Watches with ECG have become essential tools for those seeking continuous heart health monitoring in a convenient smartwatch form. The Fitbit Sense 2 stands out as the best overall for its comprehensive health features and user-friendly design. For those prioritizing accuracy, the Withings ScanWatch 2 offers a hybrid approach with long battery life and detailed monitoring. However, buyers often face tradeoffs between device complexity, battery life, and affordability. Keep reading for an in-depth look at what makes each option unique and how to choose the right watch with ECG for your needs.
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Key Takeaways
- The top picks combine accurate ECG readings with user-friendly interfaces, but some sacrifices are made in battery life or advanced features.
- Hybrid models like Withings balance traditional watch aesthetics with health monitoring, appealing to those who want style and function.
- Price often correlates with feature set; more expensive watches tend to offer broader health insights and better build quality.
- Compatibility with your smartphone ecosystem (iOS or Android) can influence your choice, especially for app integrations.
- Battery life varies widely; choosing between daily charging or longer-lasting models depends on your usage habits.
| watches with ecg | Battery Life | Connectivity | Water Resistance |
|---|---|---|---|
| EMAY 6L Portable ECG Monitor | | — | USB, Bluetooth | — |
| Fitbit Sense Health & Fitness | 6+ days | — | 50 meters |
| Withings ScanWatch 2 | 35 days | — | — |
| Fitbit Sense 2 Advanced Health | 6+ days | — | 50 meters |
| Samsung Galaxy Watch 4 Classic | — | Bluetooth | — |
| Fitbit Sense Health & Fitness | 6+ days | Bluetooth, GPS + GLONASS | 50 meters |
| Samsung Galaxy Watch 4 40mm Bl | — | Bluetooth, LTE, GPS | — |
| Fitbit Sense 2 Health and Fitn | 6+ days | Bluetooth, Amazon Alexa, Google Wallet & Maps | 50 meters |
| Fitbit Sense 2 Health and Fitn | 6+ days | — | 50 meters |
More Details on Our Top Picks
EMAY 6L Portable ECG Monitor | Record ECG and Heart Rate in 6 Channels | Compatible with Smartphone and PC
This portable ECG monitor stands out for its focus on simplicity and affordability in home health care. Unlike the Fitbit Sense or Samsung Galaxy Watch 4, it prioritizes ECG recording over extensive fitness features, making it ideal for those primarily concerned with heart rhythm tracking. While it lacks the advanced sensors or stylish design of full smartwatches, its plug-and-play compatibility with smartphones and PCs ensures ease of use without subscription fees. The 6-channel ECG capability provides detailed signals, though it isn’t suited for users with implanted pacemakers or those seeking medical-grade diagnostics. The device’s portability and rechargeable battery make it practical for frequent use at home or on-the-go, but it cannot replace hospital-grade equipment for critical diagnostics.
Pros:- Affordable, no subscription costs
- Compatible with smartphones and PCs
- Portable and easy to operate
Cons:- Not suitable for use with implanted pacemakers
- Limited to ECG and heart rate measurement, not a comprehensive medical device
Best for: Individuals needing affordable, portable ECG monitoring for routine heart health checks at home.
Not ideal for: Patients requiring detailed medical diagnostics or those with pacemakers, due to limitations in use and accuracy.
- Capacity:6L
- Connectivity:USB, Bluetooth
- Power:Rechargeable lithium battery
- Channels:6
Our verdict“This device makes the most sense for home users seeking straightforward ECG recording without the complexity or cost of medical-grade equipment.”
Fitbit Sense Health & Fitness Smartwatch with GPS, Bluetooth Call/Text, Heart Rate, SpO2, ECG, Skin Temperature & Stress Monitoring
The Fitbit Sense excels in combining comprehensive health metrics with everyday smartwatch features, making it ideal for users who want more than just ECG. Compared to the Withings ScanWatch 2, it offers a broader set of sensors, including SpO2 and stress monitoring, along with Bluetooth calls and notifications. Its long battery life of over 6 days supports continuous health tracking, but its bulkier design might be less appealing for those preferring a more discreet device. The subscription requirement for some features and regional restrictions on health metrics are notable tradeoffs. While it doesn’t match the elegance of hybrid watches, it provides a seamless experience for users focused on active health management alongside typical smartwatch functions.
