OMRON BF511 vs Tanita RD-545HR
OMRON BF511 and Tanita RD-545HR: 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.
Tanita RD-545HR: when to consider it
RD-545HR uses dual-frequency segmental BIA with a handle and app connection. It provides fat, muscle and regional results as well as heart rate. HR distinguishes it from the original RD-545; a scale’s bone-mass estimate is distinct from bone densitometry.
Specifications side by side
The filter keeps rows with undocumented values. More features or a different value alone do not establish better measurement accuracy.
Practical specifications
| Specification | OMRON BF511 | Tanita RD-545HR |
|---|---|---|
| Maximum weightDifferent documented values | 150 kgModel sources 1Model sources 2Model sources 3 | 200 kgModel sources |
| Documented outputsDifferent documented values | Weight, BMI, fat and skeletal-muscle percentage, visceral-fat levelModel sources 1Model sources 2Model sources 3 | Fat, muscle mass, water, regional results and heart rateModel sources |
Technical specifications
| Specification | OMRON BF511 | Tanita RD-545HR |
|---|---|---|
| MethodDifferent documented values | Bioelectrical impedance (BIA)Model sources 1Model sources 2Model sources 3 | Dual-frequency BIAModel sources |
| Measurement frequenciesA documented value is missing | 50 kHzModel sources 1Model sources 2Model sources 3 | Not documented |
| ElectrodesA documented value is missing | 8 hand-and-foot sensorsModel sources 1Model sources 2Model sources 3 | Not documented |
| Measured regionsA documented value is missing | Not documented | Both arms, both legs and trunkModel sources |
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.