1. Introduction
The Lepulse Lescale F4pro Smart Body Composition Scale is designed to provide comprehensive insights into your body's health. Utilizing advanced Bioelectrical Impedance Analysis (BIA) technology, this scale measures not just your weight, but also 22 key body metrics, including BMI, body fat, muscle mass, heart rate, and more. Its large 4.68-inch VA LCD display shows 8 essential biometrics directly on the scale, along with trend charts, making health monitoring convenient and accessible. The scale connects seamlessly with the 'Fitdays' app via Bluetooth, allowing you to track your progress over time and integrate data with other popular fitness applications.

Figure 1: Lepulse Lescale F4pro Smart Body Composition Scale
2. What's in the Box
- Lepulse Lescale F4pro Smart Body Composition Scale
- User Manual
- USB Charging Cable
3. Setup and App Installation
3.1 Charging the Scale
Before first use, ensure the scale is fully charged. Connect the provided USB cable to the charging port on the side of the scale and to a standard USB power adapter (not included). The display will indicate charging status.
3.2 App Download and Registration
- Scan the QR code provided in the Quick Start Guide or search for 'Fitdays' in your smartphone's app store (Apple App Store or Google Play Store).
- Download and install the 'Fitdays' app.
- Open the app and follow the on-screen instructions to create your user profile. This typically involves entering your email, password, and basic personal information (age, height, gender).
3.3 Pairing the Scale with the App
Ensure Bluetooth is enabled on your smartphone. Open the 'Fitdays' app. Step onto the scale with bare feet. The app will automatically detect and connect to the scale. Your measurements will then synchronize with the app. If the app does not connect automatically, navigate to 'My Device' within the app and select 'Add Device' to search for and pair your scale.
Video 1: Demonstrates the 4.68-inch display showing 8 key metrics directly on the scale. This video is provided by Welluefit-US.
4. Operating Instructions
4.1 Taking a Measurement
- Place the scale on a hard, flat surface. Avoid carpets or uneven flooring for accurate readings.
- Step onto the scale with bare, dry feet. Ensure your feet make full contact with the ITO sensor surface for comprehensive body composition analysis.
- Stand still on the scale until your weight and other metrics stabilize on the display.
- The scale will automatically transmit data to the 'Fitdays' app if your phone is nearby and the app is open.
4.2 Display and Offline Measurement
The 4.68-inch VA LCD display shows 8 essential biometrics: Body Weight, Body Fat, Muscle Mass, Water Weight, Heart Rate, BMR, BMI, and Body Type. It also displays trend charts for key metrics. The scale supports offline measurements, storing up to 24 readings. These readings will sync with the app once you are back online and the app is opened.

Figure 2: The scale's large display provides instant access to 8 key body metrics and trend data.
4.3 Unit Switching
You can easily switch between pounds (lb), kilograms (kg), and stones (st) directly on the scale or through the 'Fitdays' app settings.

Figure 3: The scale features a unit switch for convenience.
5. Understanding Your Metrics
The Lepulse Lescale F4pro provides 22 comprehensive body metrics through Bioelectrical Impedance Analysis (BIA). These metrics are crucial for a holistic understanding of your health and fitness journey.
5.1 Key Metrics Displayed on Scale (8)
- Body Weight: Your total weight.
- Body Fat: Percentage of fat in your body.
- Muscle Mass: Total weight of muscle in your body.
- Water Weight: Percentage of water in your body.
- Heart Rate: Your heart beats per minute.
- BMR (Basal Metabolic Rate): Calories burned at rest.
- BMI (Body Mass Index): A measure of body fat based on height and weight.
- Body Type: Classification based on body composition.
5.2 Additional Metrics in Fitdays App (22 Total)
Beyond the 8 metrics on the display, the Fitdays app provides a detailed breakdown of 22 biometrics, including:
- Weight
- BMI
- Body Fat
- Muscle Rate
- Fat-free Body Weight
- Subcutaneous Fat
- Visceral Fat
- Body Water
- Skeletal Muscle
- Muscle Mass
- Bone Mass
- Protein
- BMR
- Heart Index
- Body Age
- Fat Mass
- Protein Mass
- Ideal Body Weight
- Obesity Level
- Body Type

Figure 4: The scale and app provide a comprehensive analysis of 22 body metrics.
5.3 Tracking Progress with Fitdays App
The 'Fitdays' app allows you to view all your metrics and trend charts over days, weeks, months, or even years. This feature helps you track your health journey effectively. The app also supports up to 24 user profiles, making it suitable for the entire family to monitor their health independently.

Figure 5: Track your progress and trends conveniently through the Fitdays app.
Video 2: Overview of the smart scale's features, including BMI, body fat, and muscle mass measurements. This video is provided by Welluefit-US.
6. Maintenance
- Cleaning: Wipe the scale surface with a damp cloth and mild detergent. Avoid abrasive cleaners or harsh chemicals.
- Storage: Store the scale in a cool, dry place away from direct sunlight and extreme temperatures.
- Handling: The scale features a 6mm tempered glass platform. Handle with care to prevent damage.
7. Troubleshooting
- Inaccurate Readings: Ensure the scale is on a hard, flat surface. Avoid carpets. Make sure your feet are bare and dry, making full contact with the ITO sensors. Recalibrate the scale by stepping on it briefly, then stepping off, and then stepping on again.
- App Connectivity Issues: Ensure Bluetooth is enabled on your phone and the 'Fitdays' app is open. Check if the scale is charged. If issues persist, try restarting your phone and the scale.
- No Display: Check if the scale is charged. If the battery is low, recharge it using the provided USB cable.
8. Specifications
| Feature | Detail |
|---|---|
| Brand | Lepulse |
| Model Number | lescale F4pro |
| Color | Black-Rechargeable |
| Display Type | 4.68" VA LCD |
| Weight Limit | 396 Pounds (180 kg) |
| Readout Accuracy | 0.1 Pounds (0.05 kg) |
| Sensors | 4 high-precision gravity sensors, full-surface ITO sensor |
| Body Metrics Measured | 22 (Weight, BMI, Body Fat, Muscle Mass, Water Weight, Heart Rate, BMR, Body Type, Visceral Fat, Bone Mass, Protein, Fat-free Body Weight, Subcutaneous Fat, Skeletal Muscle, Heart Index, Body Age, Muscle Rate, Fat Mass, Protein Mass, Ideal Body Weight, Obesity Level) |
| App Compatibility | Fitdays (iOS & Android), Apple Health, Fitbit, Google Fit, Samsung Health |
| User Profiles | Up to 24 |
| Power Source | Rechargeable Lithium Polymer battery (included) |
| Product Dimensions | 11 x 11 x 1.06 inches |
| Item Weight | 4 pounds |
9. Warranty and Support
For warranty information and customer support, please refer to the official Lepulse website or contact their customer service directly. Details are typically provided in the product packaging or on the manufacturer's website.



