Bodystat QuadScan 4000 vs InBody BWA 2.0S
Bodystat QuadScan 4000 and InBody BWA 2.0S: 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 BWA 2.0S: when to consider it
The newer BWA 2.0S combines detailed water results with composition and offers a shorter test than the original BWA. Testing can also take place while lying or seated. It is mainly intended for care where a professional follows water distribution and muscle quantity over time.
Specifications side by side
Highlighted rows differ. Unknown values stay unknown.
| Specifications | Bodystat QuadScan 4000 | InBody BWA 2.0S |
|---|---|---|
| Method | Multi-frequency BIA | Not verified |
| Measurement frequencies | 5, 50, 100, 200 kHz | 5, 50, 250, 500 kHz; 1, 3 MHz |
| Measurement position | Supine | Supine, seated or 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 (Medical); ≈ 60 s (Research) |
| Body weight range | Not verified | 2–250 kg |
| Height range | Not verified | 95–220 cm |
| Device weight | Not verified | 2.8 kg |
| Contact electrodes | Not verified | 16 |
| Operating temperature | Not verified | 10–40 °C |
| Dimensions (width × depth × height) | Not verified | 322 × 282 × 81.5 mmEvidence |
| Age in the cited catalogue | Not verified | From 3 yearsEvidence |
| Impedance measurements | Not verified | 30Evidence |
| Device internal database capacity | Not verified | 100,000 recordsEvidence |
| Display | Not verified | Colour touchscreen TFT LCD, 1280 × 800 pixelsEvidence |
| Documented interfaces | Not verified | RS-232C, USB Host, USB Slave, Ethernet, Bluetooth and Wi-FiEvidence |
| Display diagonal | Not verified | 10.1″Model sources |
| Contacts and modes | Not verified | Clamp electrodes; Medical (proximal) and Research (distal) placementModel sources |
| Weight for the test | Not verified | Entered separately; no built-in scaleModel sources |
| Z0 and Z∞ | Not verified | Modelled limiting impedances, rather than additional measured frequenciesModel 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.