Smart watches Haylou steel A popular choice among Android users due to its combination of functionality and affordable price. However, many encounter difficulties when connecting the device to a smartphone for the first time via Bluetooth. Unlike the iPhone, where the process is often automated, on Android you need to complete several additional steps - especially if you are not using the original application from the manufacturer.

In this article we will examine not only the standard pairing procedure, but also nuances that are rarely mentioned in official instructions. For example, why Haylou Solar or Haylou GST may not be detected by the phone, how to properly set up notifications, and what to do if the connection is constantly interrupted. You will also learn which Android settings affect the stability of the connection and how to optimize them.

Preparing for connection: what you need to check before pairing

Before you start connecting, make sure that both devices are ready to communicate. A common mistake made by users is trying to pair with a discharged watch or when the energy-saving mode is active on the smartphone. Here's what you need to do in advance:

  • 🔋 Charging the watch. The battery level Haylou should be at least 30%. If the battery is low, the device may turn off during setup.
  • 📱 Android update. The smartphone must have the latest version of the OS installed (minimum Android 8.0). Older versions may not support protocols Bluetooth 5.0used in new watch models.
  • 🔄 Resetting the watch. If the watch has already been connected to another device, reset it via Settings → Reset (the method varies depending on the model).
  • 📌 Application Permissions. The application Haylou Fun (or alternative) must have access to Contacts, Notifications and Locations.

Pay special attention power saving mode on your smartphone. Some manufacturers (for example Xiaomi or Samsungaggressively limit the background activity of applications, which leads to connection failure. Before connecting, add Haylou Fun to the list of exceptions:

⚠️ Attention: On phones with shell MIUI (Xiaomi, Redmi, POCO), you must disable the function Battery optimization for the clock application. Otherwise, notifications will arrive with a delay or not arrive at all.

Also check whether the On the plane or Do not disturbmode is enabled on your phone. These settings block the Bluetooth-connection, even if the module itself is turned on. If you are using Haylou LS05 or older models, make sure that the watch's visibility mode is activated (usually turned on by long pressing the physical button).

Step-by-step guide: how to connect Haylou to Android via Bluetooth

The pairing process consists of three main stages: installing the application, searching for the device and setting up synchronization. Let's look at each step in detail.

1. Installing the official application

The manufacturer recommends using Haylou Fun a proprietary application to control the watch. Download it from Google Play:

  1. Open Play Market and enter in search Haylou Fun.
  2. Install the application (size ~50 MB).
  3. Run Haylou Fun and allow all requested permissions (especially important Notifications and Location).

If your watch model is not supported Haylou Fun (for example, Haylou Solar Plus), use alternative applications:

  • 🔹 Notify & Fitness for Haylou —for basic functions (pedometer, notifications).
  • 🔹 Mi Fit —suitable for some models (but requires registration in Xiaomi).

2. Finding and pairing the device

Now let's move on to the connection itself:

Turn on Bluetooth on phone

Activate visibility mode on the watch

Launch the Haylou Fun application

Select the watch model in the list of devices

Confirm pairing on both devices-->

Detailed instructions:

  1. On your phone, open Settings → Connected devices → Bluetooth and turn on the module.
  2. On your watch Haylou activate the mode search:
    • For Haylou GST/LS05: hold the button for 3 seconds until the indicator flashes.
    • For Haylou Solar: Swipe down the screen and select Bluetooth.
  • In the application Haylou Fun tap Add device and select your model from the list.
  • Confirm pairing on your phone (a request with a confirmation code will appear).

    • If the watch is not located, try:

    • 🔄 Reboot both devices.
    • 📱 Delete the application cache Haylou Fun in the Android settings.
    • 🔋 Check the charge of the watch (if the level is below 15%, Bluetooth may not work).

    3. Setting up notifications and synchronization

    After successful connection, you need to configure the transmission of notifications:

    1. In Haylou Fun go to Device profile → Notifications.
    2. Enable switch Allow notifications.
    3. Select applications from which you want to receive notifications (for example, WhatsApp, Telegram, Calls).
    4. In Android settings, open Applications → Haylou Fun → Notifications and enable the option Show notifications.
    ⚠️ Attention: On phones with Android 12+ you must manually allow the application to access Exact notifications. Without this, the watch will not work. show only standard notifications without text.

    To check synchronization, send a test message to your phone - it should appear on the watch screen within 5-10 seconds. If notifications do not arrive, restart the application Haylou Fun and reconnect the watch.

    Problem solving: Haylou watch does not connect to Android

    Even if you follow the instructions correctly, errors may occur. Let's look at the most common problems and how to fix them.

