Xiaomi’s smart scales (including the Mi Smart Scale 2, Xiaomi Body Composition Scale 2, and Mi Body Fat Scale) have become an integral part of the brand’s health ecosystem, not only measuring weight, but also analyzing body composition, syncing with the Mi Fit app, and integrating with other Xiaomi gadgets, but many users face difficulties when first connecting or setting up — especially when it comes to Bluetooth 5.0 models or Wi-Fi support (as in Xiaomi Smart Scale 3).
In this article, you will find step-by-step instructions for setting up Xiaomi scales – from unpacking to calibrating and eliminating typical errors. We're going to take a look at the connectivity of Android and iOS, explain how to get on a scale to measure accurately, and tell you what to do if the device doesn't sync. And if you've tried to adjust the scales, but they show the wrong data, at the end of the article, there's a lot of information. FAQ case-solution.
1. Preparation of Xiaomi scales for the first inclusion
Before setting up, make sure you unpack and prepare the device correctly.Combined with Xiaomi scales should be:
- 📦 Scales themselves (with a protective film on the touch panel)
- 🔋 4 type batteries AAA (In some models, a built-in battery)
- 📄 Short instructions in several languages (including Russian)
- 🔑 Key to remove the battery compartment cover (if provided)
The first thing you need to do is install batteries. Open the compartment lid (usually on the underside of the scale) and insert the batteries while observing polarity. If your model has an integrated battery (such as the Xiaomi Smart Scale 3), connect the device to the network using the device. USB-C 1–2 hour cable for initial charging.
⚠️ Note: Do not use batteries from different manufacturers or with different levels of charge - this can lead to unstable balances and measurement errors.
After the batteries are installed, the scales must automatically turn on (the indicator on the display or backlight will light up).
- Check if the batteries are installed correctly.
- Press the scales with your foot – some models are activated only under load.
- If the indicator flashes red, the batteries are discharged or installed incorrectly.
2. Installation and configuration of the Mi Fit application
Xiaomi scales work only in tandem with the official Mi Fit app (formerly Zepp Life).
- 🤖 For Android: Google Play
- 🍎 For iOS: App Store
After installation:
- Launch Mi Fit and register (you can use Xiaomi Account, Google or Apple) ID).
- Log in and fill in the basic data: gender, age, height and weight target, which are critical to accurate body composition analysis!
- Go to the Devices section → Add the device and select Libra.
The app will offer Bluetooth and notifications — allow access, otherwise the scales will not be synchronized. If you have a Xiaomi Smart Scale 3 with Wi-Fi support, you will also need a 2.4 GHz network connection (5 GHz is not supported!).
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If you already have other Xiaomi devices (like a wristband or watch), link them to the same Mi Fit account to make it easier to sync your health data.
3. Connecting Xiaomi scales to a smartphone
Now, to the most critical stage, which is pairing scales with a smartphone, follow the instructions.
- Activate Bluetooth on your phone and make sure the scales are on (the indicator is on or blinking).
- In the Mi Fit app, click Add Device → Libra.
- Stand on the scales – they should show your weight (possibly with an error, since the calibration has not yet been performed).
- Wait for the sound signal or vibration – this means that the scales are ready to pair.
- On the phone, confirm the connection in the Mi Fit application.
If the scales are not connected:
- 🔄 Reboot Bluetooth on your phone (turn off and turn on again).
- 📱 Make sure your smartphone doesn’t have an active power saving mode – it can block the connection.
- 🔋 Check the battery power of the scales (if the indicator flashes red - replace the batteries).
- 🚫 Remove the scales from the list of conjugate devices in your phone’s Bluetooth settings and try again.
Bluetooth on your phone is on|Libras are on and show the indicator|Mi Fit app updated to latest version|The device is not connected to other gadgets|Batteries charged or scales connected to the network-->
For Wi-Fi models (e.g. Xiaomi Smart Scale 3):
- After pairing over Bluetooth, the application will offer to connect to the network.
- Select your Wi-Fi network (2.4GHz only!) and enter your password.
- Wait for confirmation of connection - the scales flash green.
Calibration and first measurements
Once connected, Xiaomi scales will require calibration, which is necessary for accurate measurements.
- Stand on the scales with bare feet (socks or slippers distort the results).
- Spread the weight evenly – don’t lean on one leg.
- Stand still until a stable value appears on the display (usually 3-5 seconds).
- After the sound signal, get off the scale - the data is automatically synchronized with Mi Fit.
