Connecting Xiaomi Watches to Samsung Galaxy A31: Full Instruction with Error Solutions

Why sync Xiaomi and Samsung?

Xiaomi’s smartwatches (Mi Band, Amazfit or Watch series) and Samsung’s Galaxy A31 are different ecosystems, but their collaboration opens up a lot of possibilities: From tracking physical activity to managing notifications, proper synchronization turns the watch into a full-fledged gadget, not just an accessory.

The main challenge is that Samsung uses its own Galaxy Wearable ecosystem, and Xiaomi uses the Mi Fitness app (formerly Mi Fit) or Zepp (for Amazfit), which creates technical nuances that many users do not know. In this article, we will discuss not only the basic connection, but also hidden settings for stable operation on Android 11/12, which manufacturers do not advertise.

Important: If you’ve previously tried to connect a watch and encountered errors (e.g., “Device failed to find” or “Sync interrupted”), there’s a section at the end of the article that addresses 90% of these issues.

1.Preparation of the Samsung Galaxy A31 phone

The Galaxy A31 runs Android 10/11 (depending on the firmware version), and some system restrictions may block the connection to Xiaomi.

• 📱 Update the firmware: Go to Settings → Update the software and install the latest security patches, which will eliminate Bluetooth bugs that often interfere with the connection.
• 🔄 Reset Bluetooth cache: In Settings → Annexes → Bluetooth press "Storage" → "Clear the cache. That will delete old data about connected devices.
• 🛡️ Turn off battery optimization for the Mi app Fitness/Zepp: Go to Settings. → Caring for the device → Battery → Battery settings → Optimize the application and add the app for the watch in the exceptions.
• 📴 Activate Developer Mode (optional, but useful): 7 times click on "Build Number" in Settings → Phone information, then turn on “Bluetoothbug” in the developer menu.

If you are using the Mi Band 5/6/7 Xiaomi Watch S1, Check if the phone is geolocated (even if the clock is not on). GPS-Some functions (e.g. weather or phone search) require access to location.

2. Installation and configuration of the watch app

Depending on the model of the watch, you will need one of the official applications:

After installation of the annex:

1. Start it and sign up (use Mi Account or Zepp account).
2. Turn on all permissions: access to contacts, notifications, location and physical activity, without which the watch will not be able to show incoming calls or messages.
3. In the app menu, find the "Add device" item (usually the "+" icon in the upper right corner).

The app for the watch has been installed and updated|All permits granted|Bluetooth on your phone is on|The clock is at least 50 times charged%|Removed old paired devices in Bluetooth settings-->

3. Step-by-step connection of the watch to the Samsung Galaxy A31

Now, to the synchronization process itself, follow the instructions carefully, because the order of action is important.

Step 1. Turn on Xiaomi watch and activate pairing mode:

• For Mi Band: tap the touch button on the watch screen until it appears QR-code".
• For Amazfit/Xiaomi Watch: Press the side button for 3 seconds until the Bluetooth light flashes.

Step 2. In the Mi Fitness/Zepp app, click Add Device and select your watch model from the list. If there is no model, update the app or download it from the official Xiaomi website (sometimes updates are delayed on Google Play).

Step 3: You'll see a Bluetooth connection request on your phone, confirm it, then wait for the confirmation code to appear on your watch screen and in the app, and the codes should match -- if not, restart the process.

Step 4: Once you've successfully connected, the app will suggest you update the watch firmware. Don't refuse! The update fixes compatibility errors with Samsung. It will take 5-15 minutes to complete -- don't interrupt or leave the app.

4. Notification setting and data synchronization

By default, Xiaomi watches only show basic information. To receive notifications about calls, messages and calendar events, you need to:

For notifications:

1. In the Mi Fitness/Zepp app, go to Profile → Device Settings → Notifications.
2. Turn on the "Call Notifications" and "Notifications from Applications" switch.
3. Click "Select applications" and mark messengers (WhatsApp, Telegram), mail and other services.

For data synchronization:

• 🔄 Enable "Autosync" in the application settings (Section "Data").
• 📊 Connect to your Google Fit account (in "Profile") → Connected accounts) so that your steps and sleep data are automatically exported to Google Health.
• ⏰ Set up “Alarm clocks” and “Inaction reminders” in the menu of the clock.

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If notifications come with a delay, in the phone settings (Settings → Applications → Mi Fitness → Battery) set the “No Limits” mode for background activity.

5. Solving common problems

Even with the right connection, Samsung Galaxy A31 users often encounter errors, and here are the most common ones and ways to fix them:

⚠️ Warning: If Xiaomi watches are permanently disconnected from your phone, check if Samsung's power saving mode is blocking them. → Caring for the device → Battery → Background work add Mi Fitness to the list "Never turn off".

If none of these methods worked, try an alternative app like Notify & Fitness for Mi Band (available on Google Play), which supports more features than the official software but requires manual customization.

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90% of connection problems are solved by clearing the Bluetooth cache and turning off battery optimization for the watch application.

6. Additional functions and hidden capabilities

After successful synchronization, you can activate hidden functions that many users are unaware of:

• 🎵 Music management: In Mi Fitness, enable the option "Manage the player" - now from the clock you can switch tracks on the phone.
• 🔍 Phone search: Twice tap on the clock screen to Galaxy A31 It starts to vibrate (even if it is in silent mode).
• 📸 Remote shot: In the phone camera settings, select Smart Shutter and link it to the watch – you can now take pictures by pressing the button on your wrist.
• 🌙 Do Not Disturb: Set up automatic notifications on your clock at night.

For models Xiaomi Watch S1/S2 and Amazfit GTR 3 available voice assistants.

1. Install the Google Assistant or Alice from Yandex on your phone.
2. In the settings of the clock, turn on the option "Voice Assistant".
3. Press the button on the clock for 2 seconds and say the command (for example, "Show the weather").

If you're using the Mi Band 7 or newer, check for the "Always-on Display" feature, which saves battery life by providing adaptive lighting.

7. Optimization of the watch and phone battery

One of the main complaints of Samsung Galaxy A31 users is that the battery is running out fast when the clock is connected, which is because Bluetooth Low Energy (BLE) and background synchronization consume additional power.

• ⚡ Reduce synchronization frequency: In Mi Fitness, set the data update interval once every 30 minutes instead of 5.
• 📵 Turn off unnecessary notifications: Leave only important (calls, SMS, messengers).
• 🌱 Use dark themes: On AMOLED-Galaxy screen A31 This reduces battery consumption by 10-15%.
• 🔋 Calibrate the battery of the watch: Once a month, discharge the watch to 0% and charge to 100% without interruptions.

⚠️ Note: If Xiaomi watches run out in 1-2 days, check if they are equipped with custom dials from third-party sources. They often contain hidden processes that consume energy.

For maximum savings, turn off the clock:

• Permanent pulse meter (if not required 24/7).
• Automatic sleep detection (if you sleep with your phone nearby)
• Vibration at notifications (replace with an audible signal).

FAQ: Frequent questions about connecting Xiaomi to Samsung