Pros:- Comprehensive health sensors including ECG and SpO2
- Long battery life
- Water-resistant up to 50 meters
Cons:- Bulky design may be uncomfortable for small wrists
- Premium features require subscription
Best for: Active individuals seeking an all-in-one health and fitness smartwatch with ECG and stress monitoring.
Not ideal for: Users who prefer a lightweight, minimalist design or those with limited smartphone compatibility.
- Display Size:1.59 inches
- Water Resistance:50 meters
- Battery Life:6+ days
- Compatibility:iOS 12.2+ / Android 7.0+
Our verdict“This pick makes the most sense for fitness enthusiasts who want detailed health insights alongside smart notifications.”
Withings ScanWatch 2 – Hybrid Smartwatch, Heart Rate & Sleep Monitoring, Fitness & Cycle Tracker, GPS, 35-Day Battery, Compatible with Android & iOS
The Withings ScanWatch 2 offers a refined, hybrid design that combines traditional analog aesthetics with advanced health tracking, including ECG. Unlike the Fitbit Sense or Galaxy Watch 4, it emphasizes battery longevity—lasting up to 35 days—making it ideal for those who dislike frequent charging. Its hybrid form appeals to users seeking a subtle, stylish device that doesn’t compromise on health insights, covering sleep, activity, and cycle tracking. However, it requires the Withings app for full functionality and provides fewer customization options compared to fully digital smartwatches. Its limited app ecosystem and hybrid design may not suit tech enthusiasts wanting a fully digital experience, but for those prioritizing elegance and longevity, it’s a compelling choice.
Pros:- Very long battery life of up to 35 days
- Elegant hybrid design with analog look
- Comprehensive health tracking including ECG, sleep, and activity
Cons:- Requires the Withings app for full use
- Limited customization and app options
Best for: Professionals and style-conscious users who want extended battery life and discreet health monitoring.
Not ideal for: Tech-savvy users who seek a fully customizable digital smartwatch or extensive app integrations.
- Battery Life:35 days
- Display:Analog with digital health tracking
- Materials:Stainless steel, sapphire glass
- Compatibility:Android and iOS
Our verdict“This device is ideal for those who value style and battery longevity over full digital customization.”
Fitbit Sense 2 Advanced Health and Fitness Smartwatch – Blue Mist/Pale Gold
The Fitbit Sense 2 combines thorough health monitoring—including ECG, SpO2, and stress detection—with smart features like voice assistants and notifications, making it suitable for users who want a well-rounded device. Compared to the Samsung Galaxy Watch 4, it offers a similar suite of sensors but integrates Fitbit’s extensive health ecosystem, which can be a decisive benefit for dedicated Fitbit users. Its design is stylish yet functional, with over 6 days of battery life supporting long-term health tracking. However, some features require a Fitbit Premium subscription, and ECG accuracy may vary regionally. This smartwatch makes sense for users focused on managing stress and sleep alongside fitness, but not for those seeking a fully open app environment or medical-grade diagnostics.
Pros:- Includes ECG, SpO2, and stress monitoring
- Long battery life over 6 days
- Built-in GPS and smart notifications
Cons:- Some features require a paid subscription
- ECG and health features may be region-specific
Best for: Health-conscious users who want detailed metrics and smart features without sacrificing style or battery life.
Not ideal for: Users seeking a medical device or those who dislike subscription-based features and regional restrictions on ECG use.
- Color:Blue Mist/Pale Gold
- Stress Detection:All-day with cEDA
- ECG:Yes
- Sleep Tracking:Daily sleep stages and Sleep Score
- Water Resistance:50 meters
- Battery Life:6+ days
Our verdict“This pick is best for users wanting a feature-rich smartwatch that balances health metrics with everyday smart functions.”
Samsung Galaxy Watch 4 Classic 46mm Smartwatch – Black (Renewed)
The Samsung Galaxy Watch 4 Classic 46mm combines a sleek rotating bezel with robust health features, including ECG, sleep analysis, and GPS. It offers a more traditional watch aesthetic with advanced tracking capabilities, making it suitable for those who want both style and substance. Compared with the Withings ScanWatch 2, it provides a richer app ecosystem and more customizable options, though its battery life can be limited with heavy use—especially during extended GPS or ECG sessions. As a renewed product, potential buyers should consider lifespan and warranty concerns. This watch is best for users who value a premium design and comprehensive health features in a versatile package, but it may not suit those seeking the longest battery life or a minimalist look.
