11 Best Smartwatches with ECG FDA Approved (Latest)

One of the significant causes of death these days is a sudden heart attack. In the USA after every 40 seconds a person has a heart attack. For this reason, monitoring early signs of heart attack is essential so that it can be prevented. All you need is the best smartwatch with ECG to monitor your heart.

Smartwatches are evolving day by day. From fitness trackers to other sensors, these watches are helping people monitor their sleep, exercise, everyday life, and general health.

This technology is helping people keep a closer look at their heart health. These watches can even be used for identifying atrial fibrillation, which is one of the leading causes of stroke.

After taking an ECG in the smartwatch, it generates a PDF report that you can share with your doctor for a more valuable consultant.

Apart from this, you can also check your blood pressure, heart rate, stress, and more.

We have tested a lot of smartwatches, but not every watch gives an accurate and precise performance. In this article, we will share some of the best smartwatches for ECG, and the FDA approves all these watches.

So let’s have a look.


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What is ECG/EKG(Electrocardiogram)?

How Does An ECG Work In A Smartwatch

During an electrocardiogram, your heart’s electrical activity is recorded. Heart disease is quickly detected and monitored with this painless test.

ECG is one of the fastest and the simplest tests and is done by placing electrodes at certain essential spots of the body, including your chest, legs, and arms.

Using the lead wires, the electrodes are connected to an ECG machine. This process provides you with your heart’s electrical activity, which is then measured, analyzed, and printed out.

Remember, during an ECG, no electricity is sent into your body. Electrical impulses help keep blood flowing effectively in the heart by coordinating contractions of different parts.

An ECG test provides a lot of essential information to the doctor. This information includes:

  • Fast heart rate (tachycardia)
  • Slow heart rate (bradycardia)
  • Heart rhythm
  • Heart-rate irregularities
  • Heart attack
  • Heart block
  • Atrial fibrillation
  • Ventricular fibrillation

Until modern wireless ECG devices became available, it was impossible to record your ECG at home. However, a smartwatch can alert users of abnormal heart rhythms (cardiac arrhythmias), but it cannot recognize a heart attack. 

This allows you to get medical attention as soon as possible before any further complications arise.

What Is An Atrial Fibrillation?

How Does An ECG Work In A Smartwatch

Atrial fibrillation (AFib) is an irregular and sometimes very rapid heart rhythm (arrhythmia) that may lead to blood clots in the heart. In addition to stroke and heart failure, A-fib increases the risk of heart-related complications.

The symptoms of Atrial Fibrillation are fatigue, chest pain, shortness of breath, etc., and are caused by Lung diseases, Sleep apnea, high blood pressure, heart attack, etc.

What Is A Ventricular Fibrillation?

Fibrillation of the ventricles is a type of abnormal heart rhythm (arrhythmia). In ventricular fibrillation, the lower heart chambers (ventricles) twitch (quiver) uselessly due to disorganized heart signals. 

Consequently, the heart does not pump blood to the rest of the body. The most common symptom of ventricular fibrillation is collapse and loss of consciousness.

How Does An ECG Work In A Smartwatch?

ecg smartwatches

Smartwatches record an ECG by creating an electrical circuit in the wearer’s body. To do this, the watch uses the heart rate monitor on the back of the case, which is pressed against the wrist.

Using a finger from the opposite hand, the wearer touches the front or side of the case. Most ECGs are completed in 30 seconds, and the collected data is sent to a smartphone app.

This app allows users to view, store, and forward their data to a doctor, if necessary.

A smartwatch with ECG capabilities can only detect irregular heart rates and atrial fibrillation. You cannot gain an in-depth understanding of your heart health or cardiac diseases from ECG smartwatches.

ECG Smartwatches have PPG sensors that sense electrical pulses that produce a heartbeat.

Accuracy Of ECG Smartwatch

If you are going to buy an ECG smartwatch, you should go with that smartwatch approved by the FDA (Food and Drug Administration).

ECG smartwatches that are FDA-approved are clinically validated to be accurate. FDA tests the device profoundly and thoroughly for its performance and accuracy. This makes it difficult to get FDA approval.

The ECG smartwatches are very convenient because these smartwatches allow you to take multiple ECGs directly from your wrist. These smartwatches are helpful because they keep you alert and save you from significant complications.

  • Convenient
  • Easy to use
  • It doesn’t use cables and wires
  • Time-saving
  • Detects Atrial Fibrillation
  • Doesn’t detect heart attack
  • Expensive
  • Can’t replace medical devices.

