Modern wearable gadgets require careful initial configuration for the correct operation of all functions. Xiaomi Watch S1 Active is no exception, as this smart accessory has a wide functionality that is revealed only after successful synchronization with a smartphone. The pairing process can seem difficult for beginners, but a clear adherence to the algorithm of actions avoids most typical errors.
Owners of Android and iOS devices may face various nuances when working with the Mi Fitness app, which acts as the main bridge between the watch and the phone. It is critical to install the Mi Fitness app, rather than the outdated Mi Wear or Zepp Life, since the S1 Active model is not supported by other Xiaomi platforms. Proper software installation is the foundation of stable notifications, health tracking and sports modes.
Next, we will discuss the detailed process of preparing, installing software and directly pairing devices, and will also address the issues of troubleshooting if the standard procedure was not successful the first time.
Preparatory stage before interface
Charge the Xiaomi Watch S1 Active to at least 20-30%, as the initial setup and firmware update process can require significant energy resources. Low battery power often leads to unstable connection or interruption of data recording during configuration.
On your smartphone, check for an active internet connection that you will need to download profiles and time-check. Make sure the Bluetooth module is on and visible to other devices. In some cases, especially on devices with aggressive battery optimization, it is worth temporarily turning off the power saving mode so that it does not block background search processes.
It is also recommended to clear the list of previously paired devices in Bluetooth settings if the watch has previously connected to another phone, which will eliminate addressing conflicts and allow you to create a clean connection without residual configuration files.
- 🔋 Charge your hours by at least 20% for stable work.
- 📶 Check the active internet connection on your smartphone.
- 🗑️ Remove Old Watch Records from Bluetooth List.
- 📱 Make sure that Android is no lower than 6.0 or iOS 12.0.
Ignoring the preparatory steps can result in the phone simply not seeing the accessory in the list of available devices.
Installation and configuration of the Mi Fitness application
The centerpiece of the ecosystem for this model is the Mi Fitness app (formerly known as Zepp Life in some regions, but for the first time ever, the model is a staple of the ecosystem. S1 Active need exactly Mi Fitness. You should download it exclusively from official stores: Google Play for Android or App Store for iOS. APK-Files can lead to malware installation or unstable synchronization operation.
Once installed, you need to sign up for Xiaomi Account or log in through Google, Apple or Facebook accounts, which is a requirement for cloud storage of health and activity data. Without authorization, the clock’s functionality will be severely limited, and you will not be able to save your workout history.
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When registering, select the region corresponding to yours. SIM-map or place of residence so that the servers operate with minimal delay and correctly display weather data.
During the initial launch, the application will request a number of permissions, including access to geolocation, notifications, telephone and background activity, and refusing to grant any of these permissions may result in the inoperability of specific functions, such as, GPS-Tracking or displaying Caller ID.
The interface is intuitive, but it is important to properly customize the user profile, and provide current height, weight and date of birth data, as these parameters are used to calculate calories and other health metrics.
The process of connecting to an Android smartphone
Owners of Android devices are lucky to have a wider integration of system functions. Launch the Mi Fitness app and go to the Devices tab or click the Add a new gadget button. QR-code or select a device from a list.
You'll see a pairing request on the watch screen, you'll press the confirmation button (usually ticked), and then the pairing code system will pop up on the smartphone screen, and make sure the codes on both screens match, and you'll confirm the action.
☑️ Connection checklist
Special attention should be paid to notification settings. In the app menu, find the "Application Notifications" section and activate the switches for the desired messengers (Telegram, WhatsApp, Viber). If you do not do this, the clock will only vibrate when incoming calls, ignoring messages.
⚠️ Attention: On smartphones Xiaomi (MIUI/HyperOS) You must manually allow the Mi Fitness application to autostart and work in the background, otherwise the system will “kill” the synchronization process to save energy.
To do this, go to your phone's settings, find the app in the installed list, open Activity Control, and select No Limits mode, which is a critical step for stable operation.
Instructions for iPhone owners (iOS)
Users of the Apple ecosystem can also fully use the Xiaomi Watch S1 Active, although the customization process has its own peculiarities. As with Android, you should start by downloading Mi Fitness from the App Store.
When iOS first launches, it will request permission to use Bluetooth and the LAN. Without permission to access the LAN, the watch will not be able to communicate with the app even if the Bluetooth connection is established, a common error that leads to a “Connected but no data” status.
Scanning process QR-But because of the limitations of the operating system, you can't respond to messages directly from the clock or use voice input. Notifications will come, but only in read mode.
It is important not to force the application to close via swipe up, as this can break the background connection. iOS strictly controls background activity, so trust in the application should be expressed in the system settings.
Compatibility and requirements table
To avoid compatibility issues, check the technical requirements. Not all older smartphone models can support full-feature watches, especially in the part of voice assistants and quick answers.
| Parameter | Android requirement | iOS requirement | Note |
|---|---|---|---|
| OS version | Android 6.0+ | iOS 12.0+ | Older versions are not supported. |
| Bluetooth | 4.0 LE and higher | 4.0 LE and higher | Necessary for a stable connection |
| Screen resolution | 720p and higher | Native. | For the correct display of dials |
| Memory (free) | 100MB | 100MB | To install software updates |
| Internet | Wi-Fi / 4G / 5G | Wi-Fi / 4G / 5G | Needed for the initial setup |
If your smartphone meets these requirements but the connection doesn’t happen, the problem is most likely software conflicts or the firmware version of the watch.
Update of firmware and calibration
Immediately after connecting the Xiaomi Watch S1 Active will likely offer to update the system software. It is strongly recommended (replaced with a direct instruction) to agree to this action. New firmware versions often contain corrections of Bluetooth stack bugs and improve the accuracy of pulse sensors.
The refresh process can take anywhere from 5 to 15 minutes, during which time the screen of the watch may go out and light up again, do not interrupt the process and hold the smartphone next to the watch.
What to do if the update is suspended?
Once you've upgraded, you should calibrate the pedometer, walk a known distance (e.g., 100 meters) and check the data, and you can manually adjust the step length in the app if the automatic calculation gives you a significant margin of error.
And this section also has dials that you can change directly from the app, downloading new designs from the cloud, and that personalizes the device to your style.
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Regular firmware updates are the only way to get new features and dials that Xiaomi adds after the fact.
Addressing common problems
Even if you follow all the instructions, you can have technical difficulties. If the watch is not searchable, try rebooting both devices. This is a classic but effective method of resetting temporary network errors.
The problem of permanently breaking the connection is often solved by clearing the cache of the Mi Fitness app. Go to your phone's settings, find the app, select Memory, and click Clear Cache.
⚠️ Warning: If the watch stops responding to presses and doesn’t turn on, plug it into the original charger for 30 minutes, even if the indicator doesn’t immediately light up.
In some cases, removing the device completely from the application and re-pairing from scratch helps. Don't be afraid to reset the settings if a software glitch interferes with normal operation.
If none of the methods helped, there may be a hardware malfunction of the Bluetooth module, and you will need to contact the service center.