Xiaomi’s smart scales are not just a body weight measurement device, but a full-fledged gadget integrated into the Mi Home or Zepp Life ecosystem. They analyze body composition, sync with a smartphone, and even offer health recommendations. However, even such an advanced device can show incorrect data due to failures, improper calibration or connection problems. In this article, we will discuss how to check the balance on Xiaomi’s scales in all available ways, from basic diagnostics to deep tuning.
It’s important to understand that “balance check” involves not only checking the readings with the reference, but also diagnosing the accuracy of measurements, calibrating sensors, and eliminating software errors. For example, if the scale of the Mi Body Composition Scale 2 constantly underweight by 200-300 grams, the problem may lie in the wrong setting of the user profile or mechanical displacement of sensors. We will look at solutions for all popular models, from the budget Xiaomi Smart Scale to the flagship Xiaomi Body Fat Scale 2.
Before you get to the instructions, make sure your scales are fully charged (the battery indicator does not flash red) and stand on a flat hard surface - a carpet or soft floor can distort the readings. If the problem persists, follow our recommendations in order: from simple to complex.
Basic Verification: How to Find Current Weight Without a Smartphone
Many users mistakenly believe that Xiaomi smart scales work only through the app. In fact, all models support offline mode, where the weight is displayed directly on the device's display.
- 🔋 Turn on the scales by pressing them with your foot or power button (if any). the screen should show the inscription 0.0 or --.
- 👣 Stand on the scale with bare feet, evenly spreading the weight. Wait for the stabilization of the numbers (usually takes 2-3 seconds).
- 📊 The screen will show you weight in kilograms or pounds (depending on regional settings). If the numbers flash, the scales can't determine the stable value.
If the scales are not included or do not show weight, check:
- 🔋 Battery charge: connect the scales to charge for 10-15 minutes (Type-C or Micro-USB connector depending on the model).
- 📱 Compatibility: Some models (e.g. Xiaomi Mi Scale 2) require pre-binding to an app.
- 🧲 Magnetic interference: remove nearby metal objects or other electronics.
⚠️ Note: If the scales show a weight of 0.0 or Err when you are present on them, this may indicate damage to the strain gauges.
2. Check through the Mi Fit or Zepp Life app
For accurate diagnostics and data analysis, you need to connect the scales to the official application. Xiaomi gradually transfers all devices from Mi Fit to Zepp Life, but the functionality remains similar.
- Install the app: 📱 For Mi Fit: Android/IOS. 📱 For Zepp Life: Android/IOS.
- Add the device: Open the app → Profile → Add the device → Libra. Select your model (e.g. Mi Body Composition Scale 2). Follow the instructions on the screen to pair over Bluetooth.
Check the readings:
- Stand on the scale. The data is automatically synchronized with the application.
- In the Measurements or History section, you will see a graph of weight changes, fat percentage, muscle mass, and other metrics.
If the scales are not synchronized with the application:
- 🔄 Reboot Bluetooth on your phone and reconnect.
- 📵 Make sure the scales are within a radius of 1-2 meters from the smartphone.
- 🔧 Update the firmware of the scales through the application (Settings section of the device) → Update of the PO).
Bluetooth on the phone |
Libra charged (indicator green)|
Appendix updated to the latest version|
The device is added to the user profile-->
3. Calibration of the scales: how to reset and adjust accuracy
If Xiaomi scales show a constant weight error (for example, always +500 g), they must be calibrated. Unlike mechanical scales, smart models are calibrated software.
Method 1: Automatic calibration through an application
Some models (e.g. Xiaomi Mi Body Composition Scale 2) support automatic tuning:
- Open Mi Fit or Zepp Life.
- Go to Profile → Your Device → Settings → Calibration.
- Follow the instructions on the screen (usually you need to stand on the scale 2-3 times in a row).
Method 2: Manual calibration using reference cargo
If automatic calibration is not available:
- Take an item with an exact known weight (e.g. a dumbbell of 5 kg or a bag of sugar of 1 kg).
- Put it in the center of the scales.
- If the difference is greater than ±100g, reset the settings (see the next section).
⚠️ Warning: Do not use liquids (such as a bottle of water) to calibrate, as their weight may vary due to evaporation or temperature.
| Model of weights | Does it support automatic calibration? | Maximum loading | Accuracy of measurements |
|---|---|---|---|
| Mi Body Composition Scale 2 | Yes. | 150 kg | ±50 g |
| Xiaomi Smart Scale 2 | No. | 150 kg | ± 100 g |
| Xiaomi Body Fat Scale 2 | Yes. | 180 kg | ±30 g |
| Mi Scale (1st generation) | No. | 150 kg | ± 150 g |
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If the scales show a weight with a large margin of error after calibration, try changing the surface. The ideal option is ceramic tiles or laminate. Carpet and wooden floors can distort the data.
4. Resetting: When and How to Do
If Xiaomi’s scales are not working properly (not turning on, showing Err, not synchronizing), you may need a complete reset, which deletes all stored data and returns the device to factory parameters.
Here's how to reset different models:
- 🔄 Mi Body Composition Scale 2: Hold the power button (if any) for 10-15 seconds. or flip the scales and press the Reset button in the battery compartment (use a clip clip).
The universal method (for all models):
- Turn off the scales from the application (Mi Fit → Profile → Device → Delete).
- Turn off Bluetooth on your phone, then turn it back on.
- Add the scales as a new device.
⚠️ Note: After the scales are reset, they will lose their binding to all accounts, and you will have to re-enter user data (height, age, gender) to correctly analyze body composition.
What if the reset didn't help?
5. Error Diagnostics: Decoding codes on the screen
Xiaomi scales can display various errors on the display. Here is a transcript of the most common:
| Error code | Reason. | Decision |
|---|---|---|
| Err or E1 | Overload (weight exceeds maximum) | Remove the extra load, stand up without shoes |
| E2 or Lo | Battery discharged. | Charge the scales for 2-3 hours |
| E3 | Unstable surface or vibration | Move the scales to a flat floor |
| E4 | Sensor error (mechanical damage) | Renovation required |
| -- (flashing) | No connection to the application or incorrect calibration | Reconnect the scales or perform a reset |
If E5 or other non-standard codes appear on the screen, it may indicate a critical firmware error.
- Try to update the software via Mi Home (if the scales are connected).
- Contact Xiaomi support via live chat in the app or at mi.com/support.
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If the scales show an E4 error, don't try to disassemble them yourself, it will lead to a loss of warranty.
Verification of accuracy: comparison with standards
To make sure that Xiaomi scales show the correct weight, do a test with control weights.
- Preparation: Take 3-4 items with a known weight (for example, a packet of flour 1 kg, a dumbbell 10 kg, a water bottle 1.5 l ≈ 1.5 kg). Make sure that the scales are on a level surface and are included.
- Testing: alternately place items on scales and record readings. Repeat measurement 3 times for each item.
Analysis of results:
- If the error does not exceed ± 100 g, the scales work normally.
- If the difference is greater, calibration or repair is required.
Critical information: Xiaomi scales can be inaccurate if you are standing on them in socks or shoes. For maximum accuracy, measure body weight barefoot, with an evenly distributed load on both legs.