InBody R20
InBody R20: BIA body-composition testing
R20 was developed for home body-composition monitoring and also appears in some fitness services. It gives a basic muscle-and-fat overview. For a more detailed consultation, it matters whether the provider also uses the computer report.
A listing is neither manufacturer endorsement nor an accuracy rating.
A practical guide to the test
Learn what happens during the test, how to prepare and what to ask when booking. Always confirm that the provider offers the specific service.
What InBody R20 measures
R20 was developed for home body-composition monitoring and also appears in some fitness services. It gives a basic muscle-and-fat overview. For a more detailed consultation, it matters whether the provider also uses the computer report.
Manufacturer specifications describe the model. They do not confirm the report a provider supplies or public service availability.
Specifications: InBody R20
- Recording time
- 30 s
- Body weight range
- 10–150 kg
- Device weight
- 3 kg
- Measurement frequencies
- 20, 100 kHz
- Contact electrodes
- 8
- Measurement position
- Standing
- Operating temperature
- 10–40 °C
Additional documented technical specifications
- Dimensions (width × depth × height)
- 321 × 360 × 58 mmEvidence
- Age in the cited catalogue
- 6–99 yearsEvidence
- Impedance measurements
- 10Evidence
- Device internal database capacity
- 300 recordsEvidence
- Display
- LCD with basic results and buttonsEvidence
- Documented interfaces
- Cable USB to the original Lookin’Body Basic. Bluetooth belongs to the R20B variant.Model sources
- Power
- AA batteries; the original documentation specifies battery operationModel sources
- Modes
- Body composition analysis and weight-only modeModel sources
- Detailed report
- Original Lookin’Body Basic on a computer; requires a working connectionModel sources
- Variants
- Original R20 with USB; R20B is a separate Bluetooth variantModel sources
Ages and ranges are documentation entries, not confirmation of suitability for an individual visitor. Dimensions use width, depth, height; pictured accessories may be optional.
How it measures
BIA measures electrical impedance. A model uses this to estimate body composition, including fat and fat-free mass. InBody is a BIA brand, not a separate method. Fluid status can influence the result.
Benefits
- Compare the documented model specifications before choosing a provider.
What the device does not tell you
- 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.
Compare devices
For tracking change, ask about using the same device and procedure and having the results explained. For clinical examination, confirm referral and booking requirements with the provider. Differences between methods are not automatically changes in your body.
Preparation and comparability
Follow the specific device manual and provider instructions. For repeat BIA, keep time of day and food, activity and fluid conditions similar. Ask the provider about suitability and safety, especially during pregnancy or with implanted electronic devices.
Choose a test →Use and history
Documented use settings
These describe the model context, not available providers or confirmed partnerships.
What to check before choosing
Before visiting, ask about the full report, an explanation and comparison with earlier results. R20 does not provide phase angle or detailed water analysis; choose another model for those questions.
Exact-model history
The manufacturer’s Korean press release dates the home-use InBody R20 launch to 2006. It does not specify its first Czech sale. R20B is a separate variant from the same period.