Bodystat QuadScan 4000 vs InBody 380
Bodystat QuadScan 4000 and InBody 380: 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 380: when to consider it
For following fat and muscle changes at a gym, nutrition practice or mobile testing event. Adds a body-water ratio and whole-body phase angle to the usual overview for discussion during a consultation.
Specifications side by side
Highlighted rows differ. Unknown values stay unknown.
| Specifications | Bodystat QuadScan 4000 | InBody 380 |
|---|---|---|
| Method | Multi-frequency BIA | Not verified |
| Measurement frequencies | 5, 50, 100, 200 kHz | 5, 50, 500 kHz |
| 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 | 5–300 kg |
| Height range | Not verified | 95–220 cm |
| Device weight | Not verified | 16 kg |
| Contact electrodes | Not verified | 8 |
| Operating temperature | Not verified | 10–40 °C |
| Dimensions (width × depth × height) | Not verified | 415.5 × 871.5 × 1,069.9 mmEvidence |
| Age in the cited catalogue | Not verified | From 3 yearsEvidence |
| Impedance measurements | Not verified | 15Evidence |
| Device internal database capacity | Not verified | 100,000 recordsEvidence |
| Display | Not verified | 7″ touchscreen TFT LCD, 480 × 800Evidence |
| Display diagonal | Not verified | 7″Model sources |
| Documented interfaces | Not verified | 2× RS-232C, 2× USB host, Ethernet, Bluetooth and Wi-FiModel sources |
| Construction | Not verified | Folding column and three-way hand electrodesModel sources |
| Result sheets | Not verified | Body composition, child and thermal reportsModel sources |
| Client identification | Not verified | ID entry and QR recognition option; depends on equipmentModel sources |
| Operating modes | Not verified | Professional and self-service modesModel 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.
Sources and verification
- Bodystat — QuadScan 4000 Instructions for Use
- InBody — katalog 380 / 380 catalogue (2024)
- InBody — globální 380 / global 380
- InBody 380 — česká produktová stránka / Czech product page
- InBody — česká příručka 380 / Czech 380 manual
- InBody — příprava / test preparation
- InBody Germany — InBody präsentiert InBody 380 & InBody 580
- InBody — Annual Report 2025 / výroční zpráva 2025

