OMRON BF511 vs seca mBCA Alpha
OMRON BF511 and seca mBCA Alpha: compare documented specifications, features and limitations. Check the reports and explanation offered by the provider. More features alone do not establish better accuracy.
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.
seca mBCA Alpha: when to consider it
mBCA Alpha is an eight-point BIA analyser using nine frequencies. Documentation lists a 24-second recording, 360 kg capacity and fat, skeletal-muscle mass and phase-angle outputs. The Alpha configuration contains the mBCA 554 platform and mBCA 545 handle.
Specifications side by side
Highlighted rows differ. Unknown values stay unknown.
| Specifications | OMRON BF511 | seca mBCA Alpha |
|---|---|---|
| Method | Bioelectrical impedance (BIA) | Multi-frequency BIA |
| Measurement frequencies | 50 kHz | 1, 2, 5, 10, 20, 50, 100, 200, 500 kHz |
| Electrodes | 8 hand-and-foot sensors | Not verified |
| Maximum weight | 150 kg | 360 kg |
| Documented outputs | Weight, BMI, fat and skeletal-muscle percentage, visceral-fat level | Fat, skeletal-muscle mass and phase angle |
| Recording time | Not verified | 24 s; excluding preparation and consultation |
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.