    Problem Possible cause Solution
    The watch is not in the list of devices Bluetooth on the watch is disabled or the visibility mode is inactive Reboot the watch by holding the button for 10 seconds. Activate the pairing mode again.
    Pairing is interrupted during the connection stage Conflict with another Bluetooth device (for example, headphones) Disconnect all other Bluetooth gadgets and try again.
    Notifications arrive with a delay or not come Android energy saving mode limits background activity Add Haylou Fun to the battery optimization exceptions (see the "Preparation" section).
    The watch connects, but quickly disconnects Weak Bluetooth signal or interference from other devices Reduce the distance between the watch and the phone (maximum 10 meters). Avoid sources of interference (microwaves, Wi-Fi routers).
    The application does not see the watch model Outdated version Haylou Fun or incompatibility Update the application or use an alternative (for example, Notify & Fitness).

    If none of the methods helped, try reset your watch to factory settings. To do this:

    1. On your watch, go to Settings → System → Reset.
    2. Confirm the action (usually you need to hold the button for 5-7 seconds).
    3. Repeat the pairing procedure from scratch.

    Haylou Solar/Lunar|Haylou GST|Haylou LS05/LS02|Haylou RT LS05S|Other model|Not yet purchased-->

    For models Haylou Solar Plus and newer, a firmware update may be required. Check the current version in the application Haylou Fun in the About the device → Software update. Updating through unofficial sources can lead to loss of functionality - use only proprietary software.

    Optimizing the connection: how to make the connection stable

    Frequent connection breaks are one of the main complaints users Haylou. This is due not only to hardware limitations, but also to Android settings. Here's how to improve stability:

    • 📶 Disable automatic switching to Wi-Fi. On some phones (for example Samsung), the function Smart Switch may conflict with Bluetooth.
    • 🔄 Update the watch firmware. The manufacturer regularly releases patches to correct connection errors.
    • 📵 Limit background processes. Close unused applications, especially instant messengers and games that actively consume resources.
    • 🔋 Use the original charging cable. Low-quality chargers can cause malfunctions of the Bluetooth module.

    For users Xiaomi/Redmi there is an additional tip: disable the function Dual Bluetooth devices in the developer settings. This option may create conflicts when connecting multiple gadgets. To find it:

    1. Activate Developer mode (tap 7 times on Number assembly in Settings → About phone).
    2. Go to Settings → System → For developers.
    3. Find the option Dual Bluetooth devices and disable it.
    💡

    If your watch Haylou constantly turns off during exercise, try turning off the function Auto brightness on the screen. In some models, the light sensor conflicts with the Bluetooth module.

    It is also worth paying attention to Bluetooth version on your smartphone. Devices with Bluetooth 4.0 (for example, older models Samsung Galaxy J) may experience problems with Haylou GST or Solarthat require Bluetooth 5.0. Check the specifications of your phone on the manufacturer's official website.

    Alternative connection methods: if Bluetooth does not work

    In rare cases, standard Bluetooth pairing is not possible due to hardware limitations or software glitches. Let's look at workarounds.

    1. Connection via application Mi Fit

    Some models Haylou (for example, LS02) are compatible with Mi Fit - application for devices Xiaomi. Instructions:

    1. Install Mi Fit from Google Play.
    2. Register or log in through your account Xiaomi.
    3. In the section Profile → Add device select Other and find your model Haylou.
    4. Follow the on-screen instructions (you will need to scan the QR code from the watch screen).

    Please note: some features specific to your device may not be available Mi Fit Some features specific to Haylou (for example, custom watch faces). However, basic features (pedometer, notifications, sleep monitoring) will work.

    2. Using third-party applications

    If official applications are not suitable, try:

    • 🔹 Notify & Fitness for Haylou —supports most models, but requires manual configuration of notifications.
    • 🔹 Tools & Mi Band —universal solution for chip-based devices Nordic (used in Haylou GST).

    When using third-party applications, be careful with permissions. Some of them request access to SMS and Call log - provide only the necessary rights.

    What to do if the watch connects but does not synchronize data?

    The problem may be related to a timestamp conflict. Try manually synchronizing the time on your watch with your phone:

    1. Open Haylou Fun.

    2. Go to Device profile → Settings → Time and date.

    3. Disable Auto-sync and set the time manually.

    4. Reboot the watch and re-enable auto-sync.

    If this does not help, remove the device from the list of paired ones in the Bluetooth settings and set it up again.

    3. Connection via ADB (for experienced users)

    If the watch is detected by the system, but does not connect through the app, you can try forced pairing via ADB. This method requires command line skills.

