How to Calibrate Xiaomi Mi Smart Scale 2: A Detailed Guide with Photos and Tips

Xiaomi Mi Smart Scale 2 is a popular device for monitoring weight, body composition and even indoor weather. However, over time, even the most accurate technique can begin to “lie”: show the wrong weight, overstate or understate data, give out errors when weighing, most often the problem lies in the imbalance of sensors, which is easy to correct by self-calibration.

In this article, we will discuss why the Mi Smart Scale 2 scales start to malfunction, how to calibrate them correctly through the Mi Fit app or manually, and provide care tips that will prolong the life of the device, you will learn what mistakes users often make when setting up, and how to avoid typical problems with measurement accuracy.

The reasons for the incorrect work of the scales Xiaomi Mi Smart Scale 2

Before you start calibrating, it's important to understand why the scales started lying.

• 🔋 Even if the light shows charge, the weak batteries can distort the sensors.
• 🏠 Uneven surface. Libras require a perfectly flat floor -- the slightest tilt leads to errors.
• 📱 Mi Fit app malfunctions. Synchronization glitches or an outdated version of software can affect data processing.
• 🔄 Mechanical damage: Falls, impacts or moisture entering the housing disrupt the work of the load gauges.
• ⚡ Electromagnetic interference: Working near microwaves, routers or powerful appliances distorts the signal.

If the scales show a weight difference of more than ±0.3 kg when weighing again, it is time to start calibrating. But first check the simple points: replace the batteries (use only alkaline AAA), set the scales on a hard flat surface (for example, tile), and reboot the Mi Fit application.

Preparation for calibration: what will be needed

For successful calibration of Xiaomi Mi Smart Scale 2, prepare the following tools and conditions:

Attention! Do not use objects with unstable weights (for example, bags of cereals or liquids in soft packaging) for calibration. The best option is metal weights or water bottles, the weight of which can be accurately calculated (1 liter of water = 1 kg at room temperature).

💡

If you don't have weights, use a bag of sugar (usually 1 kg) or a bottle of water of 1.5 liters (weight ~1.5 kg).

Method 1: Calibration through the Mi Fit application

The most reliable method is to use the official Mi Fit app.

1. Open Mi Fit and go to Profile → Devices → Xiaomi Mi Smart Scale 2.
2. Click on the three dots in the top right corner and select Device Settings.
3. Scroll down and find the Calibration of the scales (in some versions – Reset accuracy).
4. Follow the hints on the screen: the application will offer to stand on the scale and wait for the stabilization of the readings.
5. After the process is complete, synchronize the data and verify the accuracy with the control cargo.

If your Mi Fit version does not have Calibration, upgrade to the latest version via Google Play or the App Store. Alternatively, you can use manual calibration (described below).

Update the Mi Fit app to the latest version|

Make sure the scales are connected to Bluetooth|

Put the scales on a flat surface |

Clean the sensors with a dry cloth |

Method 2: Manual calibration (without application)

If Mi Fit calibration is not available or helpful, you can perform the procedure manually, which requires precision, but often saves you from serious failures.

1. Turn the scales on by pressing the glass panel. Wait for zeros (0.0).
2. Press and hold the 3-5 seconds switch until the CAL (calibration mode) symbol appears on the display.
3. Carefully place a reference weight (e.g. 10 kg) on the scale. Wait until the value flashes on the screen.
4. Take the load off and wait for the settings to be saved. Libra will automatically return to operating mode.

Important: If the scales show an Err error after manual calibration, repeat the procedure with another load (e.g. 5 kg instead of 10 kg), perhaps the standard you choose is too heavy for sensors.

How to check accuracy after calibration

Calibration is only half the story, so now you have to make sure that the scales are correct.

• 📊 Reference weight test: Weigh an object of known weight (e.g., a 1.5 liter bottle of water) and the error must not exceed ±50g.
• 🔄 Re-measurement. Stand on the scale. 3-5 The difference between the statements should be no more than ±0.2 kilogram.
• 🤝 If possible, check the readings with mechanical or electronic scales from the pharmacy.

If the error remains high after calibration, the problem may be in damaged sensors or a faulty board, in which case contact the Xiaomi service center - self-repair without experience can lead to final failure.

💡

If the scale after calibration shows a weight of 0.5-1 kg less than the real one, most likely, the zero-point settings have gone wrong. Recalibrate with a load of 1-2 kg.

Typical calibration errors and how to avoid them

Many users make the same mistakes that make calibration ineffective. Here's what you can't do:

⚠️ Attention! Never calibrate scales on soft surfaces (carpet, sofa, bed) and the sensors detect the deformation of the support, not your actual weight, which leads to gross errors in measurements.

• 🚫 Use uncertified weights, such as food bags or books, their weight may vary due to humidity or packaging.
• 🚫 Calibrate the scales immediately after the battery is replaced. Give the device 5-10 minutes to warm up the electronic components.
• 🚫 Press the scales during calibration, even light pressure distorts the sensor data.
• 🚫 Ignore firmware updates. Newer versions often fix bugs that affect accuracy.

Another common mistake is calibrating with wet feet, and the humidity on the glass panel creates additional resistance, and the sensors detect false weight. Always wipe your feet before weighing!

What if calibration doesn’t help?

If the Mi Smart Scale 2 continues to lie after all the manipulations, the reasons could be more serious:

If your scales are warranty, do not try to disassemble them yourself - this will void warranty obligations. In official Xiaomi service centers, calibration and diagnostics are carried out free of charge during the first year of operation.

Tips for caring for Xiaomi Mi Smart Scale 2

To ensure that the scales last long and accurately, follow these recommendations:

• 🧼 Clean the glass panel regularly with a soft cloth with a small amount of alcohol!
• 🔋 Change your batteries every 6 to 12 months, even if the scales are still working.
• 🌡️ Keep the scales in a dry place at a temperature of 10-35°C. Humidity and temperature changes spoil electronics.
• 📵 Do not place the scale near the sources of vibration (washing machine, refrigerator).
• 🔄 Calibrate the scales every 3-6 months, even if they work normally!

Fun fact: The Mi Smart Scale 2 scale uses Bioelectrical Impedance Analysis (BIA) technology to measure body composition, and the accuracy of this data depends not only on calibration, but also on your hydration level, for example, after drinking heavily, fat can be underestimated by 2 to 3 percent!

💡

For maximum accuracy, weigh yourself in the morning on an empty stomach, after using the toilet and without clothes.

FAQ: Frequent questions about Xiaomi Mi Smart Scale 2 calibration