Pros:- Rotating bezel for intuitive navigation
- Comprehensive health and fitness features
- Stylish, durable build
Cons:- Battery life can be limited
- Renewed product may have less longevity
Best for: Style-conscious users who desire a full-featured smartwatch with ECG and extensive health tracking in a premium design.
Not ideal for: Those seeking maximum battery longevity or a budget-friendly, non-renewed device.
- Model:Galaxy Watch 4 Classic 46mm
- Color:Black
- Connectivity:Bluetooth
- Features:ECG, sleep tracking, GPS, fall detection
- Renewed:Yes
Our verdict“This watch is best suited for users who want a stylish, feature-rich smartwatch with ECG in a premium, traditional design.”
Fitbit Sense Health & Fitness Smartwatch with GPS, Heart Rate, SpO2, ECG, Skin Temperature & Stress Monitoring
The Fitbit Sense stands out for its comprehensive health tracking suite, including ECG, SpO2, skin temperature, and stress monitoring, making it a versatile choice for those prioritizing holistic health insights. Its long battery life of over 6 days and built-in GPS support extended activity tracking without frequent recharging. Compared to the Samsung Galaxy Watch 4, it offers slightly more health sensors, but it falls short in advanced fitness analytics like VO2 Max. The absence of an included warranty in the US and reliance on compatible smartphones for full features are notable tradeoffs. This model makes the most sense for health-conscious users who want detailed metrics without sacrificing battery longevity.
Pros:- Comprehensive health sensors including ECG, SpO2, and skin temperature
- Exceptional battery life of over 6 days
- Built-in GPS for outdoor activity tracking
- Supports notifications and music control
Cons:- International version may lack US warranty coverage
- Requires a compatible smartphone for full functionality
Best for: Individuals seeking a well-rounded health and fitness watch with extensive monitoring features and long battery life.
Not ideal for: Tech enthusiasts who prioritize advanced fitness metrics or seamless smartphone integration without compatibility concerns.
- Display Size:1.59 inches
- Sensors:ECG, stress sensing, skin temperature, SpO2, multi-path optical heart rate
- Connectivity:Bluetooth, GPS + GLONASS
- Water Resistance:50 meters
- Battery Life:6+ days
- Compatibility:iOS 12.2+, Android 7.0+
Our verdict“This pick is ideal for users who want extensive health features combined with long-lasting battery performance.”
Samsung Galaxy Watch 4 40mm Bluetooth Smartwatch with ECG Heart Monitor, Fitness & Sleep Tracking, GPS, Fall Detection, US Version
The Samsung Galaxy Watch 4 offers a robust suite of health features, including precise ECG monitoring, body composition analysis, and sleep tracking, making it the top choice for fitness enthusiasts. Its advanced sensors provide detailed insights that surpass those of the Fitbit Sense 2, especially in activity recognition and VO2 Max. However, the device’s battery life can be limited when utilizing its extensive tracking capabilities, and some features require a compatible Galaxy phone, which might restrict usability for iOS users. This watch is best suited for those who want deep fitness analytics integrated with smart features and are willing to manage its higher power consumption.
Pros:- Accurate ECG and heart monitoring for precise health insights
- Comprehensive sleep and activity tracking including VO2 Max
- Seamless phone notifications and music streaming
- Body composition analysis for fitness optimization
Cons:- Limited battery life with extensive use
- Some features require a Galaxy phone for full functionality
Best for: Fitness-focused users who want detailed health insights and seamless connectivity with Galaxy devices.
Not ideal for: iPhone users or those seeking longer battery life without extensive activity tracking.
- Model:SM-R860NZKAXAA
- Size:40mm
- Connectivity:Bluetooth, LTE, GPS
- Features:ECG Heart Monitor, Sleep Tracking, Body Composition Analysis, Fall Detection
Our verdict“Ideal for fitness buffs wanting detailed health analytics and integrated smart features, accepting some battery tradeoffs.”
