Fitbit ECG: Does Fitbit have ECG?

If you are looking for a Fitbit ECG Smartwatch, then the Fitbit Sense is the right smartwatch for you. No other Fitbit’s wearable electrocardiogram (ECG/EKG) app or sensor.

Fitbit ECG

Fitbit Sense is the most advanced smartwatch from Fitbit that comes with many health and fitness tracking features. In addition to its ECG features, in this article, I have listed the health tracking features of Fitbit Sense. 

Read also:

Fitbit ECG Watch (Fitbit Sense): Health Tracking Features. 

Fitbit is known for its ability to track complex health and fitness metrics. It can track from your heart rate to skin temperature right from your wrist. 

ECG Feature

Image of Fitbit Sense
  • FDA Approved EKG
  • 30 sec wireless ECG
  • Irregular Heart Rate Detection
  • Detects Atrial Fibrilation
  • Allows you share ECG as PDF

Electrocardiogram (ECG/EKG) tracking is the latest features available on advanced health-tracking smartwatches. Apple first introduced ECG tracking features on its wearables, and Samsung also successfully integrated them.   

Now Fitbit ECG is available on its most advanced Fitbit Sense Smartwatch. Like Apple and Samsung, the ECG tracking feature on Fitbit Sense is approved by the U. S Food and Drug Administration. As it is clinically validated, Fitbit ECG’s reliability is like its rivals, such as Apple and Samsung.  

How to Take an ECG with Fitbit Sense? 

Taking an ECG/EKG with Fitbit Sense is very convenient. You can do this anywhere, anytime. Here is how to do an ECG with Fitbit Sense. 

  1. Wear a Fitbit Sense on your wrist. 
  2. Just sit in a calm and quiet space 
  3. Open ECG App on the Fitbit ECG Watch 
  4. Use the thumb and index finger of the other hand to touch the case (corners of the case) of the smartwatch for 30 seconds. 
  5. After 30 seconds, you can see your ECG result on the screen and the mobile app. 

Once the EKG is done, you can share it with your cardiologist for a look.

If your Fitbit Sense doesn’t have an ECG app, then you should download it. Here is a complete tutorial on how to install ECG App on Fitbit Sense.

What is the possible result of Fitbit ECG? 

Fitbit ECG App assesses your heart rhythm for abnormalities (Atrial Fibrillation). Even if it is not medical-grade equipment, it can give you some critical data about your heart health. Here are some of the possible results of Fitbit ECG.

Fitbit Sense ECG results
Image Credit: Fitbit

Normal Sinus Rhythm: This means that your heart rate and rhythm is normal, and there are no signs of any atrial fibrillation. However, if you feel any discomfort in your chest, you should call the doctor as soon as possible.  

Atrial Fibrillation(AFib): This means that your ECG shows atrial fibrillation signs, and you should immediately call your doctor. If it is not treated on time, it can lead to a heart attack or stroke.

Inconclusive: If your ECG gives Inconclusive results, it means that Fitbit Sense cannot track your ECG because of an increased or decreased heart rate. If your heart rate is greater than 120 bpm or less than 50 bpm, then you may get this result on your Fitbit ECG report.

Fitbit EKG is now available in more than 20 countries such as the USA, Canada, United Kingdom, Ireland, Austria, etc. You can check the complete list of countries that supports Fitbit ECG here.  

How accurate is Fitbit ECG? 

The ECG tracking feature on Fitbit Sense is clinically validated by the FDA. So, you can get accurate ECG reading with your watch. However, Fitbit ECG does not replace clinical-grade medical equipment. But the early detection of irregular heartbeat and atrial fibrillation helps you seek medical attention immediately before the signs appear. 


Fitbit Sense

Apple Watch Series 6

Samsung Galaxy Watch3


Image of Fitbit Sense
Image of Apple Watch Series 6 with GPS and LTE
Image of Samsung Galaxy Watch 3 with GPS and cellular


1. AMOLED Touchscreen Display
2. Screen Size: 1.58"
3. Resoulution: 336 x 336 pixels
4. Muti -Touch
5. Corning Gorilla Glass 3

6. Always-on Display

1. Retina LTPO OLED
2. Size: 1.78 inches
3. Resoulution: 448 x 368 pixels
4. Sapphire crystal glass protection
5. Always on Display

1.Type: Circular Super AMOLED
2.Dimension: 45 x 46.2 x 11.1 mm
3.Color always on display
4.Protection: Corning® Gorilla® Glass DX
5.Weight: 53.8g(without strap)
6.Resolution: 360 x 360

Health Tracking Features

1. ECG Monitoring
2. Heart Rate Monitoring
3. Irregular Heart Rate Detection
4. Detects Atrial Fibrilation
5. Breath rate
6. Stress Tracking
7. Temeprature Tracking
8. Sleep Tracking
9. Female Health Tracking
10. SpO2(Not real time)
11. Heart Rate Zone
12. Heart Rate variability(premium)

