BenchECG and xECG: a benchmark and baseline for ECG foundation models (xLSTM)

Lunelli, Nicolson (equal contribution), Pröll, Reinstadler, Bauer, Dlaska (Digital Cardiology Lab, Medical University of Innsbruck)

npj Digital Medicine· 2025
ECGFoundation ModelOpen WeightsDOI

Reported benchmarks

AFib / arrhythmia

Stanford wrist PPG AF (DeepBeat) · AUROC ↑

#1 of 2
0.883

DeepBeat wrist-PPG AF, full finetune, 5-run mean ±0.019 (npj 2026 BenchECG); same protocol ECGFounder 0.846, ECG-CPC 0.832

AFib / arrhythmia

Stanford wrist PPG AF (DeepBeat) · AUROC ↑

#2 of 2
0.751

Frozen ECG-pretrained encoder on wrist PPG, 5-run mean ±0.013

Updated: Oct 8, 2026