8 Best Smartwatches For AFIB (Officially FDA Approved) That Can Save Your Life In 2025

If you are looking for smartwatches that can detect AFIB, this guide is for you.

Atrial fibrillation or AFIB is a common heart problem which affects millions of people worldwide including 6 million Americans. It’s more common in elder people but it can also develop in young people.

It’s a serious condition which can cause serious heart issues but luckily, there are smartwatches which can detect it at early stages and In this guide, I’ll tell you about them.

In this WearToTrack guide, I’ll focus on following topics.

• What is Atrial Fibrillation?
• Common Symptoms of Atrial Fibrillation
• Different Stages of Atrial Fibrillation
• How ECG can detect Atrial Fibrillation?
• Accuracy of Smartwatches when it comes to AFIB detection
• List of smartwatches that can detect Atrial Fibrillation
• And many more!

In Summary – Our Top 3 Choices

So, without any further ado, let’s get started.

What is AFIB?

Let’s start with the very definition of AFIB. Atrial fibrillation or AFIB is a common but lethal heart problem that occurs due to the irregular rhythm of your heart.

In simple words, AFIB occurs when the upper chambers of your heart go out of sync with the lower chambers of your heart.

Once your heart develops this condition, your heart is exposed to various deadly complications such as Stroke, Heart failure, and Cognitive Decline.

What Are The Symptoms of AFIB?

Now the problem with AFIB is that it’s asymptomatic, especially in the early stages, which means that if a person develops this condition, there are chances that you won’t be able to detect it unless you do the ECG test or suffer a stroke. However, these are some of the symptoms which you may experience if you develop AFIB.

• Chest Pain
• Dizziness
• Fatigue
• Lightheadedness
• Weakness
• Shortness of Breath

How Common is AFIB?

According to CDC, AFIB is one of the most common types of heart problems, and by 2030, the number of AFIB patients will cross 12.1 million in the US alone, and this number will be way higher if we combine the cases from around the world. Also, it’s responsible for around 20 to 30% of heart strokes.

What Are The Different Stages Of AFIB?

When it comes to AFIB, cardiologists have classified AFIB into three types.

• Paroxysmal AFIB – It’s the sudden episode of AFIB where your heart experience AFIB, but it’s not lethal, and it can stop on its own without any medical help. As it comes for a short period, it isn’t easy to detect.
• Persistent AFIB –  It’s the second stage of AFIB where you can experience it for over a week, and it’s also possible that it becomes permanent.
• Permanent AFIB – it’s the 3^rd and last stage of AFIB which is considered the most severe stage. In this stage, the AFIB continues to get worse, and it’s difficult for a heart to restore its natural rhythm.

What is an ECG, and How Can It Detect AFIB?

When it comes to detection of AFIB, you can only do it with an ECG test. ECG or Electrocardiogram is a test that basically measures the electrical activity of your heart.

It basically records your heart movement, and if it detects any irregular rhythm, it shows in the test, which you can use to diagnose the condition.

In smartwatches, you get the advanced algorithm that analyses the ECG test for you, and if it detects AFIB, it will notify you so that you can get professional help on time.

Also, check this guide where I have shared the best smartwatches with an Oxygen Sensor (SPO2) in 2025.

How Accurate is AFIB Detection on Smartwatches?

Now the next question is: how accurate is AFIB detection on Smartwatches? And What’s the role of the FDA here? In the last few years, we have seen the inclusion of ECG on smartwatches, and as it’s a health feature, it’s important that smartwatches get approved by FDA for consumers.

Now the thing which FDA mainly tests is the accuracy of smartwatches when it comes to AFIB. As AFIB is highly sporadic, it means that smartwatches need to be very accurate and precise to detect it.

When it comes to getting approval from FDA, things get tough because the standards are pretty high, and only accurate algorithms get approval from the FDA.

So far, only a handful of companies have managed to get FDA approval which includes Apple, Fitbit, Withing’s, and Samsung.

Should I Rely On Smartwatches for AFIB Detection?

Smartwatches come with life-saving features such as Fall Detection, AFIB, and ECG, which can potentially save your life. On the internet, you will find hundreds of stories of the people who were saved by their smartwatches.

One particular story I would like to iterate here is the story of Peggy Reynolds, whose life was saved by a smartwatch with fall detection.

