This document provides an instruction manual for the Smart Body Fat Scale, designed to help users conveniently measure various body composition metrics.

Function Description

The Smart Body Fat Scale is a comprehensive body composition analysis device that measures:

Body Weight: Overall mass of the user.
Body Balance: An indicator of weight distribution.
BMI (Body Mass Index): A measure of body fat based on height and weight.
Body Fat Rate: Percentage of fat in the body.
Visceral Fat: Fat stored around the organs in the abdomen.
Body Water: Percentage of water in the body.
Skeletal Muscle Rate: Percentage of skeletal muscle in the body.
Muscle Mass: Total mass of muscle in the body.
Bone Mass: Total mass of bone in the body.
Protein: An indicator of protein levels in the body.
BMR (Basal Metabolic Rate): The number of calories required to keep the body functioning at rest.
Body Age: An estimation of the body's biological age.
Heart Rate: The number of heartbeats per minute.
Heart Index: A derived metric related to heart health.

The scale connects to the "Onfit" mobile application via Bluetooth, allowing users to track their data over time. The app also includes features like:

Baby Mode: Allows users to weigh a baby by first weighing themselves and then holding the baby.
Height Record: For users under 16 years old, height information can be manually added to the app.
User Management: Supports multiple users (up to 24 persons per account) and can recognize different users.

Important Technical Specifications

Product Size: 290x290x20mm
Weight Unit: Kilograms (kg)
Weight Limit: 6kg-180kg
Power Supply: 3xAAA batteries
Account Number: No limitation (each account can add 24 persons)
Operating Temperature: 10-40°C
Operation Humidity: 20%-90%
Support Devices:
- iOS 8.0 or higher
- Android 6.0 or higher

Usage Features

App Installation: Download the "Onfit" app from Apple Store or Google Play by searching "Onfit" or scanning the provided QR code.
Battery Installation: Insert 3xAAA batteries into the battery holder on the back of the scale.
Placement: Place the scale on a hard, dry, and flat surface for accurate measurements.
Bluetooth Connection: Turn on Bluetooth on your smartphone or tablet. The app will indicate when the phone is connected to the scale (e.g., "Yologram").
User Registration: Register an ID in the app using email or a social media account.
Personal Data Entry: Add personal data such as gender, age, height, and corporeal level. Incorrect data may lead to inaccurate measurements.
Activation: Tap your foot on the scale to activate the display. Wait until it shows "0.0"kg.
Measurement: Step onto the scale with BARE feet to initiate a full body composition analysis. If stepping with socks, only weight and BMI will be measured.
Data Synchronization: Stand still on the scale until the display shows "0000", indicating that all data has been received by the phone.
Data Analysis: The app provides a detailed analyzing report on various body metrics and allows users to view long-term track charts.
User Switching: Users can add and switch between different profiles within the app. The scale can recognize the user and prompt for correct user selection.
Baby Mode Usage: In Baby Mode, first weigh yourself, then hold the baby to get the baby's weight. The app automatically calculates the baby's weight.
Height Record for Minors: For users under 16, height can be manually added in the app.

Maintenance Features

Cleaning: Do not immerse the scale in water or use chemical cleaning agents. Clean the scale with a slightly damp cloth.
Battery Replacement: When the display shows "LO", it indicates low battery. Replace with 3x1.5V AAA batteries.
Troubleshooting - Bluetooth Connection:
- Ensure Bluetooth is on for both the scale and smartphone.
- For Android, allow location permission for the app.
- Open the app while using the scale.
- Check for the connection icon on the scale's display.
- Verify that your smartphone's OS is iOS 8.0 or higher or Android 6.0 or higher.
- If issues persist, try navigating through the app settings to "Device" or "Setting" to find and connect to "My_scale".
Troubleshooting - No Body Fat Data:
- Ensure bare feet are used for measurement.
- Make sure feet and scale are dry.
- Stand still on the scale for about 10 seconds until the display stops flashing.
- Ensure Bluetooth is on and not paired with a different scale.
- If feet are too dry, try adding some water to the bottom of the feet.
- If multiple devices are connected to the scale, ensure unused devices are turned off.
Troubleshooting - Inconsistent Weight:
- Check if the scale is on a hard, flat surface.
- Inspect each sensor foot on the back for obstructions.
- Remove and reinsert batteries to restart the scale.
Troubleshooting - Incorrect Fat-Muscle Ratio:
- Verify that the body parameter settings (gender, height, age) in the app are correct.
Recalibration: After moving the scale or changing batteries, step on the scale to turn it on and let it automatically drop to "0.0kg" to calibrate.
Scale Not Turning On: Remove and reinsert batteries, ensuring correct polarity.

Safety Warnings

Medical Implants: DO NOT use if you have medical implants such as pacemakers.
Physical Safety: DO NOT stand on the edge of the scale or jump on it.
Overload: DO NOT overload the scale (Max. 180kg).
Damage: DO NOT drop the scale or objects on it, as this may damage the sensors.
Cleaning: DO NOT immerse the scale in water or use chemical cleaning agents. Clean with a slightly damp cloth.
Specific Groups: Not recommended for pregnant women, infants, toddlers, and children under 10 years of age.
Medical Advice: Any measurements obtained are for reference only and should not be considered medical opinions. Consult a primary care doctor before making changes to diet, exercise, or physical activities.
Battery Handling: Connect batteries according to indicated polarities. Remove batteries if the scale will not be used for a prolonged period.

atflee T9 - Fitdays App User Profile; Adding Personal Data; Privacy Policy Overview; Data Collection and Use

Table of Contents