11 Best ECG Smartwatches Approved With FDA

If you are planning to get the best smartwatch with ECG, then these are the ones you should look to:

  • Apple Watch Series 6
  • Fitbit Sense Advanced Smartwatch
  • Samsung Galaxy Watch Active 2
  • Apple Watch 7
  • Fitbit Charge 5
  • Samsung Galaxy Watch 3
  • Garmin Forerunner 235 GPS Sport Watch
  • Newest Garmin Vivoactive 4 GPS Smartwatch
  • Galaxy Watch 4
  • Apple Watch 5
  • SOREX EG4 Smartwatch

1- Apple Watch Series 6

smartwatch with ecg

Apple Watch Series 6 is one of the best smartwatches with ECG because it is FDA approved and counts the blood oxygen level. It can track irregular heart rate and atrial fibrillation. It is easy and simple to use.

The ECG recording steps are the same for Apple Watch Series 4, 5, and 6. All you have to do is to look for a quiet and calm place. Open the ECG app and touch the Apple watch crown for 30 seconds.

You will get a guide about reading and notification of whether the reading was abnormal or normal.

You can share the ECG details with your doctor to get professional advice. Apple Health smartwatch app will provide you with an EKG graph of heart rate.

The watch has a SpO2 feature along with an advanced that can monitor blood oxygen levels accurately. Apple Watch Series 6 also provides notifications for irregular heart rhythms.

Not only the blood oxygen feature and ECG, but it also serves as the complete package for fitness and health needs. It has a sleep monitor, fitness tracker, elevation tracker, voice assistant, and heart rate monitor.

Along with health tracking functions, it can also track outdoor and indoor activities. It can measure workouts such as walking, swimming, running, cycling and yoga. Apple Watch Series 6 is 20% faster than Series 5 and has a swim-proof design.

  • FDA Approved
  • Monitors blood oxygen level
  • LTE connectivity
  • Built-in music storage
  • Overpriced
  • Works only with Apple Health Smartwatch app

2- Fitbit Sense Advanced Smartwatch

best smartwatch with ecg app

Fitbit is a renowned company for fitness trackers and smartwatches. Fitbit Sense Advanced Smartwatch has full features of fitness and health with the ability to perform an ECG.

It also includes HRM and is perfect to wear anytime and anywhere.

For taking the electrocardiogram reading, wear your watch and place your finger on an aluminum case. Fitbit Sense will monitor unusual low and high heart rates. It gives notifications for irregular heart rhythms, and you can share these results with your doctor through the Fitbit ECG app. PPG sensors scan these abnormal rhythms.

However, the ECG app for Fitbit Sense operates only in selected countries. It does not work in UK, USA, Europe, New Zealand, Singapore, and Canada.

Apart from this, there are multiple features of this watch that you can enjoy. You can control your alarms, bedtime reminders, and smart home devices, and this all can be done by just speaking to it.

It has an EDA scan that can detect electrodermal activity. This will indicate the response of the body to stress. Fitbit Sense Advanced has built-in temperature sensors that can monitor your body temperature. In this way, you will have an idea of temperature variation.

  • PPG sensors
  • EDA scans for electrodermal activity
  • Notifications for irregular heart rate
  • Temperature sensors

3- Apple Watch 7

Apple Watch 7 

Apple Watch 7 is a new addition in the Apple watch product line. The latest flagship watch comes with revolutionary sensors that take your ECG anytime. 

The watch is tested several times and every time it shows very precise results. Once you have taken ECG on your Apple Watch 7 it shows following results. 

How ECG app Works On Apple Watch 7

There are built-in Electrodes into the Digital crown that takes the readings. When you touch your finger with Digital Crown it reads your heart’s electrical signals. You have to touch the digital crown for 30 seconds to generate a complete waveform. 

And after taking ECG your Apple Watch 7 shows you following results, which you must know inorder to maintain your normal heart rhythm.

Sinus Rhythm: If your ECG results show a Sinus rhythm it means your heart beat is in a uniform pattern between 50 and 100 BPM. But in case of any fatigue on your chest you should consult with your doctor.   

Atrial Fibrillation: This indicates an irregular heartbeat pattern. Atrial fibrillation is a serious form of arrhythmia, and if you notice AFib then you must talk to your doctor.

Low or high heart rate: In Apple Watch 7 ECG app also detects your heart rate. But this will only track your heart rate if it’s between 50-120 BPM   

Inconclusive: Sometimes your Apple watch shows inconclusive results because of several reasons. Few physiological conditions prevent some users from creating enough signal to produce good results. Similarly, an ECG app will not work correctly if you have a pacemaker. 