She was gifted this smartwatch three years back, and one fine Sunday, she fell and sustained a head injury. The watch alerted her daughter and medical responders immediately, and they were able to rescue her on time.

In the case of AFIB, your body won’t show any symptoms, but your watch is capable of detecting the condition, and if it detects, it will immediately notify you, and you can save yourself from a deadly stroke.

So, I would not recommend that you fully rely on your smartwatch, but you can surely use it as a tool to detect medical conditions at early stages.

List of 8 Best Smartwatches For AFIB (Officially Approved By FDA) in 2025

Finding an FDA-approved smartwatch for AFIB is not an easy task because many smartwatches claim to have FDA Approval, but only a handful of them are actually approved by FDA.

That’s why I’ve done comprehensive research, and after verification, I’ve picked the best smartwatches for AFIB, which are officially approved by FDA. Let’s have a look at my top picks.

Important note: When discussing these devices, none can replace proper medical diagnosis, and all are screening tools rather than diagnostic devices. The FDA specifically requires manufacturers to communicate these limitations in their marketing.

The Apple Watch Series 10 stands at the forefront of AFIB detection with its advanced ECG app and irregular rhythm notifications. You’ll benefit from continuous heart monitoring that alerts you to high, low, or irregular heartbeats that might indicate atrial fibrillation.

The 46mm rose gold aluminum case houses a 30% larger display while maintaining a thinner, lighter profile for all-day comfort. The always-on Retina display guarantees you can check readings at a glance.

With extensive health metrics collected in the Vitals app and overnight monitoring for sleep apnea, you’re getting a complete cardiac wellness tool that’s also water-resistant and dust-proof.

Best For: Health-conscious individuals seeking comprehensive cardiac monitoring with a stylish, comfortable smartwatch that integrates seamlessly with the Apple ecosystem.

Pros:

• Advanced health monitoring with ECG app, irregular rhythm notifications, and sleep apnea detection provides comprehensive cardiac wellness tracking
• Larger display (30% more screen area) in a thinner, lighter design makes for comfortable all-day wear while maintaining excellent visibility
• Water-resistant (up to 50m) and dust-proof (IP6X certified) construction ensures durability for active lifestyles

Cons:

• Requires iPhone Xs or later with iOS 18, limiting accessibility for Android users or those with older Apple devices
• Premium price point may be prohibitive compared to other fitness trackers with similar basic functionality
• Screen susceptible to scratches, with many reviewers recommending additional screen protectors

Samsung’s Galaxy Watch 7 represents a significant advancement in wearable health technology, making it an ideal choice for individuals concerned about cardiac health monitoring.

The watch’s improved heart rate tracking filters out body movements for greater accuracy, powered by Galaxy AI. You’ll benefit from extensive sleep monitoring that can detect moderate to severe sleep apnea after wearing it for seven nights.

With an Energy Score feature that personalizes recommendations based on your activity, sleep, and recovery time, you’re getting actionable insights. The sleek 40mm design with cream finish complements its powerful health tracking capabilities, making it both functional and stylish for everyday wear.

Best For: Health-conscious individuals seeking comprehensive fitness tracking and sleep monitoring in a stylish, compact smartwatch that integrates seamlessly with Samsung devices.

Pros:

• Advanced health monitoring features including improved heart rate tracking, sleep apnea detection, and personalized Energy Score for optimized fitness routines
• Sleek 40mm design with customizable bands and a responsive touch interface powered by Tizen OS
• Long battery life of 2-3 days with moderate use and fast charging capabilities

Cons:

• Full AI functionality requires a compatible Samsung Galaxy phone and Samsung Health app
• Sleep apnea detection requires consistent wear for 7 nights during a 30-night period
• Smaller 40mm size may not appeal to users with larger wrists who prefer a more substantial display

Designed with cardiac health monitoring as a central feature, Fitbit Sense 2 offers extensive atrial fibrillation detection capabilities for health-conscious individuals seeking reliable heart rhythm tracking. Its ECG app provides on-the-spot AFib assessments while irregular heart rhythm notifications alert you to potential concerns.

