Best Samsung Smartwatches for ECG functionality

ECG functionality Decision Dashboard

Safest pick

Samsung Galaxy Watch 8

4.4 attribute score

Balances the attribute score, supporting reviews, and overall product strength.

Most evidence

Samsung Galaxy Watch 6

4 supporting reviews

Has the broadest review evidence for this attribute.

Best overall product

Samsung Galaxy Watch Ultra 2

4.2 overall score

Strongest overall product among items with scored evidence for this attribute.

#1 Samsung Galaxy Watch Ultra (2025)
4.5

ECG is treated positively as part of Samsung Health Monitor’s useful health-tool set rather than as a deeply tested medical feature.

Pros: battery life, display quality

Cons: value for money, antioxidant index

#2 Samsung Galaxy Watch 8
4.4

ECG functionality was viewed as dependable and easy to use, with reviewers noting accessible readings and clear reports.

Pros: comfort, voice assistant quality

Cons: battery life, antioxidant index

#3 Samsung Galaxy Watch Ultra 2
4.0

ECG readings generally worked as expected and one comparison produced results similar to a dedicated Kardia device. It remains a wellness feature rather than a substitute for clinical diagnostic equipment.

Pros: battery life, comfort

Cons: value for money, charging speed

#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 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

#7 Samsung Galaxy Watch 6
2.9

ECG functionality was seen as potentially valuable but limited by Samsung-phone restrictions, confusing result presentation, and low personal usefulness for some reviewers.

Pros: software smoothness, comfort

Cons: battery life, GPS accuracy

#8 Samsung Galaxy Watch 9
2.0

ECG is useful as part of Samsung's broad health suite, but its Galaxy-phone requirement sharply limits access for users of other Android brands.

Pros: software smoothness, wellness insights

Cons: battery life, charging speed