Bodystat QuadScan 4000 vs OMRON BF511
Bodystat QuadScan 4000 and OMRON BF511: compare documented specifications, features and limitations. Check the reports and explanation offered by the provider. More features alone do not establish better accuracy.
Bodystat QuadScan 4000: when to consider it
QuadScan 4000 measures impedance at four frequencies using adhesive electrodes. Alongside estimated fat and fat-free mass, it reports body-water compartments, resistance, reactance and phase angle. Testing is supine; the operator enters height and weight.
OMRON BF511: when to consider it
BF511 is a scale with eight sensors contacting hands and feet. It uses 50 kHz BIA to estimate body-fat percentage, skeletal-muscle percentage and visceral-fat level alongside weight and BMI. It provides a whole-body overview; separate limb results are not documented.
Specifications side by side
Highlighted rows differ. Unknown values stay unknown.
| Specifications | Bodystat QuadScan 4000 | OMRON BF511 |
|---|---|---|
| Method | Multi-frequency BIA | Bioelectrical impedance (BIA) |
| Measurement frequencies | 5, 50, 100, 200 kHz | 50 kHz |
| Measurement position | Supine | Not verified |
| Electrodes | 4 adhesive electrodes | 8 hand-and-foot sensors |
| Documented outputs | Estimated fat, fat-free mass, total, intracellular and extracellular water; 50 kHz phase angle | Weight, BMI, fat and skeletal-muscle percentage, visceral-fat level |
| Maximum weight | Not verified | 150 kg |
Fat-free mass is not pure muscle mass. A single result is not a diagnosis. Different devices and similarly named metrics may use definitions that are not interchangeable.