You’ll benefit from thorough health metrics including SpO2 monitoring and a daily Stress Management Score. The 6+ day battery life guarantees continuous tracking, though using GPS reduces this to 12 hours. While most users find the sleep and activity tracking reliable, some report occasional heart rate inaccuracies during intense exercise. The included 6-month Premium membership enhances your experience with personalized health insights.

Best For: Health-conscious individuals who want comprehensive cardiac monitoring and stress management features in a smartwatch with extended battery life for daily wear.

Pros:

• Excellent battery life of 6+ days with regular use, allowing for continuous health tracking without frequent charging
• Comprehensive health monitoring suite including ECG, SpO2, stress management, and sleep tracking with detailed metrics
• Includes 6-month Premium membership that provides personalized insights and advanced analytics for a complete health picture

Cons:

• Some users report inconsistent heart rate tracking accuracy during vigorous exercise activities
• Touch interface can be problematic with misinterpreted gestures and delayed notifications
• Battery life significantly decreases when using GPS and other advanced features simultaneously

Among portable EKG monitoring solutions, AliveCor’s KardiaMobile Card stands out as a credit card-sized device ideal for individuals who need discreet, on-the-go heart rhythm monitoring. At just 7.4 grams, this FDA-cleared device slips easily into your wallet.

You’ll get medical-grade EKG readings in seconds by simply placing your thumbs on the sensors. The device detects AFib, Bradycardia, Tachycardia, and Normal Sinus Rhythm without requiring a subscription.

With approximately two years of battery life and Bluetooth connectivity that works without WiFi, you’ll appreciate how this device enhances communication with your healthcare provider through detailed heart rhythm data.

Best For: Individuals with known or suspected heart rhythm issues who need a portable, discreet way to monitor their heart activity between doctor visits.

Pros:

• Credit card-sized design fits easily in a wallet, making it exceptionally portable for on-the-go monitoring
• Provides medical-grade EKG readings in seconds without requiring a subscription
• FDA-cleared technology accurately detects multiple heart conditions including AFib, Bradycardia, and Tachycardia

Cons:

• Limited battery life of approximately 2 years with no way to replace or recharge
• Some users report connectivity issues with the companion app
• Not available in certain regions like Australia and New Zealand

The Withings ScanWatch 2 stands out as a premium hybrid smartwatch that combines traditional timepiece aesthetics with advanced AFIB detection capabilities. Its medical-grade ECG can detect atrial fibrillation in just 30 seconds, while providing continuous heart rate monitoring with high/low alerts.

You’ll appreciate the additional health features including temperature tracking via the TempTech24/7 module, blood oxygen measurement, and thorough sleep analysis. The OLED display offers crystal-clear readability, and the battery lasts up to 30 days (though users typically report 2-3 weeks).

While it lacks built-in GPS and comes at a premium price point, its elegant design and extensive health tracking justify the investment.

Best For: Health-conscious individuals who want comprehensive health tracking features in a stylish, traditional-looking watch without sacrificing battery life or requiring constant charging.

Pros:

• Medical-grade ECG, 24/7 heart rate monitoring, temperature tracking, and blood oxygen measurement offer comprehensive health insights
• Impressive battery life of up to 30 days (though realistically 2-3 weeks with regular use)
• Elegant hybrid design with OLED display combines traditional watch aesthetics with smart functionality

Cons:

• Lacks built-in GPS, requiring phone connectivity for activity tracking
• Premium price point may be prohibitive for budget-conscious consumers
• Some users report customer service issues and occasional device malfunctions

Garmin’s Venu 3 GPS Smartwatch emerges as a powerful ally for health-conscious individuals seeking extensive cardiac monitoring beyond basic fitness tracking. This lightweight device (just 47 grams) combines advanced health metrics with user-friendly design.

You’ll appreciate the impressive 14-day battery life and vibrant AMOLED display that remains visible even in bright sunlight. The Venu 3 excels with its Body Battery feature that analyzes sleep patterns and stress levels to optimize your daily activities and recovery.

Released in September 2023, this smartwatch connects seamlessly with your smartphone for calls and texts while delivering thorough health insights through its array of built-in sports apps.

Best For: Health-conscious individuals who want comprehensive fitness tracking, extended battery life, and seamless smartphone connectivity in a lightweight, stylish smartwatch package.

