Six-lead device superior to single-lead smartwatch ECG in atrial fibrillation detection

Josca Scholten, Ward P. J. Jansen, Thomas Horsthuis, Anuska D. Mahes, Michiel M. Winter, Aeilko H. Zwinderman, Jan T. Keijer, Madelon Minneboo, Joris R. de Groot, Jouke P. Bokma

Research output: Contribution to journalComment/Letter to the editorAcademic


This was a head-to-head comparative study on different electrocardiogram (ECG)-based smartwatches and devices for atrial fibrillation detection. We prospectively included 220 patients scheduled for electrical cardioversion and recorded ECGs with 3 different devices (Withings Move ECG, Apple Watch 5, Kardia Mobile 6-leads) as well as the standard 12-lead ECG (gold standard), both before and after cardioversion. All atrial fibrillation detection algorithms had high accuracy (sensitivity and specificity: 91–99%) but were hampered by uninterpretable recordings (20–24%). In cardiologists’ interpretation, the 6-lead device was superior (sensitivity 99%, specificity 97%) to both single-lead smartwatches (P < .05) for atrial fibrillation detection.

Original languageEnglish
Pages (from-to)53-58
Number of pages6
JournalAmerican heart journal
Publication statusPublished - 1 Nov 2022

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