help you quickly bring your gadget into working order. We will look at the Mi Fitness application (formerly known as Zepp Life), the features of manual control in some models and how to solve typical problems with desynchronization.
Principle of automatic synchronization
A fundamental feature of Xiaomi’s ecosystem is that it doesn’t have to manually enter hours and minutes on the device itself. Automatic synchronization is the main mechanism that is used by default. Once the activity tracker connects to the smartphone via Bluetooth, it requests up-to-date time and date data from the mobile phone system.
The data transfer process is almost instantaneous when you open an app, the moment you run Mi Fitness or Zepp Life, there is a background exchange of data packets, if your phone is running the right time zone and the exact time, the bracelet will instantly update its readings, which is especially convenient when you switch to winter or summer time, when manual adjustment is not required at all.
However, for this feature to work, several conditions must be met: first, all necessary access rights for the application must be allowed on the smartphone, including geolocation and Bluetooth. Second, the bracelet itself must be paired with the phone you consider the reference time on. If you use multiple devices, priority will be given to the last connected gadget.
⚠️ Warning: If the bracelet time still shows the wrong value after you connect, try restarting your smartphone.This will update the system time services and force you to re-synchronize with the wearable device.
It’s important to understand that some low-end trackers don’t have a built-in GPS module or the ability to connect to Wi-Fi on their own. For them, the phone is the only window to the world. Without a regular connection to the app on the smartphone, such devices may start to lag behind, as their internal quartz clocks tend to give a small error per day.
Setup via Mi Fitness and Zepp Life
Xiaomi uses two main applications to manage your activity tracker, depending on the device model and year of release. Newer models such as the Mi Band 7, Mi Band 8 and the Watch S1 require the installation of the Mi Fitness app. Older versions, including the Mi Band 6 and below, traditionally work with the Zepp Life application (formerly Mi Fit), and the time setting interface is almost identical in them, because it is based on a single algorithm.
To initiate the time update, do the following: Open the app on your smartphone and wait for the main page with the activity pie chart to appear. At this point, the connection is checked. If the bracelet is displayed as "Connected", the synchronization has already started. There is no separate "Set Time" button in the application interface, since this process is fully automated by developers to simplify the user experience.
Sometimes users are faced with a situation where the app shows the right time and the wrist it is different, in which case you need to check the settings of the application itself. Go to the Profile section, select your device and find the "Device settings" option, which may have an option to manually update or reset the connection, which will force the clock reconciliation procedure.
For owners of devices that support AOD (Always On Display), time accuracy is critical, because the dial is visible all the time. A few minutes error on such a screen is immediately noticeable. Therefore, it is recommended to open the companion app at least once a day to make sure that the background service has not been stopped by the Android system to save energy.
And regional features are also worth mentioning: If you buy a device that's designed for the Chinese market and you use it with a global version of the app, there can be rare synchronization conflicts, and in these cases, re-binding the device helps: removing the bracelet from the list in the app and adding it again as a new gadget.
Manual installation and time format
While automatic mode is the main one, some scenarios may require manual intervention or a change in display format, such as if you are traveling and do not want to change the time zone on the main smartphone, or if you are more familiar with the 12-hour format instead of the 24-hour one, these settings are set up exclusively through the application's software interface, since on the tracker itself the menu is often limited to basic features.
To change the format of the time, you need to go to the dial settings or the general settings of the device in the application. There you will find the "24-hour format" switch, activating it instantly changes the display on the bracelet screen. This applies not only to the time, but also to the format of the date, which can be important for users who are used to the American (MM/DDD/GYGYG) or European (DD/MM/GYGYGY) style of writing.
In the rare cases where automatic synchronization fails due to software errors, some users resort to a trick: they temporarily change the time on the smartphone to an arbitrary one (for example, 5 minutes ahead), wait for synchronization, and then return the correct time on the phone, this action forcibly shakes up the connection and causes the bracelet to take new time stamps.
| Parameter | Where to set up | Impact on work |
|---|---|---|
| Time format | Annex (Dial settings) | 12h or 24h display |
| Time zone | System settings of the phone | Correct travel time |
| Synchronization | Automatically when you open the application | Accuracy of sleep and activity data |
| Date. | Synchronizes with the phone | Correctness of statistics by day |
Remember that any changes to the format settings will only take effect after the data is transferred successfully. If you have changed the setting in the application but have not opened the main page for synchronization, the old value will remain on the bracelet. Make sure that the connection indicator in the application is lit in green or blue, confirming an active session.