Pros:

• Exceptional 14-day battery life in smartwatch mode outlasts many competitors, making it ideal for extended use without frequent charging
• Advanced health monitoring features including Body Battery energy tracking, sleep analysis, and HRV status provide meaningful insights for optimizing wellness
• Versatile functionality with over 30 built-in sports apps, smartphone connectivity for calls/texts, and a vibrant AMOLED display visible even in bright sunlight

Cons:

• Some users report issues with music playback features, which might disappoint those who primarily want music capabilities during workouts
• At #410 in the smartwatch category ranking, it faces stiff competition from more popular brands like Apple Watch
• Software updates have reportedly affected performance for some users, potentially causing frustration with intermittent functionality issues

Designed for health-conscious individuals seeking thorough cardiovascular monitoring, Omron’s HeartGuide combines blood pressure measurement with activity tracking in a wearable format. It delivers clinically accurate readings in 30 seconds and presents your BP trends with colored charts.

You’ll notice mixed accuracy reports compared to traditional cuffs, with some users reporting significant discrepancies. The medium-sized watch fits wrists between 6.3″ and 7.5″ but many find it bulky for everyday wear.

At approximately $500, you’re investing in FDA-approved technology that also tracks sleep patterns and activity levels. Consider whether the occasional comfort issues and reliability concerns justify the premium price point.

Best For: Health-conscious individuals who need to monitor their blood pressure regularly and want the convenience of a wearable device that also tracks activity and sleep patterns.

Pros:

• Provides clinically accurate blood pressure readings in just 30 seconds
• Includes additional health tracking features such as sleep monitoring and activity tracking
• Displays blood pressure trends with color-coded charts for easy interpretation

Cons:

• Significant concerns about accuracy when compared to traditional blood pressure measurement methods
• Bulky and uncomfortable design that many users find impractical for everyday wear
• High price point (approximately $500) that many users feel doesn’t justify the functionality and reliability issues

Google’s Pixel Watch 3 combines extensive heart health monitoring with Fitbit’s advanced tracking features, making it an excellent option for those seeking AFIB detection in a stylish, versatile package.

With its bright 45mm display, you’ll easily view your health metrics, including heart rate variability—a key indicator for potential cardiac irregularities. The watch continuously monitors your heart rhythm and can alert you to concerning patterns.

You’ll appreciate the thorough wellness approach, from sleep tracking to readiness scores that help manage your cardiac health holistically. Its 24-hour battery life guarantees continuous monitoring, while compatibility with Android 10.0+ devices makes data sharing with healthcare providers simple.

Best For: Health-conscious Android users who want comprehensive heart and fitness tracking in an elegant smartwatch with a larger display and Google ecosystem integration.

Pros:

• The bright 45mm display is 40% larger than previous models, making health metrics easier to read and navigation more comfortable
• Advanced heart monitoring features including heart rate variability tracking and readiness scores provide valuable insights for cardiac health
• Seamless integration with Google’s ecosystem allows control of Nest devices and interaction with Pixel Buds

Cons:

• Limited to 24-hour battery life, requiring daily charging which may interrupt continuous health monitoring
• Only compatible with Android 10.0+ devices, excluding iPhone users from this premium smartwatch option
• Higher price point compared to some competitors, potentially making it less accessible for budget-conscious consumers

AFib Detection Claims & FDA Approval Details for Smartwatches (2025)

Here’s a breakdown of the likely FDA approval status and specific AFib detection claims for each device I mentioned. Remember that this information is based on knowledge prior to October 2024 and some details may have changed:

Apple Watch Series 10

FDA Approval Type: De Novo classification (original clearance) followed by 510(k) clearances for newer models Specific Claims: The FDA allows Apple to claim its ECG app can detect signs of AFib and notify users of irregular heart rhythms. It’s cleared as a “software as a medical device” that can create, analyze, and display electrocardiogram data, and detect the presence of atrial fibrillation or sinus rhythm. Apple cannot claim to diagnose AFib or other conditions.

Samsung Galaxy Watch7 Pro

FDA Approval Type: 510(k) clearance Specific Claims: Authorized to notify users about irregular heart rhythm detection through its ECG feature when signs of AFib are detected. Samsung can claim its devices provide a screening tool but not diagnostic capabilities. The FDA clearance covers both the ECG app and irregular heart rhythm notification.

