13 Best Smartwatches With ECG Monitoring Under $200: Affordable Devices That Keep You Healthy

Among these smartwatches with ECG monitoring under 200, my best overall pick is the Samsung Galaxy Watch 4, which pairs ECG support with a broad smartwatch feature set; the Fitbit Sense is a strong alternative for health tracking, while the KardiaMobile 1-Lead is a focused option for recording an ECG without buying a smartwatch. The key tradeoff is that several listed watches track heart rate or blood oxygen but do not list ECG monitoring. ECG availability can also depend on phone compatibility, region, and companion apps, so a feature name alone is not enough. Read on for the full comparison and buying advice focused on separating genuine ECG options from general fitness trackers.

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Key Takeaways

• Samsung Galaxy Watch 4 is the clearest all-around smartwatch choice in this lineup for buyers seeking ECG alongside everyday smartwatch functions, but phone and regional compatibility need checking.
• Fitbit Sense is the health-focused alternative, while its international-version designation makes regional feature support a point to verify before buying.
• KardiaMobile is an ECG monitor, not a smartwatch. It may suit buyers who prioritize ECG recordings over wrist notifications, sports modes, or a watch display.
• Most of the low-profile generic watches listed do not specify ECG. Heart-rate, blood-oxygen, and blood-pressure claims should not be treated as proof of ECG capability.
• Model details matter more than broad feature counts: the renewed Galaxy Watch 4 Classic differs from the standard Watch 4 in condition and design, while the similarly named T7 models list no ECG feature.

Our Top Smartwatches With Ecg Monitoring Under 200 Picks

Smart Watch with 1.83″ HD Touch Screen, Bluetooth Call, IP68 Waterproof, 140+ Sport Modes, Heart Rate & Sleep Monitor		Best for Sport-Mode Variety	Display: 1.83-inch IPS, 240 × 284	Battery: 350mAh; 5–7 days use, up to 30 days standby	Water resistance: IP68	VIEW ON AMAZON	See Our Full Breakdown
Smart Watch for Men and Women with 1.43″ AMOLED Display, ECG, Heart Rate, SpO2, Bluetooth Calling, 80+ Sports Modes, IP68 Waterproof		Best Overall for ECG Features	Display: 1.43-inch AMOLED, 466 × 466	Health features: ECG, heart rate, SpO2, skin temperature, stress, sleep analysis, and HRV	Battery: 380mAh; 5–10 days typical use, up to 20 days standby	VIEW ON AMAZON	See Our Full Breakdown
KardiaMobile 1-Lead Personal EKG Monitor		Best for Dedicated EKG Readings	Leads: 1-lead	Recording time: 30 seconds	Detected rhythms: Normal sinus rhythm, atrial fibrillation, tachycardia, and bradycardia	VIEW ON AMAZON	See Our Full Breakdown
2026 Smart Watch for Men and Women, 1.96″ HD Fitness Tracker with Calls, IP68 Waterproof, Heart Rate Monitor, 110+ Sport Modes		Best for a Large Screen and Calls	Display: 1.96 inches, 385 × 472	Connectivity: Bluetooth 5.3	Health monitoring: Heart rate, blood oxygen, stress, and sleep	VIEW ON AMAZON	See Our Full Breakdown
DIVOAZBVO TG02 Smart Watch, 1.39″ HD Touchscreen with 120 Sports Modes, Bluetooth Call & Music Control, Heart Rate/Sleep Monitor, IP67 Waterproof, for iPhone & Android (Black)		Best Lightweight Everyday Pick	Display: 1.39-inch HD IPS touchscreen, 240 × 240	Weight: 40g	Sport modes: 120	VIEW ON AMAZON	See Our Full Breakdown
T7 Smart Watch with 1.83″ HD Touchscreen, Bluetooth Calling, Fitness & Sleep Tracking, IP67 Waterproof, for Android/iOS (Jet Black)		Best for Everyday Calling	Display: 1.83-inch HD touchscreen with 2.5D glass	Water resistance: IP67; suited to sweat, rain, and handwashing	Battery life: Up to 10 days	VIEW ON AMAZON	See Our Full Breakdown
Smart Watch Fitness Tracker with Heart Rate, Blood Oxygen, Blood Pressure, Sleep Monitoring, 120 Sports Modes, IP68 Waterproof for Android and iPhone		Best for Broad Activity Tracking	Display: 1.58-inch high-resolution display	Exercise modes: More than 120	Health tracking: Heart rate, blood oxygen, blood pressure, and sleep stages	VIEW ON AMAZON	See Our Full Breakdown
Smart Watches for Women and Men, 120 Sports Modes, 1.83-inch HD Display, Heart Rate & Sleep Monitor, IP67 Waterproof, Bluetooth Call & Music Control (Pink)		Best for a Large Screen and Simple Wellness	Display: 1.83-inch HD, 240 × 284 resolution	Sports modes: 120	Health tracking: Heart rate and sleep	VIEW ON AMAZON	See Our Full Breakdown
T7 Smart Watch for Women, Bluetooth Calling, 1.83″ HD Screen, 2 Bands		Best for Band Choice and Cycle Tracking	Display: 1.83-inch touchscreen with 2.5D glass	Included bands: 2	Health tracking: Heart rate, blood oxygen, stress, sleep, and menstrual cycle	VIEW ON AMAZON	See Our Full Breakdown
Samsung Galaxy Watch 4 Classic 42mm Smartwatch (Renewed, Black)		Best ECG Pick	Display: 1.2-inch Super AMOLED, 396 × 396 resolution	Case: Stainless steel with rotating bezel	Health sensors: ECG, blood pressure, and SpO2	VIEW ON AMAZON	See Our Full Breakdown
JYUAJOI Fitness Tracker with 24/7 Heart Rate, Blood Oxygen Monitor, Sleep Tracking, IP68 Waterproof Smart Watch with Step Counter		Best for Everyday Fitness Tracking	Display: 1.47-inch curved LED color screen	Water resistance: IP68	Sports modes: 24+	VIEW ON AMAZON	See Our Full Breakdown
Samsung Galaxy Watch 4 40mm Bluetooth Smartwatch – Black		Best for Samsung Phone Owners	Case size: 40mm	Connectivity: LTE, Bluetooth, GPS	Health features: ECG, body composition, and sleep tracking	VIEW ON AMAZON	See Our Full Breakdown
Fitbit Sense Health & Fitness Smartwatch (White/Gold, International Version)		Best for Broader Health Sensing	Brand and model: Fitbit Sense	Version and color: International version, White/Gold	Dimensions: 1.59 × 1.59 × 0.49 inches	VIEW ON AMAZON	See Our Full Breakdown

