This document outlines the features, usage, and maintenance of a smart scale designed for daily life measurements.

Function Description

The smart scale is primarily designed for measuring weight and body fat rate. It integrates with the Huawei Health app to provide a comprehensive overview of various fitness and health data. Beyond basic weight measurement, the scale can also measure body fat rate and heart rate, offering a more detailed insight into a user's physical condition. The device is capable of identifying multiple users, storing their data, and syncing it to the associated Huawei Health app for tracking and analysis. It supports setting weight goals, which can be monitored through the app. The scale also provides indicators and displays for various statuses, such as pairing, battery level, and measurement errors.

Usage Features

Pairing and Connecting: To begin using the scale, users need to install three AAA batteries and close the battery cover. The scale will power on automatically and display "8888" and "2Ero" sequentially, indicating it's ready for pairing, with the Bluetooth icon blinking. Users must then install the latest version of the Huawei Health app on their phone. The pairing process involves opening the Huawei Health app, navigating to "Devices" > "Add" > "Scales," selecting the scale, and touching "Pair." Onscreen instructions guide the user to wake up the scale by ensuring its LED indicator lights up. After selecting the scale, users follow further instructions to complete the pairing. It's crucial to enter user information correctly, including gender, age, and height, as this affects measurement accuracy. The scale is compatible with phones running Android 4.4 or later but not iOS. For full functionality, the Huawei Health app requires Notifications permission during the initial pairing. To unpair, users go to "Devices" in the Huawei Health app, select their device name, and touch "Unpair."

Setting Up User Information: The scale is intended for daily weight and body fat rate measurements. It is not suitable for individuals with implanted medical devices (e.g., pacemakers, cochlear implants) or pregnant women. Certain conditions, such as fever, osteoporosis, edema, or using an artificial kidney, can affect fat rate measurements, making the data reference-only. Users aged 18 and below, and 65 and above, can only measure weight and heart rate due to physiological reasons. Users can add up to 10 profiles in the Huawei Health app. To add a user, open the app, touch "Weight," then the profile icon in the top-right corner, go to "Manage users" > "Add," and follow the onscreen instructions. Correct entry of gender, date of birth, height, and initial weight is vital for accurate data. Existing user information can be edited by selecting the user's name on the "Manage users" screen. Users can also be deleted from this screen by selecting their name and touching "Delete user," then confirming with "OK." Weight goals can be set by going to "Me" > "Settings" > "Goals" in the Huawei Health app, selecting the desired weight, and touching "SAVE."

Starting the Measurement: Measurements can be initiated either through the Huawei Health app or directly on the scale.

Using the Huawei Health app: Open the app, touch "Weight" on the Health screen, ensure the correct user profile is selected, and tap lightly on the scale to activate it. Then touch "Measure" and follow instructions. Alternatively, go to "Devices," select the scale, tap lightly on the scale, touch "START," and follow instructions.
Directly on the scale: Step onto the scale barefoot and stand upright. The scale first measures weight, then other data like body fat (indicated by a "✔" icon) and heart rate (indicated by a "♥" icon). To skip heart rate measurement, step off the scale after weight is measured. Once complete, the data will sync automatically to the Huawei Health app when connected. If the scale displays "Err2" during direct measurement, it means the data is similar to existing records, and the scale cannot identify the user. Users should check and confirm their data in the Huawei Health app. If "----" is displayed, the scale cannot identify the user based on local data, requiring connection to the Huawei Health app, correct information entry, and a new measurement. For accurate heart rate data, users should be calm during measurement. For accurate weight data, the scale must be placed on a flat, hard surface, avoiding soft or uneven surfaces. For accurate body fat data, users should wear light clothing and stand barefoot. Consistency in measurement time and conditions daily is recommended for optimal data. The device is not suitable for individuals with implanted medical devices or pregnant women.