1. ECG Monitoring

2. Irregular Heart Rate Detection

3. Irregualr Heart Rate Detection 

4. Detects Atrial Fibrilation

5. Real-time SpO2

6. Sleep Tracking

7. Stress Tracking

8. Female Health Tracking

9. Loud Noice warning

10. Detects fall and call for help

11. Stress Tracking

1. ECG Monitoring
2. Real time SpO2
3. Blood Pressure
4. Sleep Tracking
5. Stress Level Monitoring
6. Female Health Tracking
7. Detects irregular heart rate
8. Detects Atrial Fibrillation
9. Fall Detection and call for help
10. VO2 Max

Fall Detection and Emergency SOS

Not Available



Fitness Tracking Features

1. 20+ Activity Apps
2. Active Zone Minutes
3. Workout Intensity Map
4. Automatic Activity Detection
5. Heart Rate Zone
6. Built-in GPS

1. Activity Ring

2. 17+ Activity Modes

3. Automatic Activity Detection

4. Built-in GPS

5. Swim Tracking

6. Goal Based Activities

1. Automatic Activity Detection
2. Goal Based Activities
3. Built-in GPS
4. Swim Tracking
5. 120 home workout programs
6. Advanced Running Metrics


1. 6 Days of Battery(Typical use)
2. 12 Hours on GPS

1. Up to 18 hours
2. Wireless Charging

1. 2 days
2. Wireless Charging


5 ATM(50 Meters)




1. Optical Heart rate Sensor
2. ECG Sensor
3. SpO2 Sensor
4. Gyroscope
5. Altimeter
6. 3-axis accelerometer
7. Skin temperature sensor
8. Ambient light sensor
9. Built-in GPS + GLONASS
10. Vibration motor

1. Accelerometer

2. Gyroscope

3.  Heart rate Sensor(2nd gen)

4. Barometer

5. Altimeter

6. Compass

7. SpO2 Sensor 

8. VO2max


1. Accelerometer
2. Barometer
3. Gyro Sensor
4. Electrical Heart Sensor(ECG)
5. Optical Heart Rate Sensor(HRM)
6. Light Sensor


Heart Rate Monitoring 

Every smartwatch comes with a heart rate monitor. However, advanced smartwatches like Fitbit Sense, Apple watches, and Samsung watches can alert you if your heart rate goes above or below the standard limit.  

Blood Oxygen Level Monitoring 

The Blood oxygen level monitoring (SpO2) feature on Fitbit Sense is not as advanced as Apple or Samsung wearable. To measure SpO2, you should download and use the SpO2 watch face. 

Related Post: Fitbit Sense Alternative ECG Smartwatches

Additionally, it does not allow you to measure real-time SpO2 like its rivals. It only shows the previous night’s SpO2 on the watch face. It is a significant limitation of Fitbit Sense when compared with other SpO2 smartwatches.  

Skin Temperature Monitoring 

Fitbit Sense has a skin temperature monitoring sensor to track your body temperature. It tracks your body temperature at night and analyzes changes in body temperature based on the baseline temperature.

However, it does not track the skin temperature in real-time. This feature yet not available on other popular wearable technology device manufacturers such as Apple and Samsung. 

Stress Management Score

Fitbit Sense uses an EDA Sensor (Electro Dermal Activity Sensor) to track your stress level.

When you are stressed, you produce more sweat microbursts. The EDA App scans it and assesses your stress level.

If you are a Fitbit Premium Subscriber, you can get more tools to track the stress level. 

Breath Monitoring

Yoga Woman

Fitbit Sense can automatically monitor your respiration while you sleep at night. As it is a crucial vitals sign, any significant variation in your breathing pattern may affect your overall health and fitness. The Fitbit Sense helps you keep an eye on your respiration and enables you to seek medical attention. 

Sleep Tracking

Fitbit Sleep Stats

Sleep Tracking is another excellent feature of Fitbit Sense. Compared with other Smartwatches, the Fitbit Sleep tracker is more accurate. It assesses your various sleep stages such as Awake, REM, light and deep sleep and gives you a sleep score.  

In the app, you can see the estimated oxygen variation chart while you sleep. If you have a Fitbit Premium Subscription, you can get a couple of data such as sleeping heart rate and restlessness. 

Is Fitbit Sense ECG Smartwatch Worth Buying? 

There is no doubt that Fitbit Sense is one of the best health tracking smartwatches available in the market. It also comes with complex health tracking features such as irregular heartbeat and atrial fibrillation detection. 

However, when we compare its features with other smartwatches like Apple watch Series 6 and Samsung Galaxy Watches, it lags. Both devices come with many features which are not yet available on Fitbit Sense.

Saneesh VS is a Registered Nurse by Profession and Wearable Tech Enthusiast by Passion. He loves to write about fitness, smartwatches, and fitness trackers. He also loves reading books on wearable tech, technology in healthcare, artificial intelligence etc., which he has been writing for the past 5 years.

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