How to weigh in on Xiaomi smart scales: full instruction from preparation to analysis of results

Xiaomi’s smart scales (including the Mi Body Composition Scale 2, Xiaomi Smart Scale 2, and Mi Scale) have become an integral part of a healthy lifestyle for millions of users. They not only show weight, but also analyze body composition: fat percentage, muscle mass, water level, and even bone density. However, many face problems: scales show different values when re-weighing, do not sync with the application or give clearly inaccurate data. In this article, we will discuss how to weigh Xiaomi’s scales correctly to get the most accurate results, avoid typical errors, and learn how to interpret indicators.

It's important to understand that smart scales are not mechanical devices, but complex devices with bioimpedance sensors, and their accuracy depends on a variety of factors, from how you stand on the platform to how you hydrate your body. We'll go through each step in detail, from preparing the scales for first use to analyzing the dynamics of changes in the Mi Fit or Zepp Life app. And if your scales stop working or show absurd numbers, at the end of this article you'll find a checklist for diagnosing malfunctions.

Preparing Xiaomi’s weights for first use

Before the first weighing, you need to adjust the scales correctly and connect them to your smartphone. Even if you bought a used scale or after a long break, this step is mandatory.

Start with a physical installation:

• 📦 Unpack the scales and remove the protective film from the contact areas (they are easy to miss - they are located under your feet).
• 🔋 Insert batteries (usually 4)×AAA lithium CR2032 In the Mi Body Composition Scale 2, the battery compartment is hidden under the rubber legs - gently tuck them in.
• 📍 Put the scales on a flat, hard surface (tile, laminate, wood) and the carpet or soft floor will distort the readings.

Next, the connection to the application:

• 📱 Install the official Mi Fit app (old models) or Zepp Life (newer ones) in China, which uses Mi Health, and is not suitable for global weights.
• 🔄 Turn on Bluetooth on your smartphone and launch the app. Go to Profile → Add the device → Libra.
• ⚙️ Follow the instructions on the screen: the scales should flash the indicator (on some models sounds voice greetings).

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If the scales are not in the app, try resetting them to factory settings: press and hold the on button (or step on the scales and keep your foot on) for 10 seconds until the indicator blinks.

Once the scale is successfully connected, the firmware will automatically update (if a new version is available). The firmware update is critical for accuracy, since older versions of the software have errors in the fat mass calculation algorithms. You can check the firmware version in the application: Device → Settings → Device Information.

How to stand on the scale Xiaomi for accurate readings

It's a little complicated, you know, you get stuck and weighed yourself, but the position of your body on the platform has a direct impact on the accuracy of your bioimpedance analysis, and even a small shift can distort your body composition by 5 to 15 percent!

Follow these rules:

• 👣 Barefoot and dry feet, wet or wet feet will disrupt contact with the electrodes, wipe your feet with a towel before weighing.
• 🧍 Stand smoothly: legs shoulder wide, weight evenly distributed. Don't lean on one leg or hold on to the support.
• 🕒 Time of day: optimally weigh yourself in the morning on an empty stomach after going to the toilet. in the evening, the weight can vary by 1-2 kg due to the food and liquids eaten.
• 📵 No foreign objects: remove socks, watches, bracelets. Metal accessories (for example, a chain around the neck) can distort the bioimpedance analysis.

Pay special attention to the contact areas on the scales. In Xiaomi Smart Scale 2 models, they are located in the depressions under the feet - if you get up crooked, the contact will be interrupted, and the scales will show a Lo (low resistance) or Err error. In this case, rearrange your legs and repeat the weighing.

⚠️ Warning: If you have recently exercised or taken a hot shower, wait 2-3 hours before weighing. Increased sweating and dilated blood vessels will distort fat mass and water levels in the body.

Decoding indicators: what do the numbers on the screen and in the application

Xiaomi’s smart scales measure not only weight, but up to 13 body composition parameters (depending on the model), and let’s figure out what each indicator means and what to look for:

It's important to understand that the norms are individual, depending on age, gender, activity level, for example, athletes may have lower body fat due to muscle development, and older people may have higher fat due to natural muscle loss.

In Mi Fit or Zepp Life, you can see the charts, and you can look at trends, not single values, for example, if your weight is ±0.5 kg, that's normal because of changes in water balance, but if you have a steady increase in fat mass at the same weight, you can see muscle loss (e.g., if you have a poor diet).

