InBody 120 vs InBody 770S
InBody 120 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.
InBody 120: when to consider it
InBody120 is useful for following fat and muscle while changing your diet or activity. A meaningful consultation benefits from the full computer-generated report; the small display shows only part of the results.
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 | InBody 120 | InBody 770S |
|---|---|---|
| Recording time | ≈ 17 s | ≈ 30 s |
| Body weight range | 5–250 kg | 2–270 kg |
| Height range | 50–300 cm | 95–220 cm |
| Device weight | 4.3 kg | 35.7 kg |
| Measurement frequencies | 20, 100 kHz | 5, 50, 250, 500 kHz; 1 MHz |
| Contact electrodes | 8 | 8 |
| Measurement position | Standing | Standing |
| Operating temperature | 10–40 °C | 10–40 °C |
| Dimensions (width × depth × height) | 392 × 434 × 55.2 mm · without the optional standEvidence | 526 × 854 × 1,175 mmEvidence 1Evidence 2 |
| Age in the cited catalogue | 3–99 yearsEvidence | From 3 yearsEvidence |
| Impedance measurements | 10Evidence | 25Evidence 1Evidence 2 |
| Display | 48 × 24 mm FSTN LCDEvidence | 10.2″ colour touchscreen TFT LCD, 800 × 480Evidence |
| Documented interfaces | RS-232C and Bluetooth; detailed report through LookinBodyModel sources | 4× RS-232C, 2× USB host, USB device, Ethernet, Bluetooth and 2.4/5 GHz Wi-FiEvidence |
| Power | Four AA batteries or a mains adapterModel sources | Not verified |
| Optional stand | 393 × 516 × 732 mm; total weight with stand 5.7 kgModel sources | Not verified |
| Report formats | Screen, optional thermal printer, full report through LookinBodyModel sources | Not verified |
| Controls | Buttons and a separate handpiece; height is enteredModel sources | Not verified |
| Device internal database capacity | Not verified | 100,000 recordsEvidence |
| 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
- InBody — manuál 120, rev. E / 120 manual, revision E (2018)
- InBody — katalog 120 / 120 catalogue (2014)
- InBody 120 — česká produktová stránka / Czech product page
- InBody — příprava / test preparation
- InBody — Annual Report 2024, company history
- InBody — český katalog 770S / Czech 770S catalogue (2025)
- InBody — výrobce 770S / manufacturer 770S
- InBody 770S — česká produktová stránka / Czech product page
- InBody USA — InBody 770S
- InBody Europe — InBody 770S User Manual
- InBody — Annual Report 2025 / výroční zpráva 2025

