Bodystat QuadScan 4000 vs InBody 770S
Bodystat QuadScan 4000 and InBody 770S: 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 770S: when to consider it
A newer generation for nutrition and clinical follow-up with a detailed water report. Useful for discussing fat and muscle changes in the context of water distribution and phase angle, including individual body regions.
Specifications side by side
Highlighted rows differ. Unknown values stay unknown.
| Specifications | Bodystat QuadScan 4000 | InBody 770S |
|---|---|---|
| Method | Multi-frequency BIA | Not verified |
| Measurement frequencies | 5, 50, 100, 200 kHz | 5, 50, 250, 500 kHz; 1 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 | 2–270 kg |
| Height range | Not verified | 95–220 cm |
| Device weight | Not verified | 35.7 kg |
| Contact electrodes | Not verified | 8 |
| Operating temperature | Not verified | 10–40 °C |
| Dimensions (width × depth × height) | Not verified | 526 × 854 × 1,175 mmEvidence 1Evidence 2 |
| Age in the cited catalogue | Not verified | From 3 yearsEvidence |
| Impedance measurements | Not verified | 25Evidence 1Evidence 2 |
| Device internal database capacity | Not verified | 100,000 recordsEvidence |
| Display | Not verified | 10.2″ colour touchscreen TFT LCD, 800 × 480Evidence |
| Documented interfaces | Not verified | 4× RS-232C, 2× USB host, USB device, Ethernet, Bluetooth and 2.4/5 GHz Wi-FiEvidence |
| Display diagonal | Not verified | 10.2″Model sources |
| Result sheets | Not verified | Body composition, child and dedicated water reportsModel sources |
| Specialist displays | Not verified | The water report includes BIVA and Z0; availability depends on settingsModel sources |
| Additional instruments | Not verified | Compatible stadiometer, blood pressure monitor and InGripModel sources |
| Result management | Not verified | ID, QR, USB backup and LookinBody software according to configurationModel 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 — český katalog 770S / Czech 770S catalogue (2025)
- InBody — výrobce 770S / manufacturer 770S
- InBody 770S — česká produktová stránka / Czech product page
- InBody — příprava / test preparation
- InBody USA — InBody 770S
- InBody Europe — InBody 770S User Manual
- InBody — Annual Report 2025 / výroční zpráva 2025

