patch vs strap

A pro cyclist wears W2ND via stick-on electrodes. These electrodes provide a method to wear the heart rate monitor without having to use the traditional chest belt. These stick-on electrodes may last a couple of uses if stored with the removable backing they come with, however fresh pads are ideal for best quality signal.

stick-on electrode images

stick-on electrode waveform

While this waveform may not look like what one would expect from a good quality signal, it is in fact, perfect. The data from this signal is crunched in our algorithms with no change in accuracy or performance.


After placing the stick-on electrodes, connect W2ND to the app and verify that the non-medical ecg looks similar to this waveform.

W2ND devices ready to ship to your door!