ZengJie Smart Body Fat Scale: Heart rate measurement
This smart scale is for anyone who wants to track health beyond weight, like a busy parent managing family wellness or someone focused on fitness goals. It goes beyond basic scales by offering a tool for understanding body composition, not just numbers.
The scale measures heart rate and body fat in about 10 seconds with bare feet, giving you detailed insights quickly. It automatically recognizes up to 24 users, so your family can step on and see personalized data without manual switching. Sync with the Fitdays app to view long-term charts and track progress over time. Features like baby mode for infants and support for multiple weight units make it practical for diverse needs.
Use it to monitor health trends, set fitness targets, or keep an eye on family members' wellness, all with clear, actionable data at your fingertips.
Features
- Heart Index measurement
- Height record function
- Baby mode for weighing infants
- Supports up to 24 users per account
- Bluetooth 4.0 support
- Auto-calibration function
- Data sync with Fitdays App
- Long-term tracking charts
- Maximum capacity: 400 lbs
- Product size: 11.8x10.8x1 inches
- VA screen display: 2.44x4.29 inches
- Powered by 4xAAA batteries
- Weight unit: lb/st (switchable in App)
- Weight limit: 13.2 lbs – 400 lbs
- Support for IOS 8.0 or higher
- Support for Android 6.0 or higher
- Automatic user recognition
- Low battery indicator (Lo)
- Overload indicator (Err)
- Measurement error indicator (C)
- Measurement time: around 10 seconds
- Requires bare feet for full body composition measurement
- Account number: No limitation (each account can add 8 persons)
- FCC Class B digital device compliance
- Troubleshooting guide included
- Battery removal recommended for long-term storage
- Unit synchronization via App settings
- Not recommended for pregnant women
- Not recommended for infants, toddlers, and children under 10 years old
- Users under 6 years old: only weight function
- Users under 10 years old: only weight & BMI function
- Heart rate measurement
General specs
- Brand: ZengJie
- Seller: Joom
- ID: 6927f2bbaa551f01266e28a8
- Material: Tempered Glass
- Battery Type: Lithium
- Connectivity: Bluetooth
- Display Type: LCD
- Power Source: Rechargeable
- BIA Technology: BIA
- Metrics Measured: BMI, Body Fat Percentage, Bone Mass, Heart Rate, Muscle Mass, Water Percentage, Weight
- OS Compatibility: Android, iOS
- App Compatibility: Apple Health, Garmin, Mi Home, Samsung Health
- First listed by seller: 12/6/25
If you are interested in more details, you can find full information on the seller's page.
Shipping options
United States
Comparison with similar products
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
Smart Body Fat Scale Black Heart rate measurement
|
Rabater CF588BLE Black
|
YINOLIFE FI2428LBF Black
|
FITINDEX ES-26M White
|
RENPHO R-A018 Black 13 detailed body metrics analysis
|
Wyze WSCLUB_BL Black
|
|
| Brand | ZengJie | Rabater | YINOLIFE | FITINDEX | RENPHO | Wyze |
| Model | CF588BLE | FI2428LBF | ES-26M | R-A018 | WSCLUB_BL | |
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| Price | $25.46 | $39.99 | $29.99 | $24.99 | $49.99 | $129.98 |
| Seller | Joom | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | December 10, 2025 | December 9, 2025 | December 9, 2025 | December 9, 2025 | December 9, 2025 | December 9, 2025 |
| Material | Tempered Glass | Tempered Glass | Tempered Glass | Tempered Glass | Aluminum Alloy, Tempered Glass | |
| Connectivity | Bluetooth | Bluetooth | Bluetooth | Bluetooth | Bluetooth | Bluetooth |
| Display Type | LCD | LCD | LCD | LED | LCD | LCD |
| Power Source | Rechargeable | Rechargeable | Rechargeable | Battery | Rechargeable | Rechargeable |
| BIA Technology | BIA | BIA | BIA | BIA | BIA | BIA |
| Metrics Measured | BMI, Body Fat Percentage, Bone Mass, Heart Rate, Muscle Mass, Water Percentage, Weight | BMI, Body Fat Percentage, Heart Rate, Muscle Mass, Water Percentage, Weight | BMI, Body Fat Percentage, Muscle Mass, Bone Mass, Weight | BMI, Body Fat Percentage, Muscle Mass, Bone Mass | BMI, Body Fat Percentage, Bone Mass, Muscle Mass, Water Percentage, Weight | BMI, Body Fat Percentage, Muscle Mass, Weight |
| OS Compatibility | Android, iOS | Android, iOS | Android, iOS | Android, iOS | Android, iOS | Android, iOS |
| App Compatibility | Apple Health, Garmin, Mi Home, Samsung Health | Apple Health, Samsung Health | Apple Health | Apple Health, Samsung Health | Apple Health, Samsung Health | Apple Health |
| Dimensions | 27.4, 27.4, 1.5 | 11.8, 11.8, 1.1 | 10.2, 10.2, 0.96 | 11, 11, 0.9 | 34.01, 39.19, 5.41 | |
| Item Weight | 1.2 | 1.8 | 1.1 | 1.29 | <num1>, <num2> | |
| Measurement Increments | 45.4 | 0.045 | 0.05 | 0.05 | ||