How you can get best ECG results on Apple Watch 7:

  •  Reset your arm on any table and try to relax your whole body.
  •  Make sure the band should be tight enough to take signals.
  •  Make sure your Apple watch and wrist is dry. 
  • Don’t keep any electronics device around you during ECG. 
  • FDA approved and most accurate smartwatch for ECG 
  • Give in depth ECG report that you can share with your doctor
  • Irregular heart alerts
  • Comes with lot of advance and new fitness tracking features
  • Battery life could be improve
  • Expensive

4- Fitbit Charge 5


Finally, Fitbit introduced the first fitness tracker that comes with an FDA approved ECG app. And it’s one of the budget friendly trackers that offer more advanced features for fitness lovers. 

In Fitbit Product line, the ECG app was first unveiled in Fitbit Sense, and Fitbit Charge 5 is the second Fitbit’s device with an ECG app. You can take ECG readings by simply putting your fingers on stainless steel panels on each side for at least 30 seconds. 

Apart from this, the Fitbit Charge 5 is packed with tons of health and fitness tracking features that help you to achieve your fitness goals. There is also a SpO2 sensor that measures the amount of Oxygen in your blood.

So during any activity it shows your SpO2 reading, heart rate, calories burned, intensity (low-high), average cadence, speed, distance, and much more. Because of in depth fitness tracking we strongly recommend this fitness tracker to fitness enthusiasts. 

Further, there are built-in sports modes so you can keep track of your every outdoor activity. The Fitbit Charge 5 also offers Women’s health tracking so she can monitor her cycles. 

This time Fitbit also added a built-in GPS in this tracker which is a big plus point. If you talk about its battery life it will give you 5 days of average battery time which is good. Overall, this is a good fitness tracker with a sleek and minimalist design that feels more comfortable on the wrist.

  • Very light weight
  • Built-in GPS
  • Sleep tracking is excellent
  • Irregular heart rate alerts
  • Few watch faces 
  • No music storage 

5- Samsung Galaxy Watch Active 2

best smartwatch for heart patients

Samsung Galaxy Watch Active 2 is another option if you are looking for the best smartwatch with ECG functionality. This watch provides you with automatic detection of your heart rate so you can check if it is normal. It can detect abnormal variations in heart rate and quickly alerts you.

Taking the reading for ECG is simple with Samsung Galaxy Watch 2. You need to wear your watch and put the finger of the opposite hand on the case.

This watch conducts the ECG rate with the use of a heart rate sensor.

ecg on galaxy watch active 2

An important thing you need to remember while taking ECG reading is to stay as calm as possible. Resting your forearm over a flat surface is also essential. Do not shift for 30 seconds while taking ECG readings.

It comes with a built-in sleep tracker, which provides valuable information and ways to get better sleep at night. This watch has the functionality of monitoring stress levels and also helps you normalize with the integrated Calm app.

It can track physical activities, and health tracking features such as calorie tracking, ECG, sleep, and stress tracking. Samsung Galaxy Watch 2 is perfect for people with a thin wrist because of its light, sleek and thin design. It is ideal for wearing on any occasion.

To track ECG on Galaxy Watch Active 2, you have to install some additional files; there are many ways to do this, but you can follow this guide to install ECG and blood pressure apps on your watch.
  • Sleek and comfortable to wear
  • Notification support
  • Heart rate and health tracking
  • GPS and LTE connectivity
  • Overpriced
  • Do not work with devices released before 2019


6- Samsung Galaxy Watch 3

watch for heart patients

This watch can give you valuable insights into your health and fitness. You can keep a look at your physical activities. It is an FDA-approved smartwatch with ECG functionality. Moreover, it can serve as the best alternative to Apple Watch Series 6.

It is packed with an additional feature of monitoring blood pressure along with ECG. What makes it best is its multiple functions such as ECG, Blood oxygen level, heart rate monitoring, calorie tracking, and blood pressure monitoring.

One of the excellent features of this watch is fall detection. There are advanced sensors that can detect hard falls and immediately send a message to the emergency number of your location. It will automatically call Emergency service if the fall alarm is not deactivated in a few minutes.

With all these features, this watch is best for people with blood pressure issues. It is available in two versions, 41 and 45mm. This watch has all the elements that will keep you on the right path. It will detect your stress levels and provide you guidelines for calm breathing, and helps to relax.

The health monitor app of Samsung is licensed for South Korea, the US, and Europe, but soon it is coming to other countries such as UK, Germany, Italy, Spain, Switzerland, etc.

