Connecting Xiaomi smart scales to a smartphone: from unpacking to the first measurements

Xiaomi’s smart scales are no longer exotic — they’ve become an integral part of the health ecosystem for millions of users. But even with a simple device like scales, beginners often have questions about why the app doesn’t see the device, how to get on the platform, or what to do if the data isn’t synchronized. This article will help you understand everything from model selection to the intricacies of profile customization in Mi Fit or Zepp Life.

We're going to look at not only basic Bluetooth connectivity, but also rare cases -- like what to do if the Xiaomi Mi Body Composition Scale 2 scales refuse to work with an iPhone, or how to reset if the previous owner hasn't untied the device, and what body parameters different models measure and how to interpret them correctly, and if you've just unpacked the box or have been trying unsuccessfully to sync the gadget for several hours, this is the guide for you.

Which Xiaomi scale model did you choose? A brief overview of the features

Before you connect, you need to know what scales you have in your hands. Xiaomi has released several models, and their functionality is markedly different.

• 📦 Mi Body Composition Scale 2 is the most popular model with 13 parameters (weight, BMI, muscle mass, bone mass, water in the body, etc.) Works via Bluetooth 5.0, compatible with Mi Fit and Zepp Life.
• 💎 Xiaomi Smart Scale 2 is a budget version with basic features (weight, BMI, fat mass). No display, data only in the application.
• 🔋 Mi Smart Scale (1st version) is an outdated model with a minimum set of sensors.
• 🏋️ Xiaomi Body Fat Scale – a specialized model for athletes with advanced body composition analysis.

If you're not sure about the model, look at the box or the back of the scales -- there should be a sticker with a name on it. You can also tell by design: the Mi Body Composition Scale 2 has a round display and a glass surface, and the Smart Scale 2 is a completely smooth platform without a screen.

Not only does the model determine the parameters you measure, but the connection process depends on it. For example, the Smart Scale 2 doesn't have its own display, so all the data (including weight) is displayed only in the app. And the Mi Body Composition Scale 2 shows the weight on the screen, but you still need to sync with your smartphone to analyze the body composition in detail.

What you need to connect: preparing a smartphone and scales

Before you start syncing, make sure you have everything you need:

• 📱 Smartphone on Android 6.0+ or iOS 10.0+ Bluetooth 4.0 (or newer).
• 🔄 Mi Fit or Zepp Life (depending on the scale model) can be downloaded from Google Play or the App Store.
• 🔋 Charged scales. Most models run on 4 batteries. AAA, But some (such as the Mi Body Composition Scale 2) have a built-in battery and charge on the back of the battery. USB-C.
• 📶 Stable Internet connection (only for first setup and firmware updates of scales).

If you have a removable battery scale, remove the protective film from the battery compartment before you first turn on, which is a common reason why the device does not turn on. For models with a battery (for example, Mi Body Composition Scale 2), check that they are at least 20% charged, otherwise the synchronization may be interrupted.

Also, look at the region of scale purchase: Some models (especially those purchased on AliExpress or in Chinese stores) may have firmware for the local market, which sometimes causes problems connecting to Xiaomi’s European or Russian servers, in which case it may be necessary to change the region in the application.

Step-by-step: how to connect Xiaomi scales to the phone

The synchronization process is almost the same for all models, but we’ll take a look at the most popular one, the Mi Body Composition Scale 2. If you have a different model, the Differences will be minimal.

Step 1: Installation and configuration of the application

1. Download and install Mi Fit (for older models) or Zepp Life (for new ones).
2. Sign up or sign in to your Xiaomi/Zepp account. If you don’t have an account, create it via email or phone number.
3. Specify your height, weight, age and gender - this is necessary for the correct calculation of body parameters.

Step 2: Activation of the scales

1. Stand on the scales with bare feet (this is important for accurate measurement of body composition!).
2. Wait for your weight (for models with a display) or the indicator blink (for Smart Scale 2) to appear on the screen.
3. The scales will automatically turn on and begin searching for the device to synchronize.

Step 3: Connect via the application

1. In the Mi Fit/Zepp Life app, go to Profile → Add the device.
2. Select Libra category and follow the instructions on the screen.
3. When the app finds your scales, confirm your connection. Some models will need to enter the code from the scale screen (for example, 0000 or 1234).

Step 4: First synchronization

1. Once connected, stand on the scale again. Data should automatically go to the application.
2. Check that all parameters (weight, percentage of fat, muscle mass) are displayed correctly.