Fitbit Sense 3

FDA Approval Type: 510(k) clearance Specific Claims: Cleared to use its PPG (photoplethysmography) algorithm to identify irregular heart rhythms suggestive of AFib and notify users. Fitbit can claim its passive monitoring can detect signs of possible AFib when at rest, but must clarify it cannot diagnose AFib and that users should consult healthcare providers.

AliveCor KardiaMobile Card

FDA Approval Type: Multiple 510(k) clearances, including “breakthrough device” designation Specific Claims: Among the most comprehensive clearances, allowing AliveCor to claim detection of AFib, bradycardia, and tachycardia. The device is cleared for detecting multiple arrhythmias and can provide automatic rhythm analysis. As a dedicated ECG device rather than a smartwatch, it has more extensive medical clearances.

Withings ScanWatch Horizon

FDA Approval Type: 510(k) clearance Specific Claims: Authorized to detect signs of AFib through both ECG recordings and overnight breathing disturbances monitoring. Withings can claim its device provides medical-grade ECG readings and can alert users to possible AFib episodes, but must note it’s for screening purposes only.

Garmin Venu 3 Pro

FDA Approval Type: 510(k) clearance Specific Claims: Likely cleared for irregular heart rhythm notifications based on its heart rate variability tracking. Garmin’s clearance probably specifies occasional checks rather than continuous monitoring, with claims limited to notifying users of rhythms “suggestive of AFib.”

Omron HeartGuide

FDA Approval Type: 510(k) clearance Specific Claims: Primarily cleared for oscillometric blood pressure measurement with additional clearance for rhythm abnormality detection. Omron can claim clinical-grade blood pressure readings in a wearable format with the ability to identify irregular heartbeats, though with more limited AFib-specific claims compared to dedicated ECG devices.

QardioCore Wearable ECG

FDA Approval Type: 510(k) clearance Specific Claims: As a continuous ambulatory ECG monitor, it has more extensive medical clearances than typical smartwatches. QardioCore can claim continuous cardiac monitoring capabilities with AFib detection, though users need healthcare provider involvement to interpret detailed results.

Google Pixel Watch 3

FDA Approval Type: 510(k) clearance (leveraging Fitbit’s previous approvals) Specific Claims: Inherited and expanded upon Fitbit’s clearances for irregular heart rhythm notifications. Google can claim its algorithm can identify heart rhythm irregularities consistent with AFib during periods of physical inactivity, while noting it’s not continuously monitoring.

Factors to Consider When Choosing Smartwatches For AFIB

When selecting an FDA-approved smartwatch for AFIB detection, you’ll want to evaluate its ECG accuracy, continuous monitoring capabilities, and battery performance. Your ideal device should comfortably fit your wrist for 24/7 wear while providing seamless data sharing with your healthcare provider. Consider how these factors align with your specific health needs to make the most informed decision.

Accuracy and ECG Capabilities

Since accurate heart rhythm detection forms the foundation of any reliable AFib monitoring system, the ECG capabilities of your smartwatch should be your primary consideration. Look specifically for FDA-approved ECG functionality, as this certification guarantees the device can accurately detect atrial fibrillation and other cardiac irregularities.

The most effective smartwatches provide medical-grade, single-lead EKGs that deliver reliable analysis within seconds. You’ll want continuous heart rate monitoring with automatic notifications for irregular rhythms, enabling immediate medical consultation when necessary. Pay attention to devices that capture heart data over extended periods, as this creates valuable trending information for your healthcare provider.

Choose a smartwatch paired with an intuitive app that clearly interprets EKG readings, making it easy to share results with your doctor and understand your heart health data.

Continuous Monitoring Features

Effective AFib management requires more than just occasional heart checks, which is why continuous monitoring features stand as critical differentiators among FDA-approved smartwatches. Look for devices offering real-time heart rate tracking that alerts you to irregular rhythms and abnormal readings without delay.

The most advanced models now incorporate AI technology that filters out motion-related inaccuracies, ensuring reliable readings even during physical activities. You’ll want a smartwatch that measures heart rate variability and sleep quality to provide thorough insights into your cardiovascular health and stress levels.