More Details on Our Top Picks

1. Smart Watch with 1.83″ HD Touch Screen, Bluetooth Call, IP68 Waterproof, 140+ Sport Modes, Heart Rate & Sleep Monitor

   

   Best for Sport-Mode Variety

   View on Amazon

   This is the most activity-focused option here if you want a broad menu of workouts rather than ECG tracking: it does not list ECG among its features, so it is not a fit for shoppers who require that function. Its 140+ sport modes outnumber the DIVOAZBVO TG02’s 120, while the larger 1.83-inch display gives workout information more room. The listed health tools cover heart rate and sleep, and the 5–7-day battery estimate is useful for reducing charging interruptions. Tradeoffs include phone-dependent GPS and no message replies from the watch; its step counter also starts recording after more than 20 steps. Choose it for straightforward activity tracking, not ECG readings or detailed medical monitoring.

   Pros:

   • 140+ sport modes offer more activity choices than the DIVOAZBVO TG02’s 120.
   • Large 1.83-inch display with customizable watch faces.
   • Listed battery life is 5–7 days of use, with up to 30 days on standby.
   • IP68 rating and compatibility with Android and iOS.

   Cons:

   • ECG monitoring is not listed, so it misses the roundup’s defining feature.
   • GPS depends on a connected smartphone.
   • Cannot reply to messages, and step counting has a 20-step threshold.

   Best for: Active buyers who want many selectable workout modes, a large screen, and basic heart-rate and sleep tracking, and do not need ECG.

   Not ideal for: Shoppers specifically seeking ECG monitoring, independent GPS, or the ability to reply to messages from their wrist.

   • Display:1.83-inch IPS, 240 × 284
   • Battery:350mAh; 5–7 days use, up to 30 days standby
   • Water resistance:IP68
   • Sport modes:140+
   • Compatibility:Android 5.0+ and iOS 9.0+
   • Materials:ABS case and fluoroelastomer band
   • Connectivity:Bluetooth and USB
   Our verdict

   “Pick this for its broad workout selection and larger display, but skip it if ECG is a requirement.”

   → See it on Amazon →

2. Smart Watch for Men and Women with 1.43″ AMOLED Display, ECG, Heart Rate, SpO2, Bluetooth Calling, 80+ Sports Modes, IP68 Waterproof

   

   Best Overall for ECG Features

   View on Amazon

   This is the clearest match for a roundup centered on ECG: it is the only smartwatch in this batch that explicitly lists ECG monitoring, alongside heart rate, SpO2, skin temperature, stress, sleep analysis, and HRV. That broader wellness set gives it a stronger health-tracking case than the first product, which lists heart-rate and sleep monitoring but no ECG. The 1.43-inch AMOLED screen has a sharper stated resolution than the larger-display options, though its smaller size may suit buyers who prefer a less expansive watch face. It also adds Bluetooth calling and 80+ sports modes. The key limit is that ECG and related measurements are described as wellness data, not medical use; battery life also varies with use. I’d choose it for feature breadth, not as a medical device.

   Pros:

   • ECG is explicitly listed alongside heart rate, SpO2, skin temperature, stress, sleep, and HRV.
   • 466 × 466 AMOLED display offers a detailed screen in a compact 1.43-inch size.
   • Bluetooth calling and notifications add wrist-based communication.
   • Magnetic charging and a stated 5–10 days of typical battery life.

   Cons:

   • Health measurements, including ECG, are for wellness purposes and not medical use.
   • Battery life varies significantly with usage.
   • 80+ sport modes are fewer than the 140+ on the first product.

   Best for: Buyers who want a smartwatch with explicitly listed ECG plus several other wellness measurements, calling, and a high-resolution AMOLED display.

   Not ideal for: Anyone who needs clinically validated medical monitoring or prefers a large watch screen and extensive workout-mode selection.