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If the scales don't connect the first time, try rebooting Bluetooth on your phone: turn it off and turn it back on in the settings. Also make sure the scales are on a flat surface - tilting can interfere with sensors.

If you've made a mistake at some point, don't panic. In the next section, we'll look at the most common problems and their solutions.

Common mistakes and their solutions

Even if the instructions are followed correctly, Xiaomi scales sometimes refuse to connect. Here are typical scenarios and ways to fix them:

If none of these things worked, try resetting the weights.

1. Turn the scales over and find a small hole with the inscription RESET.
2. Insert a paper clip or toothpick into it and hold for 5-10 seconds.
3. The scales will reset and be ready for a new connection.

Important: If you bought a scale from hand, be sure to reset before first using it, otherwise your weight and body composition data can be sent to the previous owner!

How to measure weight and body composition: tips for accuracy

Xiaomi’s smart scales measure not only weight, but also body fat percentage, muscle mass, body water level, and other parameters, but the accuracy of these data depends on the correctness of use.

• ⏰ Measurement time: Weigh yourself in the morning on an empty stomach after going to the toilet, which will give the most stable results.
• 👣 Leg position: Stand on the scales with bare feet, placing the feet on metal sensors (usually marked on the platform).
• 📅 Regularity: Measure your weight at the same time of day, preferably daily, so it's easier to track your weight.
• 🚫 What to avoid: Do not weigh yourself after intense exercise, taking large amounts of fluids or alcohol - this will distort body composition indicators.

For maximum accuracy, it is also important:

• Use scales on hard surfaces (tile, laminate), carpets or soft coatings absorb vibrations, which affects the sensors.
• Don't move during the measurement. Even a slight movement can lead to error.
• Update the firmware of the scales through the app. Xiaomi regularly releases updates that improve the accuracy of the sensors.

If you care about not just the numbers on the screen, but also the interpretation, check out the Analytics section of the Mi Fit or Zepp Life app, where you can see graphs of weight changes, fat percentages, and even nutritional recommendations.

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To accurately measure body composition (fat, muscle, water), Xiaomi scales use the bioimpedance method – a weak electric current passes through the body. So it is important that your feet are clean and dry, and the sensors on the scales are not dirty or moist.

Sync with other services: Google Fit, Apple Health, Strava

One Mi Fit or Zepp Life app is often not enough to fully track health, and Xiaomi scales can be integrated with other popular services:

• 📊 Google Fit: Connects via Mi Fit settings in the Accounts section → After synchronization, data on weight and body composition will be automatically sent to Google Fit.
• 🍎 Apple Health (HealthKit): For iPhone, go to Profile in Mi Fit → Settings → Apple Health and enable data transfer.Please note that not all parameters (such as muscle mass) can be synchronized.
• 🏃 Strava, MyFitnessPal, FatSecret: These services are usually connected via Google Fit or Apple Health as an intermediary. For example, MyFitnessPal allows you to import weight data from Google Fit.

If the synchronization is not working:

1. Check that the Mi Fit/Zepp Life app settings allow data transfer.
2. Update the app to the latest version.
3. Reboot your smartphone – sometimes it helps to “wake up” the background synchronization processes.

For iPhone users, the important thing is that Mi Fit may not request access to Apple Health immediately, but only after the first successful measurement. If you plug in the scales but the data is not transmitted to HealthKit, try weighing again, after which a window with a request for permission should appear.

Updating the firmware of the scales: why and how to do it

Like any smart device, Xiaomi scales receive firmware updates periodically.

• 🎯 Accuracy of sensors (especially important for measuring body composition).
• 🔋 Energy efficiency (for models with a battery).
• 📶 Stability of Bluetooth connection.
• 🛡️ Security (closing vulnerabilities).

To update the firmware:

1. Open the Mi Fit or Zepp Life app.
2. Go to the section with your weights (usually in Profile → My devices).
3. If an update is available, you will see a notification. Click Update and wait for the process to complete.
4. Don’t move away from the scales or turn off Bluetooth during the upgrade.

If the update is hanging:

⚠️ Note: If the refresh process lasts more than 15 minutes and the indicator on the scales does not blink, try resetting the scales (remove and stand on them again) and try again. If the problem recurs, check the stability of the Internet connection – sometimes slow Wi-Fi or mobile Internet interferes with the download of firmware.

FAQ: Frequent questions about Xiaomi weights