Bodystat QuadScan 4000 vs InBody 970S
Bodystat QuadScan 4000 and InBody 970S: 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.
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.
Specifications side by side
Highlighted rows differ. Unknown values stay unknown.
| Specifications | Bodystat QuadScan 4000 | InBody 970S |
|---|---|---|
| Method | Multi-frequency BIA | Not verified |
| Measurement frequencies | 5, 50, 100, 200 kHz | 5, 50, 250, 500 kHz; 1, 3 MHz |
| Measurement position | Supine | Standing |
| Electrodes | 4 adhesive electrodes | Not verified |
| Documented outputs | Estimated fat, fat-free mass, total, intracellular and extracellular water; 50 kHz phase angle | Not verified |
| Recording time | Not verified | ≈ 30 s |
| Body weight range | Not verified | 2–300 kg |
| Height range | Not verified | 95–220 cm |
| Device weight | Not verified | 41.1 kg |
| Contact electrodes | Not verified | 8 |
| Method and electrodes | Not verified | DSM-BIA / SMF-BIA; 8 tactile electrodes |
| Measured segments | Not verified | Right and left arm, trunk, right and left leg |
| Dimensions (width × depth × height) | Not verified | 614.1 × 963.8 × 1,239.3 mmEvidence |
| Age in the cited catalogue | Not verified | From 3 yearsEvidence |
| Impedance measurements | Not verified | 30Evidence |
| Device internal database capacity | Not verified | 100,000 recordsModel sources |
| Display | Not verified | 10.1″ colour TFT LCD; 1,280 × 800Model sources |
| Display diagonal | Not verified | 10.1″Model sources |
| Documented interfaces | Not verified | Wi-Fi, BluetoothModel sources |
| Segmental phase angle | Not verified | 15 values: 5, 50 and 250 kHz × 5 segmentsModel sources |
| Identification at testing | Not verified | Fingerprint / InBodyBAND recognitionModel 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.