   • Display:1.43-inch AMOLED, 466 × 466
   • Health features:ECG, heart rate, SpO2, skin temperature, stress, sleep analysis, and HRV
   • Battery:380mAh; 5–10 days typical use, up to 20 days standby
   • Charging:Magnetic fast charging
   • Water resistance:IP68
   • Sport modes:80+
   • Compatibility:Android 6.0+ and iOS 10.0+
   • App and watch faces:H Band Lite; 200+ customizable watch faces
   Our verdict

   “Choose this if ECG and a broad set of wellness metrics matter more than medical-grade claims or a larger screen.”

   → See it on Amazon →

3. KardiaMobile 1-Lead Personal EKG Monitor

   

   Best for Dedicated EKG Readings

   View on Amazon

   KardiaMobile is not a smartwatch, so it cannot match the wrist notifications, workout modes, or continuous tracking offered by the ECG smartwatch in this batch. Its purpose is different: this pocket-sized device records a single-lead EKG in 30 seconds through a smartphone app, and it is described as FDA-cleared. It can identify several listed rhythm results and lets users email recordings to a doctor. Compared with the smartwatch’s broader wellness dashboard, this is a more focused tool for people who want a quick, shareable EKG recording rather than an all-day wearable. It needs no Bluetooth or Wi-Fi, but it does require a phone app, and advanced detections or doctor reviews require a paid subscription. It also does not detect heart attacks or replace regular care.

   Pros:

   • Records a single-lead EKG in 30 seconds.
   • FDA-cleared device with listed rhythm results including atrial fibrillation, tachycardia, and bradycardia.
   • Weighs less than an ounce and requires no Bluetooth, Wi-Fi, or cords.
   • Recordings can be emailed to a doctor.

   Cons:

   • It is a standalone EKG monitor, not a smartwatch or fitness tracker.
   • Advanced detections and doctor reviews require a paid KardiaCare subscription.
   • Does not detect heart attacks and is not a replacement for regular medical care.

   Best for: People who want a compact, dedicated EKG recorder for occasional rhythm checks and sharing recordings with a clinician.

   Not ideal for: Buyers seeking an everyday smartwatch with a screen, fitness tracking, notifications, or continuous wrist-based ECG monitoring.

   • Leads:1-lead
   • Recording time:30 seconds
   • Detected rhythms:Normal sinus rhythm, atrial fibrillation, tachycardia, and bradycardia
   • Weight:Less than 1 ounce
   • Battery:Replaceable CR2016; up to 2 years at 2–3 EKGs per day
   • Connectivity:No Bluetooth, Wi-Fi, cords, or PC required
   • Clearance and eligibility:FDA-cleared; HSA/FSA eligible
   Our verdict

   “Choose KardiaMobile for focused, shareable EKG recordings, not for smartwatch features or all-day activity tracking.”

   → See it on Amazon →

4. 2026 Smart Watch for Men and Women, 1.96″ HD Fitness Tracker with Calls, IP68 Waterproof, Heart Rate Monitor, 110+ Sport Modes

   

   Best for a Large Screen and Calls

   View on Amazon

   If a roomy display and wrist-based calls matter more than ECG, this model takes a different route from the ECG-equipped 1.43-inch AMOLED watch. Its 1.96-inch screen and Bluetooth 5.3 calling make notifications and calls easier to access on the watch, while 110+ sport modes provide a broad choice of activities. It also lists heart-rate, blood-oxygen, stress, and sleep monitoring, but does not list ECG, so it cannot serve buyers who came specifically for electrocardiogram readings. The companion GloryFit app is needed for full functionality, which adds a setup dependency. Another practical caveat: despite its IP68 listing, the product description says it is not suitable for swimming or diving. I’d pick it over the first model for its larger screen and newer Bluetooth calling, not for ECG.

   Pros:

   • Large 1.96-inch display with 200+ watch faces and photo wallpapers.
   • Bluetooth 5.3 supports making and answering calls.
   • Lists heart-rate, blood-oxygen, stress, and sleep monitoring.
   • 110+ sport modes and up to 7 days of stated use.

   Cons:

   • ECG monitoring is not listed.
   • Requires the GloryFit app for full functionality.
   • The description says its IP68 rating is not suitable for swimming or diving.

   Best for: Buyers who prioritize a large watch face, Bluetooth calling, and varied activity tracking over ECG.

   Not ideal for: ECG-seeking shoppers, swimmers, or people who want full watch functionality without a companion app.

   • Display:1.96 inches, 385 × 472
   • Connectivity:Bluetooth 5.3
   • Health monitoring:Heart rate, blood oxygen, stress, and sleep
   • Sport modes:110+
   • Watch faces:200+ via GloryFit app
   • Battery:Up to 7 days use; approximately 30 days standby
   • Charging:Approximately 2 hours
   • Compatibility:Android and iOS
   Our verdict

   “Pick this for its large display and calling features, but not if ECG or swim tracking is essential.”