Fitbit Sense 2 Health and Fitness Smartwatch – Lunar White/Platinum
The Fitbit Sense 2 emphasizes continuous health and stress management, offering ECG, SpO2, and all-day stress detection, making it perfect for users focused on mental and physical well-being. Its personalized stress scores and smart notifications support a holistic approach to health, while the built-in GPS aids outdoor activity tracking. Compared to the Galaxy Watch 4, it provides longer battery life and a more wellness-oriented experience, though it has fewer advanced fitness metrics. Its limited color options and occasional need for a compatible smartphone are minor inconveniences. This smartwatch suits users who want an all-day health companion with emphasis on stress and sleep management.
Pros:- Comprehensive health metrics including ECG, SpO2, and stress detection
- Long battery life of over 6 days
- Built-in GPS and extensive exercise modes
- Smart notifications and customizable watch faces
Cons:- Some features need a compatible smartphone
- Limited color options
Best for: Individuals prioritizing stress reduction, sleep quality, and overall wellness tracking over deep fitness analytics.
Not ideal for: Fitness enthusiasts seeking detailed activity metrics like VO2 Max or body composition analysis.
- Water Resistance:50 meters
- Battery Life:6+ days
- Exercise Modes:40+
- Connectivity:Bluetooth, Amazon Alexa, Google Wallet & Maps
Our verdict“A solid choice for users who want continuous health monitoring and stress management with minimal fuss.”
Fitbit Sense 2 Health and Fitness Smartwatch – Shadow Grey/Graphite
The Fitbit Sense 2 Shadow Grey/Graphite focuses on stress and sleep analysis, integrating ECG for atrial fibrillation screening and irregular heart rhythm notifications. Its all-day stress detection and sleep scoring features help users manage daily wellness, while the built-in GPS supports outdoor activities. Compared with the Lunar White version, this model offers similar core features but might appeal more to those who want a darker, less conspicuous design. Battery life remains strong at over 6 days, but some features depend on smartphone compatibility, and water resistance is limited to 50 meters. This watch is ideal for users who want continuous stress and sleep insights to support mental health and restful sleep.
Pros:- ECG for atrial fibrillation assessment
- All-day stress detection and sleep analysis
- Long-lasting battery of over 6 days
- Built-in GPS and extensive activity tracking
Cons:- Some features require a compatible smartphone
- Limited water resistance at 50 meters
Best for: People seeking a stress and sleep-focused health device with ECG capabilities for atrial fibrillation screening.
Not ideal for: Users looking for extensive fitness analytics like VO2 Max or activity recognition beyond basic monitoring.
- Stress detection:All-day with cEDA and Stress Management Score
- ECG app:Yes, for atrial fibrillation assessment
- Irregular heart rhythm notifications:Yes
- Sleep tracking:Sleep stages, Sleep Score, smart wake
- Water resistance:50 meters
- Battery life:6+ days
Our verdict“Best suited for users who want continuous stress, sleep, and heart rhythm monitoring for overall wellness management.”
How We Picked
The selection process focused on evaluating each watch’s ECG accuracy, overall health monitoring features, usability, build quality, and value for money. Devices were also assessed on their compatibility with major smartphone platforms, battery life, and ease of use for both beginners and advanced users. The ranking reflects a balance between performance, reliability, and affordability, ensuring that each option offers a distinct advantage for different types of buyers.| watches with ecg | Connectivity |
|---|---|
| EMAY 6L Portable ECG Monitor | | USB, Bluetooth |
| Fitbit Sense Health & Fitness | — |
| Withings ScanWatch 2 | — |
| Fitbit Sense 2 Advanced Health | — |
| Samsung Galaxy Watch 4 Classic | Bluetooth |
| Fitbit Sense Health & Fitness | Bluetooth, GPS + GLONASS |
| Samsung Galaxy Watch 4 40mm Bl | Bluetooth, LTE, GPS |
| Fitbit Sense 2 Health and Fitn | Bluetooth, Amazon Alexa, Google Wallet & Maps |
| Fitbit Sense 2 Health and Fitn | — |
Factors to Consider When Choosing Watches With Ecg
Choosing the right watch with ECG involves considering several key factors beyond just the feature list. Understanding your health priorities, device compatibility, usage patterns, and budget will help narrow down the options. Here are the main considerations to keep in mind when making your decision.ECG Accuracy and Medical Validation
While many watches claim ECG functionality, not all are equally precise or approved for medical use. Look for devices that have undergone clinical validation or FDA approval, especially if you plan to rely on the readings for health decisions. Accuracy can vary based on how the device fits your wrist and the quality of sensors, so reading user reviews on real-world performance is also valuable.