    Instructions:

    1. Enable USB debugging on your phone (Settings → About phone → Build number - 7 times, then For developers → USB debugging).
    2. Connect your phone to the PC and run the command: 
      adb shell am start -a android.bluetooth.devicepicker.action.LAUNCH -n com.android.bluetooth/.opp.BluetoothOppLauncherActivity
    3. In the menu that opens, select your watch and confirm pairing.

    This method can help if the application Haylou Fun does not see the device, but it is displayed in the Bluetooth system settings.

    Comparison of Haylou models: which watch is easier to connect to Android

    Not all models Haylou work equally well with Android. Below is a comparison of popular devices in terms of ease of connection and connection stability.

    Model Bluetooth protocol Connection complexity Connection stability Notes
    Haylou Solar/Lunar 5.0 Low High Supports fast synchronization, rarely turns off.
    Haylou GST 5.0 Medium Medium There may be problems with notifications on Android 11+.
    Haylou LS05 4.2 High Low Frequent disconnections, requires manual reconnection.
    Haylou RT LS05S 5.0 Low High Optimized for Android, rarely crashes.
    Haylou LS02 4.0 Medium Low Works better with Mi Fitthan with Haylou Fun.

    If you are just planning a purchase, pay attention to models with Bluetooth 5.0 —they provide a more stable connection and lower power consumption. For budget devices (for example, LS02), be prepared for manual setup and possible failures.

    ⚠️ Attention: Some phones with custom firmware (for example, LineageOS) may experience pairing problems due to lack of profile support. BLE. Before purchasing, check the compatibility of your smartphone model on forums (for example, 4PDA).

    Security: How to protect data when connecting Haylou to Android

    Connecting a smartwatch to a smartphone creates additional privacy risks. The watch Haylou gains access to notifications, contacts and location data. Here's how to minimize threats:

    • 🔒 Limit access to data. In Android settings, disable permissions for Haylou Fun that are not critical (for example, Camera or Microphone).
    • 📱 Use a separate Google account. If you are afraid of data leakage, create a second account to synchronize with your watch.
    • 🔄 Update the firmware regularly. The manufacturer closes vulnerabilities in new versions of the software.
    • 🛡️ Disable the transmission of notifications from banking applications. Some models Haylou save the text of notifications in logs.

    It is also worth paying attention to data encryption. In most models Haylou data transfer between the watch and the phone is not encrypted, which makes it vulnerable to interception. Avoid connecting to the watch in public places with a lot of Bluetooth devices (for example, in the subway or shopping centers).

    If you use the watch for fitness tracking, check what data is sent to the servers Haylou. In the application Haylou Fun go to Settings → Privacy and disable the option Sending anonymous statisticsif it is enabled.

    💡

    Never connect your smartwatch to public Wi-Fi networks via your phone. This may lead to data leakage about your activity and location.

    FAQ: answers to frequently asked questions about connecting Haylou to Android

    Is it possible to connect Haylou to Android without an application?

    Technically yes, but the functionality will be severely limited. Through the standard Bluetooth menu, you'll only be able to pair your watch, but you won't get notifications, health data, or the ability to customize your watch faces. For full operation, you must install Haylou Fun or an alternative application.

    Why does Haylou GST not connect to Samsung Galaxy?

    The problem is often related to the proprietary shell One UI, which blocks background activity of applications. Solution:

    1. Open Settings → Device care → Battery.
    2. Find Haylou Fun in the list and disable Battery optimization.
    3. Add the application to Non-optimized.

    Also try disabling the function Adaptive battery in the developer settings.

    How to reset Bluetooth settings on your Haylou watch?

    The method depends on the model:

    • For Haylou Solar/Solar Plus: Settings → System → Reset → Reset Bluetooth.
    • For Haylou GST/LS05: hold the button 10 seconds until the reset menu appears.
    • For Haylou LS02: go to Settings → Advanced → Reset connection.

    After the reset, the clock will become visible to new devices.

    Is it possible to connect Haylou to two phones at the same time?

    Officially - no. The watch Haylou supports pairing with only one device. However, there is a workaround:

    1. Connect the watch to the first phone and configure all settings.
    2. Disable Bluetooth on the first phone (do not remove the device!).
    3. Activate Bluetooth on the second phone and connect the watch manually through the system menu (without the application).

    Notifications will only be sent to the phone that is currently connected.

    What to do if, after updating the firmware, the watch stops connecting?

    This is a typical problem with an incorrect update. Try:

    1. Remove the watch from the list of paired devices on your phone.
    2. Reset your watch (see question above).
    3. Install the previous firmware version (if available) via Haylou Fun.

    If all else fails, contact support Haylou indicating the watch model and firmware version.