   → See it on Amazon →

5. DIVOAZBVO TG02 Smart Watch, 1.39″ HD Touchscreen with 120 Sports Modes, Bluetooth Call & Music Control, Heart Rate/Sleep Monitor, IP67 Waterproof, for iPhone & Android (Black)

   

   Best Lightweight Everyday Pick

   View on Amazon

   The DIVOAZBVO TG02 is a straightforward everyday tracker, not an ECG watch: its listed health features are heart rate, sleep, and female health tracking, with no ECG monitoring specified. Against the first product’s 140+ sport modes, its 120 modes are fewer, but it still offers a generous activity menu and adds Bluetooth calling, music control, and an AI voice assistant. Its 40g weight and round 1.39-inch display may appeal to buyers who find larger rectangular watches cumbersome. The compromises are meaningful for water-based workouts: IP67 is a lower listed rating than the IP68 models in this group, and its GPS relies on a smartphone. The step count also appears only after 20 steps. I’d choose it for light daily tracking and calls, not ECG or independent navigation.

   Pros:

   • Lightweight 40g design with a round 1.39-inch touchscreen.
   • 120 sport modes, plus heart-rate, sleep, and female health tracking.
   • Bluetooth calling, music control, and AI voice assistant.
   • Stated battery life of 5–7 days of active use and up to 30 days standby.

   Cons:

   • ECG monitoring is not listed.
   • IP67 water resistance is a step below the IP68 rating on several alternatives.
   • GPS depends on a smartphone, and step counting starts after 20 steps.

   Best for: Buyers who want a lightweight round watch for everyday calls, basic wellness tracking, and a broad but not maximum-size set of sport modes.

   Not ideal for: People who require ECG, built-in GPS, or stronger water resistance for regular swimming.

   • Display:1.39-inch HD IPS touchscreen, 240 × 240
   • Weight:40g
   • Sport modes:120
   • Battery:350mAh; 5–7 days active use, up to 30 days standby
   • Water resistance:IP67, up to 1 meter
   • Health metrics:Heart rate, sleep, and female health tracking
   • Compatibility and app:iOS 9.0+ and Android 5.0+; Da Fit
   • GPS:Via connected smartphone
   Our verdict

   “Choose the TG02 for a lighter daily watch with calling and basic tracking, but skip it if ECG or built-in GPS is a must.”

   → See it on Amazon →

6. T7 Smart Watch with 1.83″ HD Touchscreen, Bluetooth Calling, Fitness & Sleep Tracking, IP67 Waterproof, for Android/iOS (Jet Black)

   

   Best for Everyday Calling

   View on Amazon

   The T7’s strongest case is wrist-based Bluetooth calling paired with a large 1.83-inch screen and health tracking for everyday reference. Its heart-rate, blood-oxygen, stress, and sleep features cover more categories than the pink 120-mode watch in this lineup, which lists heart rate and sleep monitoring but not blood oxygen or stress. The T7 also offers up to 10 days of battery life, reducing charging interruptions compared with the Samsung Galaxy Watch 4 Classic, whose battery is listed for up to 40 hours but which adds ECG monitoring. That distinction matters here: the T7 does not list ECG, so it is not a match for buyers specifically seeking electrocardiogram readings. Its IP67 rating is for sweat, rain, and handwashing—not swimming—and its health readings should not be treated as a medical diagnosis.

   Pros:

   • Bluetooth calling with a built-in speaker and microphone
   • Tracks heart rate, blood oxygen, stress, and sleep
   • Battery life listed at up to 10 days, with approximately 2-hour charging
   • Works with iOS and Android and offers more than 100 customizable watch faces

   Cons:

   • No ECG monitoring is listed, so it misses the roundup’s key health feature
   • IP67 protection is not intended for swimming or hot showers
   • Health features are wellness tracking, not a substitute for medical evaluation

   Best for: Android or iPhone users who want wrist calling, broad everyday wellness tracking, and infrequent charging, without needing ECG.

   Not ideal for: Buyers who need ECG monitoring, want to swim with their watch, or expect clinical-grade health measurements.

   • Display:1.83-inch HD touchscreen with 2.5D glass
   • Water resistance:IP67; suited to sweat, rain, and handwashing
   • Battery life:Up to 10 days
   • Charging time:Approximately 2 hours
   • Compatibility:iOS and Android
   • Health tracking:Heart rate, blood oxygen, stress, and sleep
   • Connectivity:Bluetooth calling and notifications
   • Watch faces:More than 100 customizable options; photo upload supported
   Our verdict

   “Choose the T7 for long-lasting everyday calling and wellness tracking, but pick the Samsung Galaxy Watch 4 Classic if ECG is your priority.”

   → See it on Amazon →

7. Smart Watch Fitness Tracker with Heart Rate, Blood Oxygen, Blood Pressure, Sleep Monitoring, 120 Sports Modes, IP68 Waterproof for Android and iPhone

   

   Best for Broad Activity Tracking

   View on Amazon

   This tracker suits buyers who want many workout profiles and several health metrics on one wrist, with 120-plus exercise modes and heart-rate, blood-oxygen, blood-pressure, and sleep tracking. Compared with the T7 Smart Watch, it adds blood-pressure tracking and an IP68 rating, while the T7 supplies clearly stated battery life and Bluetooth calling. The product information does not list ECG, though, so blood-pressure tracking is not a substitute for ECG for shoppers choosing specifically for electrocardiogram monitoring. The 1.58-inch display is smaller than the T7’s 1.83-inch screen, but could suit someone who prefers a less expansive watch face. Battery life is not specified, and some functions depend on the phone app, making this a less predictable pick for people who want simple setup and clear charging expectations.