  • FDA Approved for ECG monitoring
  • Rotating bezel and premium design
  • Waterproof
  • LTE/4G connectivity
  • Slightly overpriced
  • ECG feature works only with Galaxy smartphones.

7- Garmin Forerunner 235 GPS Sport Watch

Garmin Forerunner 235 is a multi-sports GPS smartwatch that will keep track of your stats. It counts the number of crunches and everything that you need to know about your workout performance. This watch monitors your workout load and helps you see if you are overdoing it.

The watch keeps all information about running form, your performance, your goals, and training. Tracking the running dynamics will help you to be in your state. Another essential feature of this watch is the training plan by the Garmin coach, which is free.

It has assistance and incident detection features. Moreover, it has a high-resolution display that allows you to see read the dial under direct sunlight. Because of its thinner and lighter design, you will never feel stress on your wrist. 

It tracks your heart rate all day, smartphone notification feature, access to IQ app store of Garmin Connect, and music controls.

This watch acts more like your boss because it prepares you for your next workout. It can predict race timing and the recovery time and advisor. In this way, it gives you an idea about when to start your next training.

Another essential feature is the VO2 MAX. It is a metric usually used by athletes to measure the maximum oxygen amount during a workout. Additional running features include interval workout, auto lap, auto pause, and keeping personal tracking records.

  • Monitors heart rate
  • Smart notification
  • Tracker for different activities
  • GPS accuracy
  • VO2 MAX feature
  • Connection issues
  • No data organization
  • No music

8- Garmin Vivoactive 4 GPS Smartwatch

fda approved watches with ecg

This watch is best for checking your energy levels after all the physical activities during the day. It takes data by tracking your activity, sleep, stress, and heart rate variability (HRV).

The watch has built-in features which constantly keep a check on your heart rate.

Its notification feature alerts you when the heart rate is too high or too low when you rest. You can also receive notifications about texts, emails, and alerts when paired with a smartphone. Moreover, it helps you understand how hard you are working, either in the gym or underwater.

The Pulse Ox sensor in-app can track blood oxygen saturation and respiration level for monitoring the number of breaths in a minute. It has excellent built-in GPS features that will keep track of every move. The GPS feature also tracks running, walking, pool swimming, cycling, golf, etc.

This watch also helps you with more than 40 screen workouts for cardio, Pilates, yoga, and strength training. You can follow the animation and perform the technique and form as it demonstrates on watch. So no worries if you are missing your gym for few days.

  • Best for exercise tracking
  • GPS accuracy
  • Workout stats
  • Music streaming
  • Battery life
  • Expensive

9- Apple Watch Series 5

Apple Watch Series 5

The Apple Watch 5 is a luxury watch with several health functions like sleep tracking, calorie tracking, heart rate monitoring, and electrocardiogram (ECG) monitoring. It is one of the best ECG watches on the market.

The great advantage of this ECG watch is that FDA approves it. You can easily take an ECG reading with this smartwatch, and you’ll have it recorded in less than 30 seconds!

Apple Watches also have a life-saving fall detection function. It will immediately contact emergency services with your location if you suffered a serious fall and did not answer for one minute.

Moreover, you can track your speed, distance, and direction with the watch’s integrated GPS.

With normal use, the battery life of this Apple watch is 18 hours. However, it is mainly determined by how much you use your watch.

Sadly, there is no way to monitor blood oxygen levels with the Apple Watch Series 5. Furthermore, just like the Series 6, the Series 5 will only operate with iPhones. Thus, this watch is only worth buying if you already own an iPhone.

All in all, if you’re searching for an affordable smartwatch with ECG, this is one of the best ECG smartwatches in 2021.

  • Premium design
  • Fall detection
  • Built-in GPS
  • FDA Approved
  • Support music
  • Battery life should be improve
  • No SpO2 Monitor

10- Samsung Galaxy Watch 4

Samsung Galaxy Watch 4

Samsung Galaxy Watch 4 is the best Android smartwatch if you want an FDA-approved ECG smartwatch. It has a variety of health-tracking capabilities, including FDA-approved ECG, blood oxygen level monitoring, and abnormal heart rate detection.

With the ECG App on this watch, you can be alerted to any changes in your heart rate. It also includes advanced sleep-tracking capabilities as well as stress reminders.

This ECG smartwatch comes with various health tracking features, including blood pressure monitoring, SpO2, VO2 Max, and more. It also keeps track of how many steps you take each day, how many calories you burn, and how well you sleep.

The Galaxy Watch 4 is unique among smartwatches since it features a BioActive Sensor that measures your body composition. It is essential to track your caloric intake if you want to lose or gain weight.

