Introduction
The Jata HBAS1155 Digital Smart Bathroom Scale is designed to provide comprehensive body composition analysis. This device measures not only your weight but also calculates muscle mass, body water, body fat, bone density, and Body Mass Index (BMI). It also provides recommended daily calorie intake. With its integrated app connectivity, you can track your fitness progress over time for up to 15 different users.
Safety Information
- Do not use this device if you have a pacemaker or other internal medical device.
- Do not use this device if you are pregnant.
- Place the scale on a hard, flat surface for accurate measurements. Avoid carpets or uneven floors.
- The scale surface is made of glass. Step on and off carefully to prevent slipping.
- Keep the scale dry. Do not immerse it in water or use abrasive cleaners.
- This scale is intended for household use only.
Package Contents
Please check the package for the following items:
- 1 x Jata HBAS1155 Digital Smart Bathroom Scale
- User Manual (this document)
Product Overview
The Jata HBAS1155 scale features a sleek design with a 5mm safety glass surface and four high-precision sensors for accurate measurements. The digital display shows your weight and other relevant data.


Setup
1. Battery Installation
The scale typically uses AAA batteries (not always included). Open the battery compartment on the underside of the scale and insert the batteries according to the polarity indicators (+/-).
2. Scale Placement
Place the scale on a hard, flat, and stable surface. Avoid soft surfaces like carpets, which can affect accuracy.

3. App Download and Connection
- Download the 'Okok' app from your mobile device's app store (compatible with devices with Wireless 4.0 or higher, Android 4.3 or higher, or iOS 8.0 or higher).
- Enable Bluetooth on your smartphone.
- Open the 'Okok' app and create your user profile.
- Step onto the scale to activate it. The app should automatically detect and connect to the scale. Follow any on-screen prompts in the app to complete the pairing process.
Operating Instructions
1. Taking a Measurement
- Ensure the scale is on a hard, flat surface.
- Step onto the scale barefoot. Ensure your feet are in contact with all four metal electrodes for accurate body composition analysis.
- Stand still until your weight is displayed and stabilized. The scale will then proceed to measure other body composition metrics.
- Your measurements will be automatically sent to the 'Okok' app if connected.
2. Using the 'Okok' App
- User Profiles: The scale supports up to 15 distinct user profiles. In the app, you can select or create a profile for each family member or friend. Data will be saved to the selected profile.
- Data Tracking: View your historical data for weight, BMI, body fat, muscle mass, body water, bone density, and recommended daily calories. Track trends and monitor your fitness journey.
- Goal Setting: Set personal fitness goals within the app to help motivate your progress.
Maintenance
1. Cleaning
Wipe the scale surface with a damp cloth and mild detergent. Do not use abrasive cleaners or immerse the scale in water.
2. Storage
Store the scale in a cool, dry place. Avoid extreme temperatures or direct sunlight.
3. Battery Replacement
When the display shows a 'Lo' indicator, it's time to replace the batteries. Open the battery compartment and replace all batteries with new ones of the same type.
Troubleshooting
- No display / 'Lo' indicator: Replace batteries.
- Inaccurate readings: Ensure the scale is on a hard, flat surface. Recalibrate by stepping on and off the scale quickly, then wait for '0.0' before taking a measurement. Ensure feet are clean and dry and in full contact with electrodes for body composition.
- 'Err' indicator: This usually indicates an overload. The maximum weight capacity is 180 kg. Step off the scale immediately.
- App not connecting: Ensure Bluetooth is enabled on your device and the 'Okok' app is open. Step on the scale to activate it. Restart the app or your phone if necessary.
- Body composition data not showing: Ensure you are stepping on the scale barefoot and your feet are making good contact with all four metal electrodes.
Specifications
| Feature | Specification |
|---|---|
| Brand | Jata |
| Model | HBAS1155 |
| Color | Black |
| Recommended Use | Adults |
| Special Features | Calorie Consumption, Body Mass Index, Body Fat Mass, Muscle Mass, Body Weight, Automatic Shut-off |
| Display Type | Digital |
| Maximum Weight Capacity | 180 Kilograms |
| Display Accuracy | 100 Grams |
| Measurement Type | Kilograms |
| Item Weight | 1.19 Kilograms |
| EU Spare Parts Availability | 10 Years |
| Country of Origin | China |
Warranty and Support
Jata products are manufactured to high-quality standards. For warranty information and customer support, please refer to the documentation included with your purchase or visit the official Jata website. Spare parts are generally available for 10 years within the EU.