Measuring Data of Multiple Users: New users can associate their phones with the scale to measure weight and view data in the Huawei Health app. The scale attempts to identify the current user automatically. If "Err2" or "----" is displayed, manual confirmation or connection to the Huawei Health app is required. A scale can be paired with up to five phones but connects to only one at a time. Users can also be added directly within the Huawei Health app as described above.

Assigning Measurements: If "Err2" is displayed, it indicates that the current measured data is similar to other records, and the scale cannot identify the user. Users should check and confirm their data in the Huawei Health app.

Managing Body Fat Data: To ensure accurate user detection, connect the scale to the Huawei Health app, go to "Devices," select the device name, then "Manage data" > "Delete data," and remove unwanted weight data. Caution is advised when deleting user data, as it may impair the scale's ability to identify users. After clearing data, users can update personal data by performing a new measurement while connected to the app or by checking and confirming data in the app.

Indicator and Display: The scale uses various LED indicators:

"8888 2Ero": Startup status after battery installation.
Weight icon: Displays measured weight.
Body fat icon: Displays measured body fat rate.
Heart rate icon: Displays measured heart rate.
Blinking Bluetooth icon: Bluetooth connection not established, device ready for pairing.
Solid Bluetooth icon: Device paired over Bluetooth.
Updating icon: Scale is updating.
Up-to-date icon: Scale version is up to date.
"Lo": Low battery level.
"OL": Overweight.
No body fat data icon: No body fat data displayed.
No heart rate data icon: No heart rate data displayed.
"Err2": Measuring body fat rate, current data similar to other records, user not identified.
"Err9": Firmware update unsuccessful.

Creating a Record: Users can create a record of weight and body fat rate by opening the Huawei Health app, going to "Me" > "My data" > "Weight" > "Create a record," or by touching "Weight" on the home screen and then "Create a record."

Setting the Unit of Weight: The unit of weight can be set in the Huawei Health app to half-kilo, kilo, or pounds. To do this, open the app, go to "Me" > "Settings" > "Units," and select "Metric" or "Imperial." If "Units" is set to "Metric," touch "Weight unit" and select "Half-kilos" or "kg." If "Units" is set to "Imperial," touch "Weight unit" and select "lbs" or "kg."

Updating the Scale: To update the scale's firmware, connect it to the Huawei Health app, go to "Devices," select the device name, then "Firmware update" to view the current version. Touch "Check for updates" to search for available updates and follow onscreen instructions. Do not step on or press the scale during an update. If an update fails, repeat the steps. The Huawei Health app itself can also be updated by going to "Me" > "Check for updates" in the app.

More Guides:

Viewing Measured Data: Previously measured data can be viewed in the Huawei Health app by touching "Weight" and then the profile icon. This includes weight, fat, skeletal muscle mass, and daily, weekly, or monthly data. Users can select a specific user's name and touch "History" to view their data, including detailed information and body fitness reports.
Sharing Data: Measured data can be shared from the Huawei Health app by touching "Weight" on the home screen, then "Share" in the lower-right corner. Options include sharing to WeChat friends, WeChat moments, Weibo, or saving data locally.
Waking Up the Scale: The scale automatically turns off its screen and enters standby mode after a period of inactivity. To wake it up, simply step on the scale.
Restoring to Factory Settings: To restore the scale, connect it to the Huawei Health app, go to "Devices," select the device name, and touch "Restore factory settings." This action will clear all user information and data from the scale, so caution is advised.
Viewing SN: The 16-digit serial number (SN) can be found on the gift box or at the bottom of the scale.

Maintenance Features

Cleanliness: Keep the scale free from dust and oil stains.
Environment: Place the scale in a well-ventilated and dry environment to prevent rust. The ambient temperature should be between 5°C and 40°C. Extreme temperatures can affect the sensor, electronic components, and plastic cover.
Regular Cleaning: The scale is a measurement tool and should be cleaned periodically.
Battery Removal: If the scale will not be used for an extended period, remove the batteries.
Placement: Store the scale in a dry place, away from strong sunlight and dust.
No Disassembly: Do not uninstall or remove components from the scale.

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