How Styku Measures the Body: Technology, Safety, and Accuracy

Overview of Styku scanning technology

The Styku 3D body scanner uses an infrared camera to non-invasively capture measurements of the body. Because it uses infrared imaging rather than radiation or electrical current, it is safe for virtually all clients — including those with pacemakers or other implanted devices.

Accuracy compared to DEXA and other body composition methods

All body composition technologies — including Bioelectrical Impedance Analysis (BIA), Bod Pod, Hydrostatic Weighing, and DEXA — estimate body composition using equations and algorithms. No modality measures fat and lean mass directly; each relies on mathematical models applied to raw data.

Within this landscape, Styku performs at a high level of accuracy. A peer-reviewed scientific study has demonstrated that Styku's body composition analysis is within 1–2% of DEXA, with a correlation of 0.95+ with DEXA for fat mass. This positions Styku as a clinically credible tool for body composition assessment.

📄 Peer-reviewed validation: Styku Phoenix Validation Paper

Measurement precision vs. manual tape measures

Styku's 3D scanning delivers a level of precision that manual methods cannot consistently match:

Method | Variability

Styku 3D scan | Less than 0.5 cm across repeated measurements

Manual tape measure | 0.5 cm to 9 cm depending on the tester

This difference is significant in practice. When tracking client progress over time, small changes in circumference measurements may reflect real body composition changes rather than measurement error — a confidence that manual methods cannot reliably provide.

Applies to: All Styku configurations

Related Resources

• Is the sensor harmful or invasive? Can people with pacemakers be scanned? Can I scan pregnant people?
• How does Styku estimate body composition, and how accurate is it?
• Body Composition Metrics — Body Fat, Lean Mass, Weight, and Sarcopenia