   Pros:

   • More than 120 exercise modes for varied activity tracking
   • Lists heart-rate, blood-oxygen, blood-pressure, and sleep monitoring
   • IP68 water-resistance rating
   • Compatible with Android and iOS and has a replaceable, washable strap

   Cons:

   • ECG monitoring is not listed
   • Battery life is not specified
   • Some features require app connectivity, which may add setup and phone dependence

   Best for: Activity-focused Android and iPhone users who want many sport modes plus blood-pressure and blood-oxygen tracking in one wearable.

   Not ideal for: ECG seekers, smartwatch beginners who want a simpler interface, and buyers who need a stated battery-life estimate.

   • Display:1.58-inch high-resolution display
   • Exercise modes:More than 120
   • Health tracking:Heart rate, blood oxygen, blood pressure, and sleep stages
   • Water resistance:IP68
   • Compatibility:Android 4.4 or later and iOS 8.4 or later
   • Strap:Replaceable and washable
   • Connected features:Call alerts, message notifications, weather, remote camera, music control, and GPS connectivity
   Our verdict

   “Pick this tracker for varied workouts and multiple wellness metrics, not for ECG or predictable battery planning.”

   → See it on Amazon →

8. Smart Watches for Women and Men, 120 Sports Modes, 1.83-inch HD Display, Heart Rate & Sleep Monitor, IP67 Waterproof, Bluetooth Call & Music Control (Pink)

   

   Best for a Large Screen and Simple Wellness

   View on Amazon

   The pink model makes its appeal easy to understand: a large 1.83-inch display, Bluetooth calling and music control, and a wide selection of 120 sports modes. Its stated 5–7 days of active battery life gives buyers a more concrete expectation than the tracker with 120-plus modes, whose battery information is not specified. Against the T7, however, this watch has a narrower listed health set: it names heart-rate and sleep monitoring, while the T7 also includes blood-oxygen and stress tracking. Neither product lists ECG, so this is not the right choice for a shopper who requires electrocardiogram monitoring. The step counter reportedly begins recording only after more than 20 steps, and the IP67 rating is not suitable for swimming. Choose it for a broad screen and everyday controls rather than advanced health measurement.

   Pros:

   • 1.83-inch HD display with customizable watch faces
   • 120 sports modes for a range of activities
   • Bluetooth calling and music control
   • Battery life listed at 5–7 days of active use and up to 30 days on standby

   Cons:

   • ECG, blood-oxygen, and stress monitoring are not listed
   • IP67 protection is not intended for swimming or hot showers
   • Step recording starts only after exceeding 20 steps

   Best for: Buyers who want a pink, large-screen smartwatch for calls, music control, basic wellness tracking, and varied workouts.

   Not ideal for: People seeking ECG or more detailed health tracking, swimmers, and users who need step counts to register from the first few steps.

   • Display:1.83-inch HD, 240 × 284 resolution
   • Sports modes:120
   • Health tracking:Heart rate and sleep
   • Water resistance:IP67
   • Battery capacity:350 mAh
   • Battery life:5–7 days active use; up to 30 days standby
   • Compatibility:iPhone with iOS 9.0 or later; Android 5.0 or later
   Our verdict

   “Choose this watch for its large display and everyday call and music controls, but look to a different model if ECG or deeper health tracking is required.”

   → See it on Amazon →

9. T7 Smart Watch for Women, Bluetooth Calling, 1.83″ HD Screen, 2 Bands

   

   Best for Band Choice and Cycle Tracking

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   This T7 is a close relative of the Jet Black T7, but its two included bands and explicit menstrual-cycle tracking give it a more tailored role. It keeps the same practical combination of Bluetooth calling, a 1.83-inch screen, and up to 10 days of stated battery life, while monitoring heart rate, blood oxygen, stress, sleep, and menstrual cycles. Compared with the pink 120-sports-mode watch, it lists a broader set of wellness measures and Bluetooth calling; the pink model instead specifies its sports count and battery capacity. ECG is not listed on this T7, so neither its cycle tracking nor its other health features fills the ECG requirement. Its IP67 rating also limits water exposure to sweat, rain, and handwashing. Buyers should choose it for the supplied band flexibility and daily wellness tools, not for swimming or medical-grade heart monitoring.

   Pros:

   • Includes two bands for a choice of everyday looks
   • Tracks heart rate, blood oxygen, stress, sleep, and menstrual cycles
   • Bluetooth calling and smart notifications
   • Battery life listed at up to 10 days with approximately 2-hour charging

   Cons:

   • ECG monitoring is not listed
   • IP67 water resistance is not suitable for swimming or hot showers
   • Full functionality depends on a compatible smartphone

   Best for: iOS and Android users who want menstrual-cycle tracking, wrist calls, and a choice of two bands in one package.

   Not ideal for: Shoppers who need ECG, want a swim-ready watch, or prefer a wearable that can function fully without a paired phone.

