> ## Documentation Index
> Fetch the complete documentation index at: https://docs.sonohealth.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Personal EKG vs Smartwatch ECG: Which Should You Use?

> How a dedicated personal EKG compares to a smartwatch ECG feature, the strengths of each, and what neither can do for heart-health screening.

Smartwatches brought ECG features to the wrist, so it's fair to ask whether a dedicated personal EKG still has a place. Both record a single-lead trace — the differences are in purpose, reliability, and how you use them.

<Warning>
  Neither a smartwatch nor a personal EKG diagnoses heart conditions. Both are screening aids. Seek emergency care for chest pain, fainting, or severe breathlessness regardless of what a device shows.
</Warning>

## What they have in common

Both a smartwatch ECG and a personal EKG like the SonoHealth [EKGraph](/ekg/overview) record a **single-lead** trace and can prompt you about a possibly irregular rhythm such as [atrial fibrillation](/ekg/atrial-fibrillation). Both are designed for awareness and for capturing a recording to share with your doctor — not for diagnosis.

## Strengths of a smartwatch

A smartwatch is always on your wrist, can nudge you about an irregular rhythm in the background, and tracks continuous heart-rate trends over time. That convenience means it may catch episodes you didn't notice.

## Strengths of a dedicated personal EKG

A purpose-built device is focused on one job: capturing a clean trace on demand when you feel symptoms. Many people find a dedicated grip-style device easy to use deliberately, and recordings [export as a PDF](/ekg/overview) to bring to a cardiologist. It also doesn't depend on a charged smartwatch or a particular phone ecosystem.

## What neither can do

Neither is a [12-lead EKG](/ekg/single-lead-vs-12-lead), so neither reliably detects a [heart attack](/ekg/heart-attack-vs-arrhythmia) or localizes a problem. Readings can also be affected by movement and poor contact — learn [how to capture a good reading](/ekg/how-to-take-a-good-ekg-reading).

## How to choose

If you already wear a smartwatch and value passive monitoring, it may be enough. If you want a dedicated tool for deliberately recording symptoms — or you don't want to rely on a watch — a personal EKG is a strong fit. Either way, share recordings with your doctor and follow up symptoms in person.

***

**Related:** [Home EKG Overview](/ekg/overview) · [Single-Lead vs 12-Lead](/ekg/single-lead-vs-12-lead) · [Heart Palpitations](/ekg/heart-palpitations) · [How to Capture a Good Reading](/ekg/how-to-take-a-good-ekg-reading)