Methods, systems, and non-transitory computer-readable recording media are provided for measuring multiple bio-signals. A method is provided for measuring multiple bio-signals including acquiring a first bio-signal from a first device disposed at a first point on a human body. The method also includes acquiring a second bio-signal from a second device disposed at a second point on the human body. The method additionally includes quantizing the acquired first bio-signal and second bio-signal. The method further includes synchronizing the quantized first bio-signal and second bio-signal. The method also includes generating biometric information with reference to the synchronized first bio-signal and second bio-signal.