Synchronizing Xiaomi’s weights with Samsung phone: full instruction with problem solving

Xiaomi’s smart scales are a popular solution for weight, body composition, and even heart rate control, but connecting them to Samsung phones often raises questions, and problems arise from Bluetooth Low Energy (BLE) protocols, application version conflicts, or smartphone power saving settings. In this article, we’ll look at all the synchronization methods, from the standard Mi Fit procedure to alternative methods using Zepp Life or third-party utilities.

It’s important to understand that Xiaomi Mi Scale 2/3, Smart Scale 2 and other models in the series work on a single principle, but may require different firmware versions. For example, new devices (released after 2022) are often not supported by older versions of Mi Fit, and Samsung phones on Android 13+ can block background application activity. We’ll look at all the nuances, including bypassing Samsung’s restrictions on scanning Bluetooth devices in the background.

1.Preparation: What is needed for synchronization

Before connecting, check three key points:

• 📱 Android version on Samsung phone: minimum required Android 6.0, but for stable operation better Android 9.0+. On One phones. UI 5.0+ (for example, Galaxy S22, A53) Additional permissions may be required.
• 🔋 Charge scales: If the indicator does not burn when you press the platform, the device is discharged. Charge the scales via USB-Type C (for new models) or micro-USB (for old models).
• 📲 Sync app: Mi Fit (older models) and Zepp Life (newer models) are officially supported. Download the current version from Google Play.

Pay special attention to the Bluetooth settings on your Samsung phone:

1. Open Settings → Connections → Bluetooth.
2. Activate visibility mode (if required).
3. Make sure that the menu option "Switch off Bluetooth to save charge" is additionally disabled.

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If the scales were previously connected to another phone, reset: press and hold the button on the back of the scales for 10 seconds until the indicator blinks.

2. synchronization via Mi Fit (for Xiaomi scales older than 2020)

Mi Fit is a classic way to connect, but it may not support new scales.

1. Install Mi Fit and sign up (or sign in via your Xiaomi account).
2. Click Profile → Add the device → Libra.
3. Choose your weight model (e.g. Mi Body Composition Scale 2).
4. Stand on the scale, and you'll see a connection request on your phone screen. Confirm it.

If the scales are not:

• 🔄 Reboot phone and scales.
• 📵 Turn on Flight Mode for 10 seconds, then turn off.
• 🔧 In Mi Fit settings, turn off and turn on Autosynchronization again.

The latest version of Mi Fit is installed|Bluetooth is enabled and visible for other devices|Libra charged (indicator on fire)|Previous connections dropped on the scales-->

Mi Body Composition Scale 2|Smart Scale 2|Mi Scale 2|Another model |I don't know-->

Connection via Zepp Life (for new models)

Since 2021, Xiaomi has moved to the Zepp Life app for new devices. The interface and the connection algorithm are different:

1. Download Zepp Life and create an account (you can use data from Mi Fit).
2. Press Devices. → Add → Libra.
3. Select a model from the list (e.g. Xiaomi Smart Scale 3).
4. Stand on the scale, and the phone will be notified to search for the device, and wait until the sync is complete.

If the process is suspended during the search phase:

• 🛠️ Remove the Zepp Life app cache in your phone settings (Settings) → Annexes → Zepp Life → Memory. → Clear the cache).
• 📡 Switch from Wi-Fi to Mobile Data – Sometimes it speeds up search.
• 🔄 Try connecting from another phone (like an iPhone or an older Samsung model), then transfer the data to Zepp Life on the main device.

4. Solving Connection Issues on Samsung Phones

Samsung phones are known for aggressive power optimisation, which prevents the BLE from running smoothly.

For Samsung Galaxy S21/S22/S23 models with One UI 5.0+, additionally:

1. Open the Settings. → Annexes → Zepp Life/Mi Fit → Permits.
2. Enable all permissions, including Exact Location (necessary for Bluetooth to work).
3. In the menu, additionally activate "Allow system settings to change".

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On Samsung phones with Android 12+, be sure to turn off the “Automatically Disable Unused Connections” feature in Bluetooth settings.

5. Alternative synchronization methods

If standard methods don’t work, try:

• 🔗 Health Sync app: sync data from Mi Fit/Zepp Life with Samsung Health.Suitable for integration with Samsung ecosystem.
• 🌐 Mi Fit Web Version: Some Data Can Be Exported [mi.com](https://account.xiaomi.com) manually.
• 📱 Using a second phone: connect the scales to another device (like an iPhone or Xiaomi), then export the data to the device. CSV And import into Samsung Health.

For advanced users:

Activate the developer mode on your Samsung phone:


1. Go to Settings → About Phone → Software Information.




2. Press 7 times on "Assembly Number".




3. Go back to Settings → System → Developer Mode.




4. Enable "Do not turn off Bluetooth in standby mode."

6. Frequent errors and their correction

Let’s look at the common mistakes that occur during synchronization:

⚠️ Warning: If the scales show an error of "Err" or "Lo", this means low battery charge. Charge the device for 2-3 hours, even if the indicator is not lit. New models (for example, Smart Scale 3) may not turn on when the discharge is below 10%.

If after all the manipulations the scales have not connected:

1. Check if your weight model supports Samsung (the compatibility list is available at [the official website] (https://www.mi.com/global/smart-scale/)).
2. Install an alternative firmware on the scale (such as Custom Mi Scale Firmware) via PC.
3. Contact Xiaomi with error logs (you can export them to Mi Fit via Settings → Reviews).

7. Optimization of work after connection

To ensure that the scales are consistently synchronized with the Samsung phone:

• 🔄 Set up automatic synchronization in Mi Fit/Zepp Life: Profile → Settings → Autosynchronization → Turn it on.
• 📊 Activate weigh-in notifications to avoid missing new data.
• 🔋 Keep the scales charged (optimal level is above 30%).
• 📱 Regularly update the application and firmware of scales.

For Samsung Health users:

1. Connect your Mi Fit/Zepp Life account to Samsung Health via Settings → Connected Services.
2. Set up export data on weight, BMI and muscle mass.
3. Use the Samsung Health widget on the home screen for quick access to statistics.

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If you use scales to monitor your workouts, enable integration with Google Fit or Apple Health (if you have an iPad/Mac) to collect data in one place.

FAQ: Answers to Frequent Questions