Why Samsung Galaxy Watch is switched off from Xiaomi phone

Xiaomi smartphone owners who choose to use Samsung smartwatches often face an annoying problem: gadgets periodically lose connection or completely stop seeing each other. This is not just a bug, but the consequence of an aggressive energy saving policy built into the shell of MIUI and HyperOS. The system “kills” background processes, considering them unnecessary, which leads to a break in the stable communication channel between the phone and the wearable device.

To make matters worse, standard Bluetooth settings often fail to address the system limitations of a Chinese Android, where users see only a flashing connection icon or a message that the watch is off even though it is physically nearby. Deep optimization of applications in the background is the main enemy of stability in the bundle.

But the situation is fixable: To work properly, the Samsung Galaxy Watch and Xiaomi pairing will need to manually reconfigure several system settings, disable tight restrictions, and properly configure access rights. In this article, we will detail each step that will help you forget about the constant disconnection.

Aggressive battery optimization MIUI and HyperOS

The main reason smartwatches lose touch with the phone is because of energy saving: MIUI and HyperOS shells are famous for their tight control over running applications. The system automatically shuts down processes that are not currently used to extend the battery life of a smartphone. Unfortunately, services responsible for maintaining a Bluetooth connection with wearable electronics are often at risk.

When you lock the phone screen, the operating system begins to "clean" the memory. The Galaxy Wearable app or Bluetooth system services can be forcibly stopped.This causes the watch to stop receiving notifications, not synchronizing health data and eventually completely break the connection. Aggressive power saving mode makes no exceptions to important system processes without manual tuning.

To solve this problem, you need to manually tell the system that certain applications must be running all the time, which requires changing the settings for each key component of the bundle, and ignoring this step makes further adjustments useless, as the system will turn off the necessary services over and over again.

It's important to understand that standard battery-saving guidelines don't work here, you're going to have to sacrifice a small percentage of your smartphone's autonomy for the sake of a stable accessory, and that's the only way you can get devices from different manufacturers to work in harmony without having to reconnect constantly.

⚠️ Warning: Changing your energy saving settings can cause your smartphone battery to discharge faster, but it is a necessary measure to keep your watch running smoothly.

Setup Auto Start and Background Application Activity

The first step to stabilizing the connection is to properly configure the Galaxy Wearable app and the Watch Plugin plugin. These two components are the bridge between the phone's operating system and the clock. If one of them is stopped by the system, communication will be interrupted. On Xiaomi devices, this process requires manual activation of several hidden or little-known switches.

You need to find the app in the installed program list and go to its detailed settings. Here, the key parameter is "Out-Start." By default, it is often disabled. Activating this permission allows the application to start immediately after the phone is turned on without waiting for user intervention. Without this, the watch may not connect after the smartphone is restarted.

The second critical parameter is Background Activity or Background Activity Restriction, and you have to choose the No Limits option or the Allow Background option, which will prevent MIUI from "sleeping" the application even if you haven't opened it in a while, and it's also worth checking if the Save Connection option is enabled, if you have one in your shell version.

Remember to repeat this procedure not only for the main Galaxy Wearable app, but also for Watch Plugin, as well as for Bluetooth system services and Samsung Data Sync. Often the problem lies in the plugin, which stays asleep while the main application is active.

Working with Bluetooth and paired devices

Bluetooth is the foundation of the phone-watch connection. In MIUI-based Android, Bluetooth devices can be run capricious. It often happens that the watch is listed as "Connected" on the list of connected devices, but the data is not transmitted, which indicates a desynchronization of connection profiles.

To fix the problem, it is recommended to perform a full Bluetooth cache cleanup.This will not remove your stored devices forever, but will force the system to rescan the ether and reconnect with clean settings. Also worth paying attention to the Bluetooth version: old watch models can conflict with new modules in phones if the current drivers are not installed.

The reconnection procedure is as follows: first remove the device from the list of paired Bluetooth phone settings, then remove the phone from the clock settings (usually under General -> Connect a new phone), and only after the old connection is completely broken, you can start the pairing procedure again.

When pairing again, make sure the screens of both devices are on and close to each other. Don't agree to permission requests too quickly, let the system fully identify profiles. If the system requests permission to access contacts or call logs, be sure to confirm it, as it's part of the handshake protocol.

Conflicts of Android and One Watch versions

Samsung’s ecosystem is built around One Watch (formerly Samsung Health Monitor), which requires deep integration with the system. On Xiaomi phones, this integration is disrupted by the lack of native Samsung Framework services. The watch may work, but functionality will be reduced and connection stability lower.

A common cause of blackouts is incompatibility of Android versions. If a new firmware is installed on the watch that requires fresh security libraries, and the phone runs on an older version of Android, the connection can break down by a security timeout. Always check for updates for the phone's OS.

Also, it is worth considering that some features, such as ECG or pressure measurement, may not work at all or require complex manipulation of certificates. However, the basic stability of the connection should not depend on these features. If the clock is turned off, the problem is often Bluetooth drivers or background processes, not software versions.

It is critical for Xiaomi users to install all Samsung components available in the Galaxy Store or through third-party installers (if the clock allows).The absence of at least one system plugin can cause cyclical reconnections.

The Impact of Third-Party Launchers and Antiviruses

Installing alternative launchers or memory “accelerators” on Xiaomi can make the problem worse.Such applications often have their own memory management rules that duplicate or conflict with MIUI system settings. If you use a third-party launcher, check its power saving settings.

Antivirus programs can also block the background activity of applications, considering the constant data transfer suspicious. If you have a third-party antivirus installed, add Samsung applications to the list of exceptions or trusted programs. The built-in MIUI protector usually does not interfere if the access rights are correctly configured.

Some users have noted that turning on Do Not Disturb or Sleep on your phone also breaks the connection, which is because these modes limit network activity. Check the settings of these modes and make sure that the watch or Wearable app is not worth the restriction.

There are also conflicts with other wearables, and if another manufacturer's fitness bracelet and Samsung's watch are connected to the phone at the same time, there may be addressing or interrupting conflicts, and try to temporarily turn off other diagnostic devices.

Compatibility table and frequent errors

Here's a table that will help you organize the possible causes of problems and how to solve them, and users often make the same mistakes when trying to connect devices across different ecosystems.

⚠️ Note: When removing a device from the Bluetooth list, remember to reset the network settings on the watch itself if the problem persists for a long time.

Resetting network settings and reinstalling components

If none of the above methods worked, there may have been a build-up of configuration errors that can't be fixed with point changes, in which case a complete reset of the phone's network settings is effective, and this action will remove all stored Wi-Fi networks, Bluetooth devices and mobile network settings, returning the communication modules to factory status.

Once you reset the network, you have to go all the way back to the setup process: turn on Bluetooth, start up Galaxy Wearable, find a watch, and create a new pair. It's important to keep a single step of the setup wizard and provide all the permissions you're asking for, and that will allow you to create a new, clean connection profile without the old bugs.

In extreme cases, if the problem lies in the software failure of the application itself, it will help to completely reinstall it with data cleaning. Not just delete the application, but pre-clean its cache and data in the phone settings. Then delete the application itself, restart the phone and install the latest version from Google Play.

Sometimes it helps to update the firmware of the watch itself through the computer (Smart Switch program), if you can not update through the phone due to an unstable connection.

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Use the original cable to charge and connect the watch to your PC when upgrading your firmware – cheap cables can cause data transmission errors.

FAQ: Frequently Asked Questions

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The stability of the Samsung and Xiaomi bundle depends on 90% of manual permissions and disabling battery savings for Samsung system applications.