Samsung ECG App v1.2 user guide and specs

Product Overview

Samsung ECG App v1.2 is an over-the-counter medical app in Samsung Health Monitor that records a single-lead style ECG from a compatible Galaxy Watch and saves the report to your Galaxy phone. This guide is based strictly on Samsung’s official documentation for Samsung ECG App v1.2. It helps adults 22+ capture an ECG, review rhythm labels, and respond appropriately.

In simple terms, the app creates a one-channel electrocardiogram similar to a Lead I ECG, then classifies eligible recordings as atrial fibrillation (AFib) or sinus rhythm to support rhythm identification. It also includes an Irregular Heart Rhythm Notification feature that checks pulse-rate patterns in the background when conditions allow, and may suggest taking an ECG when an irregular rhythm looks consistent with AFib.

ECG apps sit between wellness tracking and clinical testing: they can help you document episodes and share a record with a clinician, but they do not replace diagnosis or treatment. If you are trying to understand intermittent symptoms or you have received repeated alerts, Samsung ECG App v1.2 is meant to help you capture an on-demand ECG and keep the report in one place.

Best suited for:

• Adults 22+ who want an on-demand ECG recording from a compatible Galaxy Watch and Galaxy phone.
• Users who want notifications that may prompt an ECG when an irregular rhythm suggests possible AFib.
• People who need a saved ECG report in the phone app for later reference or discussion with a healthcare professional.

Consider alternatives if:

• You are under 22 years old.
• You have an implanted pacemaker, implanted defibrillator, or another implanted electronic device.
• You have a known arrhythmia other than AFib, since the app is not intended for other arrhythmias.

One easy-to-miss detail: even with irregular rhythm notifications enabled, the watch is not continuously monitoring for AFib. A lack of alerts is not proof that no condition is present, so treat notifications as an opportunistic prompt, not a guarantee.

Safety Warnings

Samsung ECG App v1.2 is intended to support rhythm identification, not to diagnose heart attacks or replace care from a qualified healthcare professional. If you feel unwell or have urgent symptoms, treat that as a medical issue first and use the app only when it is safe to do so. Follow the warnings below to avoid unsafe use and inaccurate results.

Warning: Do not use the ECG feature if you are experiencing shortness of breath, chest pain or pressure, fainting, or what you believe may be a heart attack. Contact emergency services immediately.

• Do not use if you are younger than 22 years old.
• Do not use if you have an implanted pacemaker, implanted cardiac defibrillator, or other implanted electronic device (interference risk).
• Do not use if you have a known arrhythmia other than atrial fibrillation (intended-use limitation).
• Do not change medication or dosage based on app output (treatment risk). Discuss results with a qualified healthcare professional.
• Do not take ECG measurements during physical activity (motion can degrade signal quality and lead to poor or misleading results).
• Avoid taking ECG measurements near strong electromagnetic fields, such as MRI or X-ray equipment, anti-theft systems, or metal detectors (interference risk).
• Do not take ECG measurements during medical procedures such as surgery or external defibrillation (safety and interference risk).
• Only measure when the watch is within operating conditions: temperature 54 F to 104 F (12 C to 40 C) and humidity 30% to 90% relative humidity (accuracy risk outside range).
• For Bluetooth pairing security, pair the Galaxy phone and watch in a private setting rather than a public space (privacy risk).

Installation Instructions

To install and prepare Samsung ECG App v1.2, update your Galaxy Watch, install Samsung Health Monitor on your phone, and complete setup prompts so the watch and phone can record and sync ECG reports. These steps matter because the ECG recording runs on the watch, while reports are stored and reviewed in the phone app. A missed update or pairing issue can prevent activation.

1. Update your Galaxy Watch to the latest software version so it meets the required watch OS level for the ECG feature you plan to use.
2. Install the Samsung Health Monitor app on your Galaxy phone from the Galaxy Store so the phone can store ECG reports and manage settings.
3. Open Samsung Health Monitor on the phone and follow the on-screen setup prompts to activate the ECG feature for your region and device.
4. After setup, open Samsung Health Monitor on the watch and confirm ECG is available so you can start an on-demand recording.
5. To enable Irregular Heart Rhythm Notification, first record at least one ECG that is not poor quality, then use the ECG app launcher screen to start the feature and follow on-screen instructions.

