An electronic tattoo measuring only 28 micrometers thick can be worn over the heart, ... The combined ECG and SCG sensor enables the reading of both heartbeats and associated chest movements.

And, as mentioned, the e-tattoo performs dual functions, simultaneously utilizing its two sensors to monitor the heart via both electrocardiography (ECG) and seismocardiography (SCG).

Engineers from the University of Texas at Austin have developed a new flexible e-tattoo that measures two different types of heart activity. (Credit: Cockrell School of Engineering, The University of ...