How to set up Xiaomi floor scales: a complete guide from connection to calibration

Xiaomi floor scales are not just a weight measurement device, but a smart device that integrates into the Mi Home ecosystem and helps track health dynamics. However, many users face difficulties in the first setup: the scales do not connect to the phone, show incorrect data or not turn on at all. In this article, we will analyze all the stages of adjustment, from unpacking to fine calibration, and also explain how to avoid typical errors and achieve maximum accuracy of measurements.

The peculiarity of Xiaomi’s smart scales (Mi Body Composition Scale 2, Smart Scale 2, Mi Scale, etc.) is that they use bioimpedance analysis technology to measure not only weight, but also fat, muscle mass, body water levels. This requires the right initial setup, otherwise the indicators will be distorted. If you just bought the device or want to reconnect it after a reset, follow our instructions - it is suitable for all modern models of the brand.

Preparation of scales for first inclusion

Before setting up, make sure you follow all the preliminary steps, which will save you from connection problems and incorrect readings.

• 📦 Unpack the scales and check the configuration: the scales themselves, 4 batteries of the type AAA (sometimes included in the package, instructions in several languages (including Russian).
• 🔋 Set the batteries polarly, and the compartment is usually on the bottom panel -- pull the latch or move the lid.
• 📱 Prepare your smartphone: install the Mi Fit app (for the first time) Android/iOS) or Zepp Life (if you have a new model) upgrade to the latest version.
• 🌡️ Check operating conditions: the room temperature should be 10–40°C, humidity no higher than 85%, cold or dampness distorts bioimpedance.

If the scales are not turned on after installing the batteries, check:

1. Correct installation of power supplies (plus to plus, minus to minus).
2. Batteries are dead – even new ones can be discharged.
3. Contacts in the compartment: Sometimes they become oxidized or contaminated.

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If Xiaomi scales don’t respond to pressing, try resetting them to factory settings: press and hold the power button (if any) or put the scales on a flat surface and wait 10 seconds – they should automatically turn on.

2. Connecting scales to a smartphone via Mi Fit

Without synchronization with the application, the scales will work like normal mechanical scales, showing only weight without analyzing body composition.

1. Open the Mi Fit app and log in (or sign up if you don’t have a Xiaomi account).

If the scales are not in the annex:

• 🔄 Reboot Bluetooth on your smartphone (turn off and turn on again).
• 📵 Make sure the distance between the phone and the weights is less than 10 meters.
• 🚫 Turn it off. VPN Proxies – they can block the connection to Xiaomi servers.

Calibration of weights for accurate measurements

Even after you've connected, the scales can show the wrong weight, because the factory calibration gets lost in transportation, to calibrate the device.

1. Put the scales on a flat, hard surface (not on a carpet or soft floor!).
2. Turn them on when you step on the platform and wait for zeros (0.0) to appear.
3. Get off the scale and wait 5-10 seconds – they should automatically reset.
4. Repeat the weighting 2-3 times. If the readings differ by more than 0.2 kg, perform manual calibration.

For manual calibration (if automatic does not help):

1. Take an object with a known weight (for example, a weight of 5 kg or a bottle of water of 1.5 l ≈ 1.5 kg).
2. Put it in the center of the platform and record the testimony.
3. If the difference is greater than ±0.3 kg, reset the weight settings (press the power button for 15 seconds) and reconnect to Mi Fit.

4. User profile setting for bioimpedance

To properly analyze your body composition (fat, muscle, water, bone), the scales need your personal data, without which the readings will be conditional, to adjust the profile:

1. Open Mi Fit and go to Libra → Profile Settings.
2. Indicate: 👤 Gender (male/female). 📏 Growth (in cm). 🎂 Age (exact date of birth). 🏃 Activity level (sedentary, moderate, active).

Save the changes and perform the first weigh-in.

If you don't specify height or age, the scales will calculate the percentage of fat according to standard formulas, which will give an error of up to 5-7%! For example, if you are 180 cm tall and 80 kg weight, an error in indicating growth of 5 cm will distort the fat index by 2-3%.

For maximum accuracy:

• 🕒 Weigh yourself in the morning on an empty stomach after going to the toilet.
• 🚿 Do not take measurements immediately after showering or exercising (wait 2-3 hours).
• 👟 Stand on the scales with bare feet – socks or slippers distort bioimpedance.

5. Update of the firmware of the scales

Like any smart device, Xiaomi scales receive firmware updates to improve accuracy and add new features.

1. Open Mi Fit and go to Profile → Your Devices → Libra.
2. Click on the three dots in the upper right corner and select Update firmware.
3. If a new version is available, confirm the installation and wait until the completion (the scales must be on and be near the phone).

You can't interrupt the update, it can cause the device to crash.

• 🔄 Reset the scales (press the button for 10 seconds).
• 📱 Restart Mi Fit and Repeat Update.
• 🌐 Check the Internet connection – without it, the firmware will not boot.

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Xiaomi firmware updates for scales are rarely released (1-2 times a year), but they are critical for correcting bioimpedance errors and compatibility with new versions of Mi Fit.

6. Removal of common errors

Even after you set the scales right, they can work incorrectly, and we'll look at the typical problems and their solutions.

⚠️ Note: If the scales show weight but don't transfer data to Mi Fit, check the app's permissions. On Android, go to Settings → Annexes → Mi Fit → Permissions and enable Bluetooth access, Warehouse and Notifications.

Error "----" or flashing numbers

Reasons:

• Batteries are discharged (replace them).
• Libra overloaded (maximum - 150-180 kg depending on the model).
• Sensor is damaged (repair required).

Libras do not keep the history of measurements

Decisions:

• Check synchronization with Mi Fit (in profile settings).
• Update the application and firmware of the scales.
• Remove the device from Mi Fit and reconnect.

Fat/muscle indications are clearly incorrect

What to do:

• Check the height, age and gender listed in the profile.
• Weigh 2-3 times in a row - bioimpedance is sensitive to the position of the legs.
• Compare the data with other weights (such as in the gym) – an error of up to 3% is considered normal.

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If Xiaomi scales after the update stopped showing weight correctly, try resetting them to factory settings: press and hold the power button (if any) or remove the batteries for 1 minute.

7 Additional features and hidden capabilities

Xiaomi scales are more than just weighing. Here are some useful tips:

• 👶 Mode for children: in Mi Fit you can create a separate profile for a child (from 5 years old) to track his height and weight.
• 🐕 Weighing animals: Put your pet on a scale and hold it to record the weight (the data will not be stored in history, but will appear on the screen).
• 📊 Data export: Mi Fit can unload the measurement history in CSV or sync with Google Fit/Apple Health.
• 🔒 Protection against accidental pressing: if the scales are triggered by vibrations (for example, from steps next to each other), turn off the Auto-On feature in the device settings.

For models with backlit screen (for example, Mi Smart Scale 2), you can configure:

• Brightness of the display (in Mi Fit).
• Units of measurement (kg, lb, st).
• Display additional metrics (body mass index, metabolic age).

FAQ: Frequent questions about Xiaomi weights