June 20, 2026 · 7 min read

Continuous ECG Monitoring at Home: What Works in 2026

Five years ago, a continuous ECG meant a Holter monitor, a clinic visit, and a tangle of wires. In 2026, an ECG-grade chest patch can sit invisibly under a shirt for 14 days, streaming beat-by-beat data to a cardiologist's dashboard. The technology is real. The hype is also real. Here's what continuous home ECG monitoring actually delivers — and what to ask before you buy one.

PPG is not ECG

Most consumer wearables — including the Apple Watch, Fitbit, and Galaxy Watch — measure your pulse using PPG (photoplethysmography): a green LED bouncing light off blood vessels in your wrist. PPG is excellent for heart-rate trends and decent for detecting persistent atrial fibrillation. It is not an ECG. ECG measures the electrical activity of the heart directly — the only signal that tells a cardiologist what your rhythm is actually doing.

Single-lead vs multi-lead ECG

Watch-based ECG features (Apple, Withings, Samsung) capture a single-lead ECG when you touch the crown — useful for spot-checks, useless for continuous monitoring. A modern ECG chest patch captures a continuous single-lead trace for 7–14 days, which is what guidelines actually require to characterise paroxysmal arrhythmias.

What to look for in a home ECG device

• Continuous, not spot. 7+ days of unbroken trace beats a thousand on-demand strips.
• Cardiologist review. AI flags events; a human signs them off. Avoid devices that hand you raw alerts with no medical interpretation.
• Regulated medical device. Look for CDSCO (India) or CE / FDA clearance — not just "wellness device" branding.
• Skin compatibility. If you can't wear it for 14 days, it isn't continuous monitoring.
• Data ownership. Your ECG is health data. Confirm where it lives and who can see it.

Where Zayra fits

Zayra's Axiom ECG chest patch runs continuously for up to 14 days, paired with Alyna AI for real-time anomaly detection and a cardiologist-in-the-loop review before any alert reaches you. It is currently in clinical evaluation at PGIMER Chandigarh. For everyday wellness signals — sleep, HRV, resting heart rate — the Zen wristband uses PPG and is meant for trend tracking, not diagnosis.