Typical Weighing Mistakes and How to Avoid Them

Even experienced Xiaomi smart scale users sometimes make mistakes that distort the results, and here are the most common ones:

• ⏱️ Weighing too fast. The scales don't go on right away -- wait 2-3 seconds after you've stood on the platform. If you see 0.0 and you come off right away, the data won't be saved.
• 🔋 Low-charge batteries, the scales can show the weight correctly, but the bioimpedance analysis will be inaccurate. Change the batteries every 6-12 months.
• 📶 Weak Bluetooth signal. If the smartphone is in another room, the data may not sync. Keep the phone close (within a radius of 2-3 meters).
• 🧊 Cold feet. If your feet are cold, your skin resistance increases, and your scales lower your fat percentage.

Another common problem is that scales show an Err or Lo error, which means that you couldn't measure bioimpedance.

• 🧴 Dry or rough skin on the feet → Wet your feet with water or use a moisturizer.
• 👟 Thick calluses → Try to stand on the scales after showering when the skin softens.
• 🔌 Poor contact with electrodes → Wipe the contact areas on the scales with an alcohol napkin.

⚠️ Note: If the scales consistently show an Err error even after all the manipulations, check the integrity of the contact areas. In Mi Body Composition Scale 2 models, they sometimes peel off from the board - this is a factory defect, contact the service center.

How to sync data with Mi Fit and other applications

By default, Xiaomi scales transfer data to Mi Fit or Zepp Life, but they can be integrated with other services: Google Fit, Apple Health, Yandex.Health.

1. Open Mi Fit and go to Profile → Settings → Account Management.
2. Select a sync service (like Google Fit) and log in.
3. Turn on the switch to sync weight data.

If the data is not synchronized:

• 🔄 Restart Bluetooth on your smartphone.
• 📥 Update the Mi Fit app to the latest version.
• 🗑️ Clear the app cache in the phone settings (Settings) → Annexes → Mi Fit → Memory. → Clear the cache).

Scales connected to Mi Fit|Bluetooth enabled on phone | Mi Fit app updated | Data allowed for synchronization in settings | Attempting to re-weigh-->

For advanced users, if you want to export data to Excel or Google Sheets, use the Mi Health Platform (Xiaomi account is required) to download the full measurement history in CSV format.

Xiaomi Calibration Scales: When and How to Conduct It

Unlike mechanical scales, Xiaomi smart scales do not require regular calibration – their sensors are calibrated in the factory.

• 📉 Libra shows weight with constant error (±1 kg or more compared to the reference weights).
• 🔄 After replacing batteries or updating firmware.
• 🚚 After transportation (for example, if the scales fell or were vibrated).

For calibration:

1. Make sure the scales are on a level surface.
2. Stand on the scale and wait for a stable weight reading (without bioimpedance analysis).
3. Compare it to a reference weight (e.g., pharmacy weights). If the difference is greater than 0.5 kg, reset:

1. Press and hold the on button (or step on the scale) for 10 seconds.


2. The scales will blink and reset.




3. Reconnect them to the Mi Fit app.

If the scales are still lying after reset, the problem may be the damaged sensors, in which case contact the service center - self-repair is not recommended.

Xiaomi weight models comparison: which is better to choose for accurate measurements

Not all Xiaomi scales are the same – the accuracy of measurements depends on the model.

For maximum accuracy, choose models with four electrodes (two for each leg) - they give more stable bioimpedance. In budget scales (for example, Xiaomi Smart Scale 2), the electrodes are located only under the heels, which reduces the accuracy of body composition analysis.

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If you care about not only body weight, but also muscle/fat dynamics, choose models that support 10+ parameters (for example, Mi Body Composition Scale 2).

Frequent faults and ways to eliminate them

If Xiaomi scales stopped working correctly, use this diagnostic manual:

If neither method worked, check the scales on another smartphone (such as a friend or relative).If the problem persists, it is a hardware malfunction and the scales need repair.

⚠️ Warning: Don’t take the scales apart on your own, it will lead to loss of warranty. Xiaomi models often use adhesive joints, and once disassembled, it is almost impossible to assemble them back without damage.

FAQ: Answers to Frequent Questions About Xiaomi Weights