Battery Life and Usage Expectations
Battery longevity differs significantly across models, impacting convenience and daily use. Hybrid watches like Withings can last up to several weeks, while more feature-rich smartwatches might need daily charging. Consider how often you’re willing to charge your device, especially if you want continuous ECG monitoring without interruptions.
Compatibility and App Ecosystem
Ensure the watch you choose works seamlessly with your smartphone’s operating system. Some devices are optimized for iOS, while others perform better on Android. Additionally, evaluate the health app integration—robust, user-friendly apps can enhance your experience and make tracking easier over time.
Design, Comfort, and Wearability
Since you’ll wear your watch daily, comfort and style matter. Hybrid models like Withings blend traditional watch aesthetics with health features, appealing to those who prefer a classic look. Conversely, some smartwatches prioritize sporty or modern styles. Also, consider the size and weight to ensure long-term comfort.
Price and Value
Prices for watches with ECG vary widely, from budget-friendly options to premium devices with extensive health features. More expensive models typically offer better build quality, longer battery life, and more comprehensive health data. Balance your budget with the features that matter most—sometimes investing more can provide more reliable health insights and durability.
Frequently Asked Questions
Can I rely on ECG readings from a smartwatch for my health decisions?
While many watches with ECG provide valuable insights and are suitable for regular monitoring, they are not a substitute for professional medical advice. Devices with FDA approval or clinical validation are more reliable, but even then, ECG data should be interpreted alongside consultation with healthcare professionals. If you have existing heart conditions or symptoms, always seek direct medical guidance rather than relying solely on smartwatch readings.
How often should I use the ECG feature on my smartwatch?
The frequency of ECG use depends on your health needs. For some, daily or weekly checks might be sufficient for tracking general trends. Others with known conditions may need more frequent monitoring. Remember that frequent testing can drain your device’s battery faster, and some watches may prompt you to rest between readings for accuracy. Always follow recommended guidelines and consult your doctor about the appropriate monitoring schedule.
Are hybrid watches with ECG better than fully digital smartwatches?
Hybrid watches like Withings often excel in battery life and traditional aesthetics, making them appealing for daily wear without sacrificing health tracking. However, they may lack some advanced features found in fully digital smartwatches, such as real-time notifications or extensive app integrations. The choice depends on whether your priority is style and longevity or comprehensive digital features alongside ECG monitoring.
Will ECG features drain my smartwatch’s battery quickly?
ECG monitoring can consume battery, especially if used frequently. Hybrid models tend to have longer battery life because they rely less on continuous digital functions, whereas fully digital smartwatches with multiple sensors often require regular charging. To optimize battery life, use ECG features selectively and consider models that balance power efficiency with necessary health tracking capabilities.
What should I consider if I want a smartwatch compatible with both iOS and Android?
Many watches now support both platforms, but some perform better on one system than the other. Check the manufacturer’s specifications to confirm compatibility and review app store ratings for your device ecosystem. Compatibility ensures seamless syncing of health data, notifications, and updates, which is vital for a smooth experience. Investing in a widely supported model can prevent headaches and ensure you get the most out of your device.
Conclusion
The best overall choice for most users is the Fitbit Sense 2 due to its balanced combination of accurate ECG, comprehensive health features, and user-friendly design. If you want a device that offers long battery life and a traditional look, the Withings ScanWatch 2 makes a compelling case. For those on a budget, models like the Samsung Galaxy Watch 4 provide reliable ECG functionality without sacrificing core smartwatch features. Beginners or casual users should prioritize ease of use, while health-conscious users with specific medical needs might consider more validated devices or consulting a healthcare professional before relying solely on a smartwatch. Each of these options has a distinct role, making it easier to find a device aligned with your health goals and lifestyle.
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