Best 2024 Smartwatches for ECG functionality

#1 Apple Watch Ultra 2
4.5

ECG was treated as part of Apple Watch’s serious health-safety suite, with reviewers connecting it to potentially life-saving monitoring.

Pros: battery life, voice assistant quality

Cons: value for money, mapping and navigation

#2 Apple Watch Series 10
4.3

ECG was treated as a mature health function that continued to work seamlessly rather than a major new upgrade.

Pros: charging speed, display quality

Cons: battery life, water resistance

#3 Polar Grit X2 Pro
4.0

ECG was viewed as useful for intentional HRV readings rather than full medical-grade detection.

Pros: GPS accuracy, mapping and navigation

Cons: value for money, companion app quality

#4 Samsung Galaxy Watch FE
4.0

The ECG app was treated as a meaningful differentiator against similarly priced competitors, though the reviews did not deeply test ECG accuracy.

Pros: smartwatch features, health tracking accuracy

Cons: value for money, software smoothness

#5 Samsung Galaxy Watch 7
3.5

ECG functionality is considered reliable where available, but reviewers noted it is tied to Samsung-phone requirements.

Pros: value for money, wellness insights

Cons: battery life, cross-platform compatibility

#6 Polar Vantage M3
3.0

ECG is useful as a sensor feature, but reviewers note it lacks diagnostic Afib support.

Pros: value for money, GPS accuracy

Cons: heart rate accuracy, companion app quality

#7 Samsung Galaxy Watch Ultra (2024)
3.0

ECG evidence was limited and lukewarm, with one reviewer finding it interesting but not personally necessary.

Pros: battery life, sleep tracking accuracy

Cons: wellness insights, style and design

#8 Coros Pace Pro
2.2

ECG was treated as limited because reviewers emphasized that it is not medically certified and should not be used as a medical device.

Pros: battery life, GPS accuracy

Cons: heart rate accuracy, smartwatch features

#9 Garmin Lily 2 Active
2.0

ECG is a clear limitation: a reviewer explicitly wished Garmin had included the hardware for ECG-related features.

Pros: battery life, GPS accuracy

Cons: onboard music storage, mapping and navigation

#10 Xiaomi Redmi Watch 5
2.0

ECG functionality is missing, and one reviewer treated the absent advanced sensors as nice-to-have but not expected at the price.

Pros: battery life, display quality

Cons: smartphone notifications, sleep tracking accuracy

#11 OnePlus Watch 2R
1.5

Reviewers repeatedly marked the lack of ECG as a notable omission, especially versus similarly priced or competing smartwatches.

Pros: battery life, value for money

Cons: companion app quality, charging convenience

#12 Garmin Lily 2
1.5

The absence of ECG is criticized as a gap, especially given the product’s price and female-focused positioning.

Pros: battery life, style and design

Cons: sleep tracking accuracy, workout tracking variety

#13 CMF Watch Pro 2
1.5

ECG support was treated as an absent advanced health feature, understandable at the price but still a limitation for serious health tracking.

Pros: value for money, battery life

Cons: GPS accuracy, sleep tracking accuracy

#14 Ticwatch Atlas
1.5

ECG support is a weakness because one reviewer specifically notes that the Atlas lacks an ECG sensor found on rival Wear OS watches.

Pros: battery life, display quality

Cons: operating system experience, voice assistant quality

#15 Ticwatch Pro 5 Enduro
1.5

ECG functionality was a weakness because reviewers noted the sensor is missing compared with some modern smartwatch rivals.

Pros: battery life, value for money

Cons: operating system experience, voice assistant quality

#16 Xiaomi Watch 2
1.5

ECG functionality was treated as a missing advanced feature, softened only by the watch’s lower price.

Pros: value for money, smartphone notifications

Cons: battery life, operating system experience