The Haylou Smart Watch 2 is a popular gadget with a wide range of features, but its first connection to the Xiaomi Redmi smartphone can raise questions for a beginner. Despite the intuitive interface, synchronization through the official Haylou Fun app is sometimes accompanied by errors due to the features of Xiaomi firmware or permission conflicts. In this article, we will analyze not only the standard connection procedure, but also hidden settings that will help to avoid typical problems, from the lack of notifications to sudden connection breaks.
The Haylou Smart Watch 2 + Xiaomi Redmi pair is that both devices run on the Mi Ecosystem ecosystem, but use different communication protocols. For example, the watch supports Bluetooth 5.0, while Redmi budget models (such as the Redmi 9A or Redmi Note 10) can limit the background activity of applications to save battery. This leads to the fact that after connecting the clock stops synchronizing data after 10-15 minutes, we will tell you how to fix this without resetting.
1. Preparing Xiaomi Redmi phone for connection
Before you start syncing, you need to configure your smartphone. Xiaomi Redmi based on MIUI has aggressive battery optimization, which can block Haylou Fun from working in the background.
- 📱 Update. MIUI to the latest version: go to Settings → The phone. → System Update: Outdated firmware versions may not support Bluetooth LE (Low Energy, which is necessary for stable operation of the watch.
- 🔋 Turn off battery optimization for Haylou Fun app: Settings → Annexes → Application management → Haylou Fun → Battery → No restrictions.
- 📡 Enable geolocation (even if the watch does not have a GPS): This is required for certain functions to function properly, such as weather or pedometer. → Confidentiality → Permits → Geolocation.
- 🔄 Reboot your phone after changes: This will reset the Bluetooth module cache and prevent errors when you first connect.
Important: If your Xiaomi Redmi runs MIUI 12.5 or later, temporarily turn off the Automatic Switch Wi-Fi/Mobile Data feature in Settings → Connections → Additional. This option may interrupt the Bluetooth connection before connecting the watch.
2.Installation and configuration of the Haylou Fun app
The official Haylou Fun app is available in Google Play and AppGallery, but for users of Xiaomi Redmi there is a nuance: a version from the Mi App Store (preinstalled on the app). MIUI) It may be outdated. We recommend downloading. APK Only on the official Haylou website or through Google Play.
After installation, follow the following steps:
- Open Haylou Fun and allow all permissions (notifications, contacts, phone, storage) to be requested.
- Click Add Device → Select the Haylou Smart Watch 2 model.
- Turn on Bluetooth on your phone and wait until the watch appears on the list of available devices.
- Confirm the connection on the clock (on the screen will appear a request for pairing).
If the watch doesn’t appear on the list, try:
- 🔄 Reboot Haylou Fun and Bluetooth phone module (turn off/on Bluetooth in notification curtain).
- 📱 Remove the app cache: Settings → Annexes → Haylou Fun → Warehouse → Clear the cache.
- 🔋 Make sure the clock is over 20% charge (at low battery levels, it is not visible to connect).
Download Haylou Fun from Google Play| Disable battery optimization for the application |Enable geolocation and Bluetooth| Charge the watch to 30% or more |Reboot the phone-->
3. Data synchronization and notification setting
Once successfully connected, you need to configure notifications and data synchronization. By default, Haylou Smart Watch 2 supports the display of incoming calls, SMS and notifications from messengers (WhatsApp, Telegram, Viber), but this requires:
- In Haylou Fun, go to Notifications → Notification Management and turn on the switch for the desired applications.
- In your phone settings (Settings → Notifications → Additional), add Haylou Fun to the list of apps with notification access.
- For MIUI 13+: Turn off the “Curb Notifications” feature for Haylou Fun in Settings → Notifications → Applications.
A typical problem is that notifications are late or not displayed at all, because MIUI by default limits the background activity of applications.
⚠️ Note: If notifications don’t come, check if Haylou Fun has been added to the Sleeping Apps list (Settings) → Battery → Sleep mode. Remove it from there and restart the phone.
| Problem. | Reason. | Decision |
|---|---|---|
| The clock does not vibrate when notified. | Vibration turned off in the clock settings | In Haylou Fun, go to Device Settings → Vibration and turn on the option |
| Notifications are duplicated | Conflict with other applications (e.g. Mi Fit) | Turn off notifications in Mi Fit or delete it |
| The clock is off after 10-15 minutes. | MIUI limits background Bluetooth | Turn off the "Adaptive Battery" in Settings → Battery |
| The pedometer is not synchronized. | No permission to access sensors | Check the permissions for Haylou Fun in Settings → Apps → Permissions |
4. Solving common connection errors
Even with the right setup, Xiaomi Redmi users may encounter errors such as “Device not found” or “Unconnected” and consider the most common cases and their solutions:
- 🔴 “Bluetooth connection unstable” error: Conflict with other connected devices (e.g. headphones or fitness bracelet) Solution: disable all other Bluetooth devices and restart Haylou Fun.
- 🔴 Watches are connected, but immediately switched off: The culprit - the function "Automatic Bluetooth Shutdown to Save Charge" in the MIUI. Turn it off in Settings. → Bluetooth → Additionally.
- 🔴 App does not see hours after update MIUI: Reset network settings: Settings → System system → Resetting settings → Resetting Wi-Fi, Mobile Network and Bluetooth.
What if the watch stops connecting after resetting?
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If the watch does not respond to touch during connection, press the button on the case for 10 seconds to force reboot.
5. Optimizing the clock to save battery life
Haylou Smart Watch 2 paired with Xiaomi Redmi can discharge faster due to constant data synchronization.
- ⚡ Turn off unnecessary notifications: leave only important (calls, SMS, messengers).
- ⚡ Reduce the sync frequency: in Haylou Fun, select Settings → Synchronization of data → Every hour instead of "Continuously".
- ⚡ Use Do Not Disturb at night: This will turn off the vibration and backlight of the screen.
- ⚡ Update the watch firmware: new versions optimize power consumption. check the updates in Haylou Fun → Device profile → Update of the PO.
The average lifetime of Haylou Smart Watch 2 when used actively is 7-10 days. If the battery goes down in 1-2 days, check:
- 🔋 Is not a continuous heart rate monitoring enabled (Settings) → Heart monitoring → Manually).
- 🔋 Does it work in the background? GPS (Even if the watch does not have a module GPS, Some functions can emulate it).
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For maximum battery savings, turn off automatic weather and currency synchronization – these functions consume up to 15% of the charge per day.
6. Alternative ways to connect (without Haylou Fun)
If the official Haylou Fun app doesn’t work or isn’t available in your area, you can use alternative methods:
- 🔄 Mi Fit app: Some users report that Haylou Smart Watch 2 is partially supported in Mi Fit (version 4.6.0 and higher).
⚠️ Note: When using third-party apps (such as Notify & Fitness), disable Haylou Fun to avoid conflict.
7. Update the firmware of the watch through Xiaomi Redmi
The Haylou Smart Watch 2 firmware is updated via Haylou Fun, but sometimes the process hangs over the boot phase.
- Make sure your phone is connected to Wi-Fi (update via mobile internet may be interrupted).
- Close all background apps except Haylou Fun.
- If the download stops at 0% or 100%, restart the app and the clock.
- For forced upgrade: 1. Disconnect the watch from the phone. 2. In Haylou Fun, remove the device. 3. Connect the watch again - the app will prompt you to update the firmware.