With the built-in GPS, it is possible to track both indoor and outdoor activities like running, bicycling, yoga, and hiking with the watch. Also, this smartwatch has music storage and playback capabilities.

The Samsung Galaxy Smartwatch also has fall detection, which is a great feature. Because of its advanced sensors, this watch will send an SOS message to the emergency services if you suffer a hard fall.

As a whole, Samsung Galaxy 4 is the finest smartwatch for ECG 2021 in terms of features. You may buy it with confidence and take advantage of its benefits.

  • Sleek design
  • Advanced fitness tracking features
  • Built-in GPS
  • Durable
  • Comfortable to wear
  • Good battery life
  • Expensive

11- SOREX SG5 Smartwatch

This smartwatch is health-focused because of its ECG and PPT features. These features help in detecting potential abnormalities in the heart.

PPT feature can perform a PPT test that shows abnormalities in heart rate variability or QT interval. It also shows variations in time between the heartbeats.

This test can help in explanation and diagnosis. It comes with a complete heart rate package that includes a smartwatch, 10 electrodes, and a watch base. This package helps perform PPT and ECG tests to check any abnormality, heart rate variability, and QT interval.

Another essential feature in this watch is SpO2, Blood pressure, and sleep monitoring sensor. It accurately measures blood oxygen levels along with blood pressure.

Moreover, it helps in tracking sleep patterns. All these features can help you keep a close look at your health and take action to stay healthy and active.

The 10 sport modes in SOREX SG5 helps in maintaining a healthy lifestyle as it shows dynamic data on the homepage such as calories, steps, temperature, and weather. You can also enjoy sleep goal setting, monitoring, music control, sedentary reminder, countdown, stopwatch, HRV data analysis, etc.

  • ECG and PPT features
  • Heart rate package
  • Battery life
  • SpO2 feature
  • No accurate sleep tracking
  • Connectivity issues

Things To Consider Before Buying A Best Smartwatch With ECG

No matter which ECG smartwatch you will buy, you must consider these factors to buy the perfect one.


To get the perfect ECG smartwatch, first of all, you have to consider the accuracy of that smartwatch. If that watch gives accurate results of the ECG app, then you are ready to go for that watch.

SpO2 Feature

The best smartwatch with ECG is incomplete without the SpO2 feature. By using this feature, you can find out how well your heart pumps oxygen throughout your body.

People with conditions that affect blood oxygen levels may use it to monitor their health, especially if they are in the hospital.

FDA Approved

The next thing that you have to check in the watch that you are going to buy is whether it is FDA approved or not. If yes, then you can go for that watch.

An FDA-approved product means that the FDA has decided that the product’s benefits outweigh the known risks. The manufacturer must submit a pre-market approval application and results of clinical testing.

PPG  Sensor

For monitoring heart rate, photoplethysmography (PPG) is an uncomplicated and inexpensive optical measurement method. 

PPG measures the volumetric variations of blood circulation by using a light source and a photodetector at the skin’s surface.

The PPG sensor is the plus point for the best ECG smartwatches.

Temperature Sensor

Signals from this sensor are used to measure temperature. When it detects a temperature change, the sensor produces an electrical voltage or resistance.

If the watch contains this feature, it is the plus point for that watch, and you are pretty good to go for it.


There is no doubt that the number of deaths because of sudden heart attacks increases day by day. It is essential to keep track of your heart rate, and overall health is essential. Therefore we provided you with information about the popular choices for the best smartwatch with ECG.

Apple Watch Series 6 is the most popular smartwatch with ECG functionality. It can alert you immediately for any abnormality in your heart rate.

I hope we were able to guide you thoroughly and provide answers to your questions. I hope you had a great time reading this article, and it will be great if you choose a smartwatch from our list.

Frequently Asked Questions (FAQs)

Can a smartwatch detect heart problems?

Smartwatches aren’t meant to be used for medical purposes. Advanced smartwatches such as the Apple Watch Series4, 5, 6, the Samsung Galaxy Watch2, 3, 4, and the Fitbit Sense can detect health concerns such as irregular heart rate or atrial fibrillation.

What’s the cheapest ECG watch?

The Fitbit Sense is the FDA-approved ECG smartwatch that costs the least. The price ranges from $240 to $290, depending on where you shop.

What are the benefits of using a clinically validated ECG watch?

ECG devices that have been clinically validated go through rigorous testing to ensure they are reliable and accurate. On the market, you’ll find many affordable smartwatches equipped with ECGs.

However, they have not been clinically validated. Because of this, these devices may not be able to follow the ECG as precisely as devices that have undergone extensive testing in the clinical setting.

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