Body Fat Scales with 4-Electrode BIA (180kg) + Fitdays App — Smart Bathroom Scales for BMI, Visceral Fat & More
Product description
If you’re trying to make sense of body composition changes (not just the number on the scales), the 4-electrode BIA body fat scales are built around that idea. This smart bathroom scale uses 4-electrode Bioelectrical Impedance Analysis (BIA) and an app to track 20 metrics, so your progress is easier to see over time.
It’s not a medical device and BIA readings can shift with day-to-day factors, but as a home tracker for fitness or nutrition programmes it looks well thought through. The big question is whether you’ll actually use the app and profiles, because the value here is in the tracking, not just the weighing.
Key features
These body composition scales focus on measurement variety and tracking. On the hardware side, the scale is designed for stability and usability: textured, non-slip silicone feet for better footing, and a tempered glass surface that’s described as scratch-resistant. There’s also a larger display with a bright backlight, which helps when you’re checking results in the bathroom.
On the measurement side, the scale can report weight and a broader set of body metrics via BIA. The listing specifically mentions 20 body composition metrics, including BMI, body fat percentage, visceral fat, muscle mass, hydration level and more. It also states a measurement accuracy of ±0.05 kg / 0.1 lb, and a measurement range from 5 to 180 kg.
Where it becomes more “smart” is integration and organisation. The scale synchronises your 20 metrics to the Fitdays app via Bluetooth, and the app is positioned as providing personalised recommendations based on your data. It can also sync with popular health platforms such as Fitbit, Google Fit and Apple Health for centralised management (useful if you already track health elsewhere).
Tech specs
- Type: 4-electrode BIA body fat scale with app tracking
- Range: 5 to 180 kg
- Measurement accuracy: ±0.05 kg / 0.1 lb
- Metrics tracked: 20 body composition metrics (including weight, BMI, body fat percentage, visceral fat, muscle mass and more)
- Connectivity: Bluetooth synchronisation with Fitdays app
- User recognition: automatic matching for stored profiles (weight differences within ±2 kg)
- Special modes mentioned: infants, toddlers, children, adolescents, standard adults, athletes, and pregnant women
- Large display: shows weight, body fat percentage, and muscle mass, supports kg/lb/st
- Glass and feet: tempered glass, scratch-resistant (as stated), non-slip silicone feet
What you’ll notice day to day
The practical day-to-day win here is convenience: the scale is designed to assign measurements to the right person automatically when multiple users are in the household. The listing describes automatic user recognition by matching you to a stored personal profile based on weight differences within ±2 kg, and it displays the corresponding height and age for that user.
There’s also a hint of “smart family” positioning thanks to 7 specialised modes. If you want one scale for more than one person and age group, it’s built for that setup.
Still, one limitation to bear in mind: the listing recommends using only the pure weight measurement mode for users under 16 years of age and pregnant women. So if your priority is body composition metrics for everyone in the house, you may need to plan how you use the modes.
And like most BIA scales, readings can fluctuate throughout the day. The manufacturer recommends taking measurements at the same time each day (ideally in the morning on an empty stomach) and keeping your feet dry. That’s a small routine commitment, but it’s also what makes the trend data more meaningful.
Who it suits (and who should skip it)
It’s a good fit if you want more than weight and you’re the type to track trends during fitness or nutritional programmes. The combination of 20 metrics plus app sync makes sense if you’re motivated by seeing changes over time, including things like visceral fat and hydration level.
It suits households too, if multiple people will use the same scale and you like the idea of stored profiles with automatic recognition.
It may not suit you if you only care about a quick, occasional weight reading and don’t want to manage profiles or use the app. It might also be a frustrating choice if you’re expecting a single, highly consistent BIA result regardless of when you weigh—because the listing itself stresses timing and foot dryness for best results.
Worth considering if you like the idea of syncing with other platforms (Fitbit, Google Fit, Apple Health), but you’ll need to be comfortable setting up that ecosystem.
¿Merece la pena?
Worth it depends on your goal. For pure weight checks, you could choose something simpler, this one is clearly geared towards body composition tracking. Where it earns its keep is the app-linked trend view of 20 metrics, plus the 4-electrode BIA approach.
That said, BIA is still an estimate. The listing doesn’t position it as clinical-grade, and readings can vary with hydration, timing and daily routine. If you can follow the recommended approach (same time of day, empty stomach in the morning, dry feet) and actually open the app to review trends, then yes—this is more likely to feel “worth it”.
Compatibility
The scale synchronises with the Fitdays app via Bluetooth. The app can also sync with Fitbit, Google Fit and Apple Health for centralised management, and you can share progress on social platforms mentioned in the listing.
FAQs
How many body metrics does it track?
The scale measures 20 body composition metrics via BIA, including weight, BMI, body fat percentage, visceral fat, muscle mass and more.
Does it automatically recognise different users?
Yes. It’s designed to match you to stored personal profiles automatically when stepping on, using weight differences within ±2 kg, and it displays the corresponding height and age.
Can it be used by children or pregnant users?
The listing recommends using only the pure weight measurement mode for users under 16 years of age and pregnant women. For others, the scale includes specialised modes (as stated).
Does it work without the app?
The listing mentions offline storage: data can be stored on up to 8 devices, with each device managing up to 24 online users. For ongoing tracking, though, the app is where real-time synchronisation and trend tracking happen.
What’s the best time to weigh for more consistent results?
The guidance is to take readings at the same time each day—ideally in the morning on an empty stomach—and keep your feet dry.