The technology powering many of the Withings Body Scale measurements is known as multi-frequency bioelectrical impedance analysis.

This method works by sending harmless electrical signals through the body and measuring how different tissues respond. Because muscle, fat, water, and bone conduct electricity differently, sophisticated algorithms can estimate body composition.

Multi-frequency analysis improves accuracy by evaluating tissue characteristics across several signal frequencies. Combined with the scale’s segmental measurement approach, this technology helps generate more detailed and reliable health data.

While no consumer device can perfectly replicate laboratory testing, multi-frequency bioelectrical impedance analysis represents one of the most advanced methods available in home health products.

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