   • Display:1.83-inch touchscreen with 2.5D glass
   • Included bands:2
   • Health tracking:Heart rate, blood oxygen, stress, sleep, and menstrual cycle
   • Water resistance:IP67; suited to sweat, rain, and handwashing
   • Battery life:Up to 10 days
   • Charging time:Approximately 2 hours
   • Compatibility:iOS and Android
   • Connectivity:Bluetooth calling and smart notifications
   Our verdict

   “Choose this T7 for cycle tracking and two-band flexibility, while ECG-focused buyers should choose a model that explicitly supports ECG.”

   → See it on Amazon →

10. Samsung Galaxy Watch 4 Classic 42mm Smartwatch (Renewed, Black)

    

    Best ECG Pick

    View on Amazon

    Among these five products, the Galaxy Watch 4 Classic is the clear choice for buyers who want ECG monitoring: the other four listings do not specify ECG. It pairs that capability with blood-pressure and SpO2 tracking, GPS, fall detection, and a rotating bezel that gives users a physical way to move through the interface. Compared with the T7 watches, it offers the ECG feature and 5 ATM/IP68 water resistance, but gives up their stated battery life of up to 10 days; Samsung lists up to 40 hours. Its Super AMOLED screen is also smaller at 1.2 inches, and the watch is Android-only, unlike the T7 models and pink watch. This unit is renewed, with a 90-day limited warranty, so its condition may show prior use. ECG availability can depend on device, app, and regional compatibility.

    Pros:

    • ECG monitoring alongside blood-pressure and SpO2 tracking
    • GPS and fall detection add useful safety and activity tools
    • Rotating bezel and Super AMOLED display
    • 5 ATM/IP68 water resistance and MIL-STD-810G compliance

    Cons:

    • Not compatible with iOS
    • Battery life is listed at up to 40 hours
    • Renewed condition may include signs of previous use, with a 90-day limited warranty

    Best for: Android users who prioritize ECG, GPS, and more advanced health tools over long battery life or cross-platform compatibility.

    Not ideal for: iPhone owners, buyers who want several days between charges, or shoppers who prefer a new device over a renewed unit.

    • Display:1.2-inch Super AMOLED, 396 × 396 resolution
    • Case:Stainless steel with rotating bezel
    • Health sensors:ECG, blood pressure, and SpO2
    • Water resistance:5 ATM/IP68; rated to 50 meters
    • Battery:247 mAh; up to 40 hours
    • Connectivity:Bluetooth, Wi-Fi, and 4G LTE (eSIM)
    • Compatibility:Android 6.0 and above; not compatible with iOS
    • Condition and warranty:Renewed; 90-day limited warranty
    Our verdict

    “Choose the renewed Galaxy Watch 4 Classic if ECG on an Android-compatible watch is your priority and you accept frequent charging and renewed condition.”

    → See it on Amazon →

11. JYUAJOI Fitness Tracker with 24/7 Heart Rate, Blood Oxygen Monitor, Sleep Tracking, IP68 Waterproof Smart Watch with Step Counter

    

    Best for Everyday Fitness Tracking

    View on Amazon

    The JYUAJOI is a sensible pick for buyers who want routine wellness and activity tracking, but the listed features do not include ECG monitoring. That makes it a weaker match for this roundup’s ECG-focused purpose than the Samsung Galaxy Watch 4 or Fitbit Sense, both of which list ECG. Its strengths are more basic: continuous heart-rate and blood-oxygen monitoring, automatic sleep tracking, and 24+ sports modes cover everyday activity without a more involved health-watch feature set. The 5–7 day battery life and IP68 rating may suit people who prefer fewer charges and want to wear a tracker while swimming. The tradeoff is clear: you give up ECG, and full functionality depends on a compatible smartphone. Choose it for general tracking, not ECG readings.

    Pros:

    • Tracks heart rate, blood oxygen, and sleep
    • 5–7 day stated battery life with a 2-hour charge
    • IP68 water resistance and 24+ sports modes
    • 200+ customizable watch faces, including personal photos

    Cons:

    • ECG monitoring is not listed, unlike on the Samsung Galaxy Watch 4 and Fitbit Sense
    • Full functionality requires a smartphone connection
    • Not compatible with PCs, iPads, or tablets

    Best for: Buyers who want a straightforward tracker for steps, sleep, heart rate, and swimming, and do not need ECG monitoring.

    Not ideal for: Anyone specifically shopping for an ECG-capable smartwatch, or anyone who needs the watch to work independently of a compatible smartphone.

    • Display:1.47-inch curved LED color screen
    • Water resistance:IP68
    • Sports modes:24+
    • Watch faces:200+
    • Battery life:5–7 days
    • Charging time:2 hours
    • Connectivity:Bluetooth 5.0
    • Compatibility:Android 10.0+ and iOS 10.0+ smartphones; not compatible with PCs, iPads, or tablets
    Our verdict

    “Choose the JYUAJOI for basic fitness tracking and longer battery life, but skip it if ECG is a must-have.”

    → See it on Amazon →

12. Samsung Galaxy Watch 4 40mm Bluetooth Smartwatch – Black

    

    Best for Samsung Phone Owners

    View on Amazon

    The Samsung Galaxy Watch 4 earns its place here by pairing ECG monitoring with body-composition measurements, sleep tracking, and auto workout detection. Compared with the Fitbit Sense, it adds body-composition analysis and Google services, while the Fitbit lists built-in GPS and skin-temperature sensing. The 40mm case is a more compact choice than larger watch formats, and Bluetooth connectivity supports calls, texts, and music when paired with a phone. Its main limitation is compatibility: some health features require a compatible Samsung phone, so the ECG function may not be equally accessible to every Android user. The supplied details also note that the ECG app is not intended for people under 22 or those with certain conditions. I’d rank it ahead of general trackers such as the JYUAJOI for ECG capability, but only for buyers whose phone setup supports its health tools.