In the app, you will see not only weight, but also additional metrics:
| Parameter | What does it mean? | Normal values |
|---|---|---|
| Weight. | Total body weight | Individually |
| IMT (Body mass index) | Weight-to-height ratio | 18.5–24.9 |
| Percentage of fat | Percentage of adipose tissue | Men: 10–20 percent, Women: 20–30% |
| Muscle mass | Muscle weight without fat and water | Depends on gender and activity level |
| Water level | Percentage of fluid in the body | 45–65% |
⚠️ Attention: The first 2-3 measurements may be inaccurate, which is normal, Libras need time to "learn" your parameters, and for stable results, weigh at the same time (preferably on an empty stomach in the morning).
If the scale shows clearly incorrect data (for example, the weight differs by 5).+ kilogram):
- 🔄 Recalibrate the device: stand on the scale, wait for a stable value, then go down and repeat the measurement.
- 📏 Check if your growth is entered correctly in the Mi Fit app.
- 🧘 Then, put it on a straight surface (not a carpet or a soft coating).
Why does Xiaomi’s scale show different weights when measured repeatedly?
5. Set up notifications and synchronize with other services
To ensure that the data from the scales is automatically saved and analyzed, set up integration with other services:
- 📊 Google Fit: In Mi Fit, go to Profile → Settings → Synchronize data and enable the option.
- 🍎 Apple Health: For iOS users, allow access in the app settings.
- 🌐 Third-party apps: Xiaomi supports data export to Strava, MyFitnessPal and other services.
You can also set up notifications:
- Open Mi Fit and go to Devices section → Your scales. → Notification settings.
- Turn on the option of Weighing Reminder and select a convenient time.
- Activate Progress Notifications to receive weekly reports.
If the data is not synchronized:
- 🔄 Re-launch the Mi Fit app.
- 📱 Check if Bluetooth and Internet are on your phone.
- 🔋 Make sure the scales are not discharged (the indicator does not flash red).
- 📲 Update the Mi Fit app to the latest version.
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For stable synchronization, keep your phone at a distance of no more than 5 meters from the scales. Walls and furniture can weaken the Bluetooth signal.
6. Resetting and troubleshooting
If Xiaomi scales are not working correctly (not turning on, not synchronizing or showing errors), reset:
Soft discharge (reset)
- Remove the batteries for 10 seconds, then insert back.
- Or (for models with a battery) hold the reset button (usually under the lid) for 5-10 seconds.
Hard reset (return to factory settings)
For this:
- Hold the power button (if any) or tap the touch panel of the scales and hold for 15 seconds.
- The scales will flash red and reset.
- After resetting, you will have to reconnect them to Mi Fit.
Common mistakes and their solutions:
| Mistake. | Reason. | Decision |
|---|---|---|
| Libras not included | Batteries discharged. | Replace the nutrients |
| Error or --- | Unstable surface or overload | Move the scales to a flat floor, check the maximum load (usually 150-180 kg) |
| Not synchronized with Mi Fit | Problems with Bluetooth or Wi-Fi | Reboot phone and scales, check network connection |
| Wrong weight | Incorrect calibration | Take 3-5 consecutive measurements and use the average. |
⚠️ Warning: If the scales are still not working after reset, check if moisture has fallen under the touch panel. In this case, dry the device for 24 hours (do not use a hair dryer!).
7 Additional features and hidden capabilities
Xiaomi scales have several hidden features that many people don’t know about:
- 👶 Mode for children: In Mi Fit you can create a separate profile for a child (weight from 5 kg).
- 🏋️ Sports mode: Analyzes the dynamics of muscle mass during regular training.
- 📈 Data export: In the weight settings, you can save the measurement history in CSV for analysis in Excel.
- 🔒 Protecting against strangers: Enable the option Only my data so that the scales do not react to other people.
For Wi-Fi models (Xiaomi Smart Scale 3):
- 🌐 You can connect scales to Xiaomi smart home and manage them through Mi Home.
- 📱 Data is automatically synced to the cloud even if the phone is turned off.
- 🔄 Supported OTA-Firmware update (check in the weight settings).
If you use a scale with the Mi Band or Xiaomi Watch, Mi Fit will generate a comprehensive health report, including:
- 💤 Quality of sleep
- 🏃 Activity level
- ❤️ Heart rate
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To make the scales last longer, wipe the touch panel with a soft cloth without alcohol. Avoid getting water under the body - despite the declared moisture protection, prolonged contact with the liquid can cause the device to fail.