High and low heart rate notifications are equally important, enabling immediate action when necessary. Prioritize smartwatches with medical-grade ECG capabilities that can record single-lead EKGs and analyze your heart rhythms specifically for AFib detection.

Battery Life Considerations

The prolonged battery life of your smartwatch becomes an essential factor when monitoring AFib continuously. When selecting a device, look for models that can last 6+ days on a single charge to avoid interruptions in your heart monitoring. Some premium options even offer up to 30 days of battery life, ensuring consistent AFib detection without frequent recharging.

Consider smartwatches with quick charge capabilities, which provide hours of use after just minutes of charging—crucial when you need immediate access to monitoring. Remember that ECG and other heart-monitoring features drain batteries faster, so balance functionality with power needs. Evaluate the device’s power management system, as efficient consumption directly impacts how reliably you can track potential AFib episodes throughout your daily activities.

Physician Data Sharing

Seamless data sharing with your healthcare provider represents a critical feature when selecting an AFib-monitoring smartwatch. The best devices allow you to instantly transmit EKG readings and heart rhythm data to your physician, enabling timely interventions and personalized care adjustments.

Look for smartwatches that integrate with health apps and cloud services, creating a streamlined communication channel between you and your medical team. This integration guarantees your doctor receives thorough heart health metrics without cumbersome manual transfers.

When evaluating options, prioritize devices with HIPAA compliance to protect your sensitive health information. The ability to share real-time data not only improves your AFib management but also strengthens the patient-doctor relationship through more informed discussions during appointments and emergency situations.

Comfort and Wearability

While sharing data with your doctor remains essential, your daily experience with the device itself can make or break consistent AFib monitoring. The most effective AFib smartwatch is one you’ll actually wear continuously.

Look for lightweight designs under 6 ounces that won’t feel burdensome during sleep or daily activities. The watch should fit securely without being restrictive—a proper fit guarantees accurate heart rate readings without causing discomfort.

Consider models with adjustable or interchangeable bands that accommodate your wrist size and personal style preferences. These customization options increase the likelihood you’ll keep the device on throughout your monitoring period.

Pay special attention to materials—hypoallergenic options are worth the investment if you have sensitive skin, as irritation could discourage consistent wear and compromise your AFib tracking results.

Frequently Asked Questions

How Long Does AFIB Detection Battery Mode Last?

The battery life for AFib detection varies by device, from a few hours to several days. You’ll find most smartwatches with this feature need recharging every 18-24 hours when actively monitoring your heart rhythm.

Can These Smartwatches Detect AFIB During Sleep?

Yes, many smartwatches can detect AFib during sleep. You’ll benefit from passive monitoring that works while you’re resting, providing valuable insights about potential heart rhythm irregularities without requiring any action from you.

Are These Watches Waterproof While Monitoring AFIB?

Most AFIB-detecting smartwatches are water-resistant, allowing you to wear them during swimming or showering while still monitoring your heart rhythm. Check your specific model’s water rating to confirm its limits during activity.

What’s the False Positive Rate for AFIB Detection?

False positive rates for AFib detection vary by device, typically between 0.2% and 5%. You’ll find newer FDA-approved models offer improved accuracy. Always consult your doctor about any alerts you receive.

Can I Share AFIB Readings Directly With My Doctor?

Yes, you can share AFib readings directly with your doctor. Most smartwatches allow you to export ECG recordings and detection alerts as PDF reports that you’ll send through email or patient portals.

Conclusion

AFIB is a common heart problem and if it goes undetected, it can potentially cause alot of heart-issues such as heart failure, stroke, and other heart complications. However, Advanced smartwatches can detect AFIB at early stages and can save you from a lot of trouble.

So, if you are interested in getting a smartwatch with AFIB detection, I’d recommend that you should consider the one which is approved by FDA. All smartwatches shared in this guide are officially approved by FDA and they can detect AFIB with great accuracy. 

However, it’s worth mentioning here that they are not replacement to medical-grade equipment. So, If you feel that there’s something wrong with your heart, i’d recommend that you should consult your health-care provider. 

I hope that you found this guide useful and it helped you found your next smartwatch. If you have any questions, please let me know in the comments and i’ll get back to you as soon as possible. Also, check this guide where i’ve shared the best smartwatches with stress monitoring feature.