Kardia 12L vs Zio

Kardia 12L derives a 12-lead tracing from five electrode placements on one cable. AliveCor announced new cardiac determinations in January 2026, bringing the total to 39, and a European launch in April 2026. Zio is a wear-and-send ECG patch service. The vendor says a deep neural network flags arrhythmias, cardiac technicians validate the findings and a physician report follows, and the bill goes to payers through Medicare-enrolled IDTFs.

A primary care clinic whose patient needs a tracing during the visit gets nothing from a patch worn at home and mailed back, so Zio loses there. A cardiology practice following a patient whose symptoms come and go over days refers for Zio, a service with no public price whose vendor says the algorithm is available in the US, EU, Switzerland, UK and Japan.