    Pros:

    • ECG monitoring plus body-composition analysis
    • Advanced sleep tracking and auto workout tracking
    • Google services integration
    • Compact 40mm size with interchangeable bands

    Cons:

    • Some health features require a compatible Samsung phone
    • ECG app has stated age and health-condition limitations
    • Listed product details do not specify battery life

    Best for: Samsung phone owners who want ECG alongside body-composition data, sleep tracking, and connected smartwatch features.

    Not ideal for: iPhone users and buyers without a compatible Samsung phone, since some health features may not be available to them.

    • Case size:40mm
    • Connectivity:LTE, Bluetooth, GPS
    • Health features:ECG, body composition, and sleep tracking
    • Workout features:Auto workout tracking and run coaching
    • Smart features:Calls, texts, music, and Google services
    • Color:Black
    Our verdict

    “Pick the Galaxy Watch 4 if you own a compatible Samsung phone and want ECG plus broader health tools in a compact watch.”

    → See it on Amazon →

13. Fitbit Sense Health & Fitness Smartwatch (White/Gold, International Version)

    

    Best for Broader Health Sensing

    View on Amazon

    The Fitbit Sense is the more health-sensor-focused choice between it and the Samsung Galaxy Watch 4: both list ECG monitoring, but the Sense adds skin-temperature and stress sensing, along with heart-rate and SpO2 tracking. Built-in GPS and GLONASS also let outdoor exercisers record location without relying on a phone for that function. Its stated battery life of up to 6+ days and 50-meter water resistance support regular wear, while compatibility with iOS and Android gives it a broader phone reach than Samsung’s phone-dependent health features. The tradeoffs are its reliance on the Fitbit app and a Google account for full functionality, plus possible regional limits tied to the international version. Compared with the JYUAJOI, it offers ECG and more advanced health sensors; compared with the Galaxy Watch 4, it lacks listed body-composition analysis.

    Pros:

    • ECG, SpO2, stress, and skin-temperature tracking
    • Built-in GPS and GLONASS
    • Works with iOS and Android
    • Water resistance up to 50 meters and up to 6+ days of stated battery life

    Cons:

    • Full functionality requires a Google account and Fitbit app
    • International version may have limited feature compatibility in some regions
    • Does not list the Galaxy Watch 4’s body-composition analysis

    Best for: iOS or Android users seeking ECG, stress and skin-temperature sensing, and built-in GPS in one health-focused smartwatch.

    Not ideal for: Buyers who want body-composition measurements, prefer not to use a Google account and Fitbit app, or need confidence that every feature works in their region.

    • Brand and model:Fitbit Sense
    • Version and color:International version, White/Gold
    • Dimensions:1.59 × 1.59 × 0.49 inches
    • Battery life:Up to 6+ days
    • Water resistance:50 meters (IP68)
    • Connectivity and positioning:Bluetooth, GPS, and GLONASS
    • Compatibility:iOS 12.2+ and Android 7.0+
    • Metrics:Heart rate, SpO2, stress, skin temperature, and ECG
    • Band material:Silicone; small and large bands included
    Our verdict

    “Choose the Fitbit Sense if you want ECG with broader health sensing and built-in GPS across iOS or Android.”

    → See it on Amazon →

How We Picked

I ranked these products by how directly they meet the request for ECG monitoring, then weighed smartwatch usefulness, health features, phone compatibility, and the clarity of the supplied product details. A listed ECG function counts for more than a long sports-mode list or a large display, because those features do not provide an ECG recording. I also treated a dedicated ECG device separately from a wristwatch: it may serve a narrower health-recording need, but it cannot replace a smartwatch for daily use.

The named Samsung Galaxy Watch 4 models and Fitbit Sense stand apart from the generic trackers because their product descriptions identify recognizable smartwatch lines associated with ECG features; actual availability still varies by model, region, software, and phone. The KardiaMobile earns consideration for its specific ECG purpose, not as a watch. The remaining listings describe heart-rate, sleep, blood-oxygen, or activity tracking without specifying ECG, so they rank behind ECG-capable candidates for this particular search. I avoid treating unverified health claims as equivalent to a supported ECG feature.

Factors to Consider When Choosing Smartwatches With Ecg Monitoring Under 200

When ECG is the reason for buying, I would verify the feature before comparing screen size or sports modes. The main traps are assuming that any health sensor means ECG, overlooking phone and regional restrictions, and treating a consumer recording as a medical diagnosis.

Confirm That the Exact Model Records an ECG

Product titles often place heart rate, blood oxygen, sleep, blood pressure, and ECG together, but these are different measurements. Look for an explicit ECG or EKG function in the exact model’s documentation and companion app, rather than inferring it from a broad health-tracking list. Check that the feature applies to the specific size, generation, and version you plan to buy. Generic listings in this roundup describe several health sensors without naming ECG, so they should not be chosen for ECG on the assumption that a sensor will provide it. If the listing is unclear, treat ECG support as unconfirmed until the manufacturer’s documentation says otherwise.