Tip: Before your first recording, confirm the watch is paired over Bluetooth and that you have an active cellular connection during phone-side activation, since activation and syncing depend on connectivity.

How to Use Samsung ECG App v1.2

To use Samsung ECG App v1.2, open Samsung Health Monitor on your Galaxy Watch, start an ECG, and hold a fingertip on the watch Home key for 30 seconds while staying still. This steady contact helps the sensor capture a clean signal. After the recording, review the classification in the phone app and use it to decide whether to contact a clinician.

Recording an on-demand ECG on a Galaxy Watch

Recording works best when the watch has solid skin contact and you avoid movement, because motion and poor contact are the most common causes of unusable traces. Follow the steps below to produce a classifiable ECG and reduce the chance of a poor recording.

1. On the watch, open Samsung Health Monitor and select ECG so the watch enters measurement mode.
2. Wear the watch snugly on your wrist so the sensor maintains consistent contact through the entire recording.
3. Rest your forearm on a flat surface to reduce motion, then lightly place a fingertip of your opposite hand on the watch Home key for 30 seconds.
4. Stay still and avoid talking until the recording completes, since movement can introduce noise and stop the recording.

Note: Pressing the Home key during recording stops the measurement.

Receiving an Irregular Heart Rhythm Notification

When enabled, irregular rhythm notifications rely on periodic checks using the watch’s optical sensor when you are still. If the feature detects a pattern suggestive of AFib, it takes additional readings, and you receive a notification only after a sustained detection window, so alerts may not appear for every episode.

• If the watch detects AFib continuously for about one hour, it can send a notification suggesting you record an ECG.
• If the watch is in bedtime, do not disturb, or theater mode, the alert is delayed until silent mode is turned off.
• After a notification, record an ECG as soon as possible to capture a more accurate rhythm snapshot, then use the result to decide whether to contact your doctor.

Understanding ECG results and what they mean

Samsung ECG App v1.2 can label classifiable recordings as sinus rhythm or AFib, and it can also return inconclusive or poor recording when it cannot classify the trace. Knowing what each label implies helps you choose the next step: repeat the recording, improve contact, or discuss the report with a clinician rather than acting on the app alone.

• Sinus rhythm: A regular rhythm within a typical heart-rate range during the recording. This does not guarantee the absence of other conditions.
• Atrial fibrillation (AFib): An irregular rhythm consistent with AFib during the recording. Contact a doctor for guidance.
• Inconclusive: The trace could not be classified, often due to heart rate being too high or too low, or a rhythm outside sinus rhythm and AFib.
• Poor recording: The app could not analyze the data, commonly due to movement or insufficient skin contact.

Technical Specifications

Samsung ECG App v1.2 requirements mainly come down to compatible Galaxy Watch models, minimum watch OS and phone OS versions, and operating conditions for accurate measurements. These specifications matter because the ECG and notification features depend on specific watch hardware, OS capabilities, and enough local storage to keep monitoring running in the background.

Troubleshooting

If Samsung ECG App v1.2 is not activating, not showing on your watch, or producing poor or inconclusive readings, the cause is usually compatibility, connectivity, storage, or signal quality. Use the table below to match your symptom to a likely cause and a fix. If you still cannot get a usable ECG, the watch may not be detecting a strong enough signal.

Next Steps

After you can record a clean ECG, use the saved report in the phone app as a reference for your own tracking and for conversations with a qualified healthcare professional. If you rely on irregular rhythm notifications, keep at least 10 MB of free watch storage so monitoring does not pause. For the latest regional availability and compatibility, use the Samsung Health Monitor support resources described in the official documentation.

About the Author

User Manual X

usermanualx.com Editorial Team

We research product documentation and create structured setup guides, troubleshooting references, and specification summaries to help users get the most out of their devices.

52 Articles