FBF-F2 Body Fat Scale
The F2 smart body fat scale helps families track weight and body composition trends through the Fondcircle app. Step on barefoot to measure weight and impedance with 4-electrode BIA; the app then organizes body fat, water, muscle, bone, BMR, and other wellness metrics over time. A white LED display shows weight clearly, while the 5 mm tempered glass platform, upgraded base, auto on/off, and 2 AAA batteries keep daily use simple.
Features
4-electrode BIA supports app-based body composition tracking
Sync weight and composition trends in the Fondcircle app
App-based multi-user records for household health routines
White LED display shows weight clearly at a glance
Upgraded base, 5 mm tempered glass, and anti-slip feet for steady daily use
lb/kg switching, auto on/off, low-battery and overload prompts
FDA granted 510(k) clearance
FSA & HSA Payments Accepted
30-day risk-free trial
1-Year Warranty
Pairs well with
FBF-F2 Body Fat Scale
BIATrack — Weight Plus Body Composition
Weight Is Just the Start.
Step on barefoot and the F2 measures weight plus impedance through 4-electrode BIA. With App setup, body composition can be calculated from the measurement data. Without the App, the scale works as a weight scale only.
StableBase
Step On. Read Fast. Move On.
The F2 keeps daily weighing simple: 260 × 260 mm footprint, slim 22.5 mm profile, 5 mm tempered glass, upgraded base structure, white LED display, auto on/off, and lb/kg switching from the rear button. Place it on a hard, flat floor for stable readings.
Routine Accuracy
Consistency Starts With Setup.
Place the scale on a hard, flat floor and measure barefoot at a similar time each day. Body composition mode is for adults 18–65 within 100–220 cm height; outside that range, use weight-only tracking.
FondCircle App
Get hospital-level care from home with FondCircle’s tele-health platform and smart devices for accurate, connected health monitoring.
Easy to Track
The ability to view weekly, monthly, or yearly trends gives you an overview of your blood pressure’s evolution.
Insightful trends
The ability to view weekly, monthly, or yearly trends gives you an overview of your blood pressure’s evolution.
Invite Your Family
Invite your family to track together or share your information.
Easy to share
Share your information with family or doctors under your permission.
Stay Connected
to Your Health Records.
Connect supported FondCircle devices, track trends.
Review AI-powered insights, and share reports with the people you trust.
Data Protection
We protect your health.
We also protect your privacy.
The Fondcircle app handles your health data in accordance with HIPAA standards. Your readings stay on your device by default — sharing through CareShare is always initiated by you, and only reaches the people you choose. We do not sell your health data.
Specifications
| Model | FBF-F2 |
| Measurement method | 4-electrode foot-to-foot BIA |
| Measurement range | 0.2–400 lb / 0.1–180 kg |
| Units | lb / kg |
| Resolution | 0.05 kg / 0.1 lb below 100 kg 0.1 kg / 0.1 lb from 100–180 kg |
| Startup weight | 5 kg (±1 kg) |
| Body composition threshold | ≥20 kg |
| Connectivity | Bluetooth app sync |
| Display | White LED |
| Power | 2 × AAA batteries |
| Auto power-off | 10 seconds |
| Unit switching | Rear button |
| Glass thickness | 5 mm tempered glass |
| Operating environment | 5°C–40°C / 41°F–104°F 0%–90% RH |
| Storage environment | -10°C–60°C / 14°F–140°F |
| Dimensions | 260 × 260 × 22.5 mm |
| Weight | Approx. 1 kg (without batteries) |
| Body composition use range | Adults 18–65 years Height 100–220 cm |
| Important use note | Body composition requires app connection Without the app, the scale displays weight only |
What's in the Box
- FBF-F2 smart body fat scale × 1
- 2 × AAA batteries
- User manual
FAQs
Please read our FAQs page to find out more.
Can I use F2 without the FondCircle App?
Yes, but without App setup the scale functions as a weight scale only. Body composition tracking requires App connection and supported user profile information.
Why do I need to stand barefoot?
F2 uses foot-to-foot BIA. Bare feet must contact the electrode areas so the scale can collect impedance data for App-based body composition estimates.
Who should not use body composition mode?
Body composition mode is not intended for pregnant users, infants, or people with pacemakers or other implanted electronic medical devices. Users outside the supported body composition range should use weight-only tracking.
What is the supported body composition range?
The current PDP draft uses 18-65 years old and 100-220 cm height for body composition. Outside that range, use the scale for weight tracking only.
Why are my body composition numbers different between measurements?
Hydration, recent exercise, bathing, food intake, foot contact, floor surface, and measurement timing can affect BIA estimates. Use the scale barefoot, on a hard flat floor, at a similar time each day.
What should I check if the scale does not turn on?
Install 2 AAA alkaline batteries in the correct direction. Place the scale on a hard, flat surface and make sure the startup weight threshold is met.