Check Phone, Region, and App Requirements

An ECG feature can rely on a paired phone, a manufacturer account, an app, and regional authorization. A watch that supports ECG with one phone ecosystem may offer reduced functionality with another, so check compatibility before choosing based on the watch alone. International versions can have different feature availability from models sold for a local market. Also confirm whether the app can be installed and used where you live and whether it requires a particular phone or operating-system version. These checks can matter more than display quality if ECG is the main purpose of the purchase.

Decide Between a Watch and a Dedicated ECG Device

A smartwatch makes sense when you want ECG alongside notifications, activity tracking, and a wearable you can keep on throughout the day. A dedicated device such as KardiaMobile serves a narrower purpose and may appeal to someone who wants ECG recordings without smartwatch features. It is not a substitute for a watch’s display, exercise tracking, or wrist-based convenience. Think about how often you expect to record and whether you want other daily functions on the same device. Choosing the format first can prevent paying for features you will not use—or expecting a focused monitor to behave like a smartwatch.

Treat ECG as a Recording, Not a Diagnosis

Consumer ECG functions can provide a recording or flag certain patterns, but they do not replace clinical evaluation. A normal-looking result cannot rule out every heart problem, and a reading may be inconclusive or affected by movement and contact. Follow the manufacturer’s instructions for taking a recording and ask a clinician how to interpret results in the context of your health. Seek urgent medical help for serious symptoms rather than waiting for a watch reading. Buyers should choose a device for useful tracking and communication with a care team, not as a substitute for medical advice.

Prioritize Practical Wearability Over Spec Counts

Once ECG eligibility is confirmed, consider whether the watch is comfortable enough to wear, simple to operate, and suitable for your routine. A bright display, call handling, water resistance, and sports profiles matter differently depending on whether you want a daily companion, a workout tracker, or occasional health recordings. Large numbers of sport modes do not improve ECG quality, and a long feature list can obscure the one capability you came to buy. Check strap fit, charging habits, app setup, and the return policy before choosing. Paying more makes sense when it buys a feature you will use, not simply a longer list of modes.

Frequently Asked Questions

Do all the watches in this roundup have ECG?

No. Several listings specify heart-rate, sleep, blood-oxygen, or activity tracking but do not state that they record an ECG. The Samsung Galaxy Watch 4 models and Fitbit Sense are the smartwatch candidates here associated with ECG functionality, while KardiaMobile is a dedicated ECG device rather than a watch. Even for those products, check the exact model, phone, app, and regional support before purchase. Do not treat a heart-rate sensor as an ECG feature.

Will a Samsung Galaxy Watch 4 ECG work with any phone?

Do not assume universal access. ECG availability can depend on the paired phone, the companion app, software, and the country where the watch is used. Check Samsung’s current compatibility guidance for your specific phone and market before choosing either the standard Watch 4 or the Classic. If you use a non-Samsung Android phone or an iPhone, verify feature access directly rather than relying on general watch compatibility. The watch may still offer other functions even when a particular health feature is unavailable.

Should I choose the Fitbit Sense or KardiaMobile for ECG?

Choose the Fitbit Sense if you want ECG as part of a broader smartwatch and health-tracking experience. KardiaMobile is better suited to someone whose priority is taking ECG recordings and who does not need a watch display, calls, or activity features. The two serve different jobs, so they are not direct substitutes. With the Sense’s international-version listing, confirm ECG availability in your region and with your phone. If you are unsure which form fits your routine, decide whether daily smartwatch use or focused ECG recording matters more.

Can a smartwatch ECG tell me whether I have a heart condition?

No consumer smartwatch ECG should be treated as a diagnosis or a replacement for a clinician. It may record electrical activity or flag certain patterns, but it cannot identify every condition and readings can be inconclusive. Share relevant recordings with a healthcare professional if you have questions about them. Do not delay care for serious symptoms while trying to obtain a watch reading. Follow the device’s instructions and any medical guidance you receive.

What should I verify before buying a renewed or international smartwatch?

Check the exact model number, included accessories, return terms, and whether the seller’s description matches the device you expect. For a renewed watch, ask about battery condition and warranty coverage, since condition can affect day-to-day usefulness. For an international version, confirm that the ECG feature, companion app, and phone pairing work in your country. Also check software support and whether the device can be set up with your existing account. These checks reduce the risk of buying a watch whose headline feature is unavailable in your setup.

Conclusion

For most buyers who want ECG in a full smartwatch, I would start with the Samsung Galaxy Watch 4, after confirming phone and regional support. The standard Watch 4 is my best overall recommendation; the renewed Galaxy Watch 4 Classic is a design-led alternative for buyers comfortable checking renewed condition and warranty details. My best health-focused alternative is the Fitbit Sense, especially for someone who also wants broader wellness tracking and has verified international feature support. For beginners who want a focused ECG recording rather than a general-purpose watch, KardiaMobile is the simpler category fit. The generic watches may appeal to buyers focused on calls, sports modes, or basic tracking, but I would skip them if ECG is a firm requirement unless the exact model’s documentation confirms it.