Solving problems with desynchronization
When time on the watch is constantly running away or lagging behind, there can be a number of technical reasons: most often, the problem lies not in the Xiaomi device itself, but in the smartphone’s energy saving settings. Aggressive algorithms Android and iOS can “kill” the background process of the application, preventing it from updating the data on the wristband during the day.
To fix this problem, you need to go to your phone's battery settings, search Mi Fitness or Zepp Life and set "No Limits" or "No Limits" mode, which will allow the app to maintain a background connection to the tracker and adjust the time regularly, even if the phone's screen is off.
Another common cause is Bluetooth connection conflict: If your phone has previously been paired with other devices, or if your old bracelet profile is getting stuck in the Bluetooth list, synchronization may not work, it is recommended to remove the device from the list of paired in the Bluetooth phone settings, and then pair it again through the application interface.
☑️ Diagnosing problems with time
Also worth paying attention to is the firmware version of the tracker itself: outdated software may contain errors that affect the system timer. The application often displays a notification about the availability of the update. Installing a new version of firmware often fixes bugs associated with loss of connection and time reset.
⚠️ Before resetting the bracelet to factory settings, make sure all important workout data is synced to the cloud, otherwise activity history may be lost without recovery.
Features of different models Mi Band and Watch
Xiaomi’s ecosystem has dozens of wearables, and each has its own nuances. Older models like the Mi Band 2 or 3 depended entirely on the phone being around, while new models like the Mi Band 7 Pro or the Redmi Watch 3 have built-in GPS and more powerful processors that allow them to keep accurate time longer even without the phone, but the principle of initial setup remains the same for everyone.
Devices with the Wear OS operating system (such as the Xiaomi Watch 2) work differently: they are full-fledged computers on the wrist and synchronize time through Google services, making them independent of a particular companion application after initial setup. However, for initial activation and time zone setting, using a smartphone with the Xiaomi Wear application will still be required.
It is important to consider the compatibility of application versions. For Mi Band 8 and later, the Zepp Life application may not support full functionality or work with time in full, requiring a transition to Mi Fitness. Ignoring this requirement can lead to the device operating in a limited functionality mode, where time synchronization will be unstable.
Below is a table of compatibility of popular models and recommended applications for proper operation of time functions:
| Model of the device | Recommended annex | GPS support | Auto-time setting |
|---|---|---|---|
| Mi Band 4 / 5 / 6 | Zepp Life / Mi Fitness | No (Connected GPS) | Yes. |
| Mi Band 7 / 8 / 9 | Mi Fitness | No (Connected GPS) | Yes. |
| Redmi Watch 3 / 4 | Mi Fitness | Built-in GPS | Yes. |
| Xiaomi Watch S1 / S3 | Mi Fitness | Built-in GPS | Yes. |
What to do if the model is not defined?
Prevention and additional advice
To avoid problems with setting time in the future, you should follow simple rules of operation: regularly wear a bracelet with a charged phone, so that the synchronization happens automatically. If you plan a long trip to another time zone, just change the time zone on your smartphone before departure or immediately upon arrival - the bracelet will update itself.
Keep an eye on the Bluetooth module. Turning on and off the "flight mode" on your phone can temporarily break communication, but it usually resets automatically. However, if you fly often, you should open the app after you turn off the flight mode to make sure that the time on the clock is correctly updated after the zone change.
💡
If you reset the bracelet to factory settings, time will be lost to default (often 00:00 or 2016). That's OK. Immediately after reset, open the re-synchronization app.
It’s also helpful to know that bright screen light or certain dials may consume more energy, which indirectly affects the timing frequency to save charge. If you notice that time is getting more confused, try changing the dial to a simpler one or reducing the brightness of the backlight.
💡
The key to stable operation is to allow the application to run in the background without battery constraints, which solves 90% of the time-dissynchronization problems.
Compliance with these guidelines will allow your Xiaomi fitness tracker to always show the exact time, ensuring that all smart functions, from alarm clock to heart rate monitoring, work correctly. Remember that a smartwatch is an extension of your smartphone, and its proper setting begins with a competent phone configuration.