Best Garmin Smartwatches for ECG functionality

ECG functionality Decision Dashboard

Best for ECG functionality

Garmin Venu 4

4.5 attribute score

Highest scored product for this attribute based on supporting review evidence.

Safest pick

Garmin Forerunner 970

4.0 attribute score

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

Most evidence

Garmin Forerunner 570

9 supporting reviews

Has the broadest review evidence for this attribute.

Best overall product

Garmin Lily 2 Active

4.3 overall score

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

#1 Garmin Venu 4
4.5

The ECG feature received limited but positive opinionated evidence, with one reviewer saying the wrist measurement worked reliably.

Pros: battery life, GPS accuracy

Cons: value for money, voice assistant quality

#2 Garmin Forerunner 970
4.0

ECG was generally seen as a meaningful premium health addition, though reviewers stressed it is manual, sometimes a hassle to enable, and not continuous monitoring.

Pros: heart rate accuracy, GPS accuracy

Cons: battery life, value for money

#3 Garmin Venu 3
3.0

ECG evidence is mixed by review timing: some reviews found it unavailable or finicky, while later evidence notes FDA-approved on-device ECG readings.

Pros: battery life, GPS accuracy

Cons: smartwatch features, smartphone notifications

#4 Garmin Instinct 3
2.1

ECG functionality is a clear omission because reviewers criticize Garmin for using the older sensor platform without ECG support.

Pros: battery life, display quality

Cons: mapping and navigation, smartwatch features

#5 Garmin Vivoactive 5
2.0

ECG scored low because reviewers noted the watch lacks ECG eligibility or requires accepting the missing feature.

Pros: value for money, GPS accuracy

Cons: sleep tracking accuracy, recovery insights

#6 Garmin Epix Pro (Gen 2)
2.0

ECG functionality was treated as a drawback in the review evidence because the feature was built in but not available at the time of testing.

Pros: battery life, GPS accuracy

Cons: user interface, fit

#7 Garmin Forerunner 170
2.0

ECG is not available on the Forerunner 170, and reviewers note that buyers must move to a pricier Garmin to get it.

Pros: value for money, battery life

Cons: mapping and navigation, materials quality

#8 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

#9 Garmin Vivoactive 6
1.9

ECG is a clear limitation because reviewers repeatedly note that the Vivoactive 6 lacks ECG support compared with higher-end Garmin models.

Pros: battery life, comfort

Cons: heart rate accuracy, sleep tracking accuracy

#10 Garmin Venu X1
1.8

ECG was a repeated omission: multiple reviewers called its absence strange, frustrating, or a major gap at this price.

Pros: display quality, comfort

Cons: battery life, value for money

#11 Garmin Forerunner 570
1.6

ECG functionality was one of the most criticized omissions because the Gen 5 sensor made reviewers expