How to turn Bluetooth on Xiaomi smartwatch: the complete guide

Xiaomi’s modern wearables have become an integral part of the smart home and personal electronics ecosystem of millions of users around the world. However, despite the clever interface, initial wireless setup is often a challenge for beginners, especially when it comes to the specifics of Bluetooth Low Energy. Unlike conventional headphones or speakers, the watch requires not just a module, but a strict sequence of actions through a mobile application.

Understanding how to activate the radio is the foundation for the future operation of the device. Without a stable connection, you can not receive notifications, track training statistics or update the dials. Many users mistakenly believe that it is enough to just press a button on the case, but reality dictates the rules of interaction between the smartphone operating system and the firmware of the gadget.

In this article, we will take a look at all the nuances of the process, from checking the compatibility of operating systems to solving complex pairing conflicts. You will learn why the standard smartphone menu sometimes hides the device and how to make the Mi Band or Amazfit visible to the phone again.

Bluetooth in the Xiaomi ecosystem

The wireless technology used in activity trackers and smartwatches is very different from the classic Bluetooth we're used to in audio, and it uses the BLE (Bluetooth Low Energy) standard, which is designed specifically for battery-limited devices, and the main feature is that the module spends most of the time in deep sleep, waking up only a fraction of a second to transmit data packets.

That is why searching for a device through the standard Android or iOS settings menu often fails. The system expects the user to use specialized software to initiate the connection. Direct pairing through the phone's Bluetooth system manager can lead to synchronization errors or the device's complete failure to transmit pulse and step data.

It's important to understand that Mi Fit and Mi Fitness are intermediaries, and they not only turn on the radio, they also set up a secure channel, and if you try to connect the watch as a normal headset, you'll get an error message, or the device will show up as "unknown," but the functionality will not work.

Preparation of the smartphone and compatibility check

Before attempting to turn on the watch, you need to make sure that your smartphone is technically ready to interact with Xiaomi gadgets. Often the problem lies not in the bracelet itself, but in the security settings of the mobile operating system, which block scanning of the peripherals. To work properly, you need a Bluetooth module version 4.0 and higher, although modern models work better with 5.0.

The first step is to check the permissions for the companion app, which, without granting geolocation and background permissions, cannot initiate a device search, a requirement that is driven by Google and Apple’s security policies, which link the ability to scan Bluetooth signals to access a user’s location.

• 📱 Make sure that the Android version is at least 6.0 and iOS is at least 12.0, as older versions may not support the required drivers.
• 📍 Turn on geolocation (GPS) On your phone, even if you don’t plan to use cards, it’s a must for a Bluetooth scanner to work.
• 🔋 Check the charge of both devices: at low energy levels (less than 20%), some watches automatically limit the transmitter power.

It’s also worth clearing the list of previously paired devices if you’ve previously tried to connect the same watch or another Xiaomi tracker. Having an old profile can create an address conflict. Go to Bluetooth settings, find forgotten devices in the list, and click “Forget this device” or “Unpair”.

Activation algorithm through the Mi Fitness app

The process of turning on a Bluetooth module on a watch is inextricably linked to the pairing procedure through the official app. For new models such as the Mi Band 7, Mi Band 8 and Watch S series, the Mi Fitness app (formerly Xiaomi Wear) is used. Older models may require Zepp Life, so it is important to choose the right software.

Once you install the app and register your Mi Account, you need to go to the Profile or Device tab, where the system automatically starts searching for available gadgets within a few meters, at which point a pairing confirmation request may appear on the watch screen, which you need to confirm with a touch or a button.

If the automatic search fails, try manually binding. In the app, select "Add device" and the system will prompt you to scan. QR-At this point, the clock is forced to activate the detection mode on the watch, making it visible to the outside world.

⚠️ Warning: Do not attempt to pair the clock through the phone's Bluetooth system menu until the setup is complete in the app.This may block the ability to normally synchronize data, and you will have to perform a complete reset of the device.

Setting up visibility and pairing mode

In some situations, especially after resetting or when you first activate, Xiaomi watches go into a special connection waiting mode. QR-In this state, the device actively broadcasts the signal, but only for a limited time, usually around the 1-2 minute.

To extend this time or re-activate visibility mode on older bracelets, you often need to touch the touch button several times. On more advanced models with the Wear OS operating system or the proprietary RTOS from Huami, the Bluetooth menu is located in the settings section of the device itself, where you can clearly see the "Visibility" or "Pair" switch.

The table below shows the differences in the behavior of different series of devices when trying to connect:

It's important to note that once paired successfully, the watch is no longer visible to other devices, a security feature that prevents unauthorized access to your health data, and if you need to connect the watch to a new phone, you'll have to re-initiate pairing mode through the device's menu.

Solving Device Detection Problems

The phone can't see the watch, and it's one of the most common, often because of the cache of the operating system's Bluetooth services, and the accumulated errors can prevent the phone from scanning the airspace correctly, and in such cases, restarting the Bluetooth stack on the smartphone helps.

Try to do this: turn off Bluetooth completely on your phone, wait 10 seconds and turn it on again. If that doesn't work, reboot your smartphone. This action clears temporary communications files and often solves the problem of "invisible" devices.

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Before you try again to connect, clear the Mi Fitness app cache in your phone settings: Settings -> Apps -> Mi Fitness -> Memory -> Clear the cache.

Another reason could be energy saving: Aggressive battery optimization algorithms on Xiaomi, Huawei or Samsung smartphones can kill the scanning process immediately after the screen is turned off, and add a companion app to the list of exceptions or permitted background processes.

Also check if the watch is connected to another phone: BLE allows the device to be associated with only one active host. If the watch has been previously used with another account, it must be untie in the app on the old device or reset.

Reset and reconnect Xiaomi watches

If the software methods don't work, the only correct solution is to completely reset the device to factory settings, which deletes all the accumulated data, dial settings, and most importantly, breaks all previous Bluetooth connections. On a watch, this is usually done via the Settings -> System -> Reset or Factory Reset menu.

For models without a touch screen or with a faulty touchscreen, you can use hardware reset. On some Mi Band models, this is done by connecting to a charger: when a charging icon appears, you need to quickly press the touch button 5 times. However, this method does not work on all revisions.

⚠️ Warning: After resetting, any unsaved workout data that did not sync with the cloud will be permanently lost.

Once the watch has reset and shown the welcome screen in multiple languages, it automatically goes to the standby mode of connection, now you can re-start the search in the application, usually after a clean reset, the devices are instantly connected and connect without errors.

Frequently Asked Questions (FAQ)

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The key to success is to always use the official app for initial setup and avoid the Bluetooth system menu for managing the watch.