InBody 970S vs Tanita RD-545HR
InBody 970S 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.
InBody 970S: when to consider it
For a comprehensive consultation when you want to follow water distribution and phase angles alongside fat and muscle. This newer 970 generation offers detailed outputs for clinical, nutrition, sports and research settings.
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
Highlighted rows differ. Unknown values stay unknown.
| Specifications | InBody 970S | Tanita RD-545HR |
|---|---|---|
| Recording time | ≈ 30 s | Not verified |
| Body weight range | 2–300 kg | Not verified |
| Height range | 95–220 cm | Not verified |
| Device weight | 41.1 kg | Not verified |
| Measurement frequencies | 5, 50, 250, 500 kHz; 1, 3 MHz | Not verified |
| Contact electrodes | 8 | Not verified |
| Measurement position | Standing | Not verified |
| Method and electrodes | DSM-BIA / SMF-BIA; 8 tactile electrodes | Not verified |
| Measured segments | Right and left arm, trunk, right and left leg | Not verified |
| Method | Not verified | Dual-frequency BIA |
| Maximum weight | Not verified | 200 kg |
| Measured regions | Not verified | Both arms, both legs and trunk |
| Documented outputs | Not verified | Fat, muscle mass, water, regional results and heart rate |
| Dimensions (width × depth × height) | 614.1 × 963.8 × 1,239.3 mmEvidence | Not verified |
| Age in the cited catalogue | From 3 yearsEvidence | Not verified |
| Impedance measurements | 30Evidence | Not verified |
| Device internal database capacity | 100,000 recordsModel sources | Not verified |
| Display | 10.1″ colour TFT LCD; 1,280 × 800Model sources | Not verified |
| Display diagonal | 10.1″Model sources | Not verified |
| Documented interfaces | Wi-Fi, BluetoothModel sources | Not verified |
| Segmental phase angle | 15 values: 5, 50 and 250 kHz × 5 segmentsModel sources | Not verified |
| Identification at testing | Fingerprint / InBodyBAND recognitionModel sources | Not verified |
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.

