How to connect Xiaomi scales to a smartphone: full instruction with photos and tips

Xiaomi's smart scales are no longer exotic — they're now an affordable gadget for controlling weight, body composition, and even hydration levels. But many users have difficulty with the first synchronization phase: the device doesn't find the phone, the app gives an error, and the data isn't saved, and 80 percent of the problems are due to improper preparation or outdated firmware.

In this article, you will find step-by-step instructions for all Xiaomi scale models (from Mi Scale). 1 to Smart Scale 2 Pro, current ways to connect via Mi Fit and Zepp Life, and unique solutions for rare errors – for example, when scales are defined as an “unknown device” or permanently reset the connection. Fit/Apple Health and battery optimization.

If you've already tried to connect scales and you've got an Error 1001 or Device not found error, don't rush to bring the gadget to the service - in 95% of cases, the problem is solved software. And for iPhone owners, we've prepared a separate section taking into account the limitations of iOS to work with Bluetooth LE.

⚠️ Important for Mi Scale 2 and older users: If your scales suddenly stop syncing after an app update, check the device’s firmware version. Since October 2023, Xiaomi has suspended support for older versions of Mi Fit (below 5.12.0) for scales released before 2020 – without an update to the application, connection is impossible.

1.What scales Xiaomi supports phone connection?

Not all Xiaomi smart scales are compatible with smartphones, and here is the current list of supported devices (2026 data) with key features:

🔹 Xiaomi Mi Body Composition Scale 2 is a flagship model with an analysis of 13 body parameters (including bone mass and visceral fat.

🔹 Xiaomi Smart Scale 2 Pro is a budget option with basic metrics (weight, BMI, muscle mass.

🔹 Xiaomi Mi Scale 1S/2 — They're outdated models, but they're still relevant for users on a budget. 4.6.0.

🔹 Xiaomi Mi Body Fat Scale – the first model with fat analysis, compatible only with older versions of Mi Fit (up to 5.0).

⚠️ Note: Xiaomi Mi Scale (first generation, 2015) is not officially supported since 2022, and can only be connected via third-party apps like Mi Scale Master, but synchronization will be unstable.

If you're unsure of the model of your scales, look at the sticker under the device or in the documentation.The model code usually begins with:

• 📌 XMTZC01HM — Mi Body Composition Scale 2
• 📌 XMTZC02HM — Smart Scale 2 Pro
• 📌 XMTZC05HM — Mi Scale 2

Preparation for connection: what to do before synchronization

Before you tie the scales to the phone, follow the mandatory steps:

🔋 Charging scales: Make sure the device is charged (charging indicator - flashing LED when connected to the network). Xiaomi scales do not turn on if the charge is below 10%.

📱 Phone software update: On Android, check the Bluetooth version (should be at least 4.0). iPhone requires iOS 12.0+.

🌐 Internet connection: Application Mi Fit/Zepp Life downloads the drivers for the scales on the first connection. Without the Internet, the sync will be interrupted at the "Device Search" stage".

📌 Checklist of preparations:

⚠️ Attention for iPhone users: In iOS settings go to Settings → Confidentiality → Geolocation services and enable geolocation for the Mi Fit app. Without this, the scales will not be able to connect due to Apple's Bluetooth restrictions LE background.

3. Step-by-step instruction: how to tie Xiaomi scales to your phone

Consider the two official ways to connect, Mi Fit and Zepp Life, and choose the one that matches your scale model.

📌 Method 1: Mi Fit application (for all models)

1. Download Mi Fit from Google Play or App Store.
2. Sign up or sign in to your Xiaomi account (required! Without an account, the scales won’t save data).
3. Click Profile → Add the device → Libra.
4. Select your model from the list (if not, select Another device).
5. Stand on the scale, and you'll see a connection request on your phone screen. Confirm it.
6. Wait for the synchronization to complete (usually 10–30 seconds).

📌 Method 2: Zepp Life (only for Mi Body Composition Scale 2 and later)

1. Install Zepp Life (Android/IOS)
2. Sign in to Zepp (you can use the same one as for Mi Fit).
3. Go to the Devices. → Add → Libra.
4. Follow the instructions on the screen. The scales should flash white lights, which is a signal for successful connection.

🔍 How to know if the scales are connected?

• 🟢 On the scale screen will appear a tick or smiley.
• 📱 The app will show your weight and additional metrics (if supported by the model).
• 🔄 In the history of measurements (Profile) → Devices → Libra → History will be a new record.

💡

If the scales do not respond to pressing, try resetting them to factory settings: press and hold the on button (if any) or put a heavy object (for example, a book) on the scale for 10 seconds until the indicator flashes.

4. Common mistakes and their solutions

Even with the right connection, Xiaomi scales may not work properly, and below is a table of the most common problems and ways to fix them:

🔧 Additional Advice for Complex Cases:

• 🔄 If the scales are connected but the data is not updated, try forced synchronization: in Mi Fit, click on the scale icon. → Synchronize.
• 📵 If the scale is defined as an “unknown device”, remove it from the phone’s Bluetooth device list and reconnect.
• 🔋 For Mi Body Composition Scale 2 models, if an Error 500 error is made, a reset via the app will help: Profile → Devices → Weight settings → Drop it.

5. Notification setting and data export

Once you’re connected, set up automatic synchronization and export to other services (like Google Fit or Apple Health) to analyze the dynamics in one place.

📲 How to enable weighing notifications:

1. Open Mi Fit or Zepp Life.
2. Go to Profile → Devices → Your Scales → Notification settings.
3. Enable the Weighdown Notice option.
4. Choose the frequency of notifications (daily, weekly, or only for significant weight changes).

🔄 Synchronization with Google Fit/Apple Health:

• 📱 For Android: In Mi Fit, click Profile → Settings → Synchronize data. Select Google Fit and log in. Allow access to weight and activity data.
• 🍎 For iPhone: In Mi Fit, go to Profile → Settings → Apple Health. Turn on the switches for Weight and Body Composition. Confirm access in the pop-up window.

⚠️ Note: If the data does not appear in Google Fit after you set up sync, check it out:

• 🔒 Mi Fit app permissions in phone settings (Storage and Physical Activity must be enabled).
• 🔄 Manual sync: in Google Fit, click on your profile → Settings → Data management → Synchronize now.

💡

For accurate weight analysis, adjust your profile parameters in Mi Fit: sex, age, height and activity level. Without these data, the calculation of BMI and fat percentage will be incorrect.

6. Optimizing the work of the scales: how to extend the life of the battery and accuracy

Xiaomi scales are designed for 180-240 days of battery life, but if used improperly, the battery will run out in 2-3 months.

🔋 How to save charge:

• 📵 Turn off Bluetooth on your phone when you’re not using the scales (if background sync is enabled, they’ll waste a charge finding the connection).
• ⚡ Do not leave the scales on charging for more than 4 hours – this reduces the battery life.
• 🌡️ Keep the scales at a temperature of 10-35°C. Cold or heat accelerate discharge.

🎯 How to improve the accuracy of measurements:

• ⏱️ Weigh yourself at the same time (better on an empty stomach in the morning).
• 👣 Stand on the scales with bare feet, evenly spreading the weight.
• 🧼 Wipe the contacts on the scales with an alcohol wipe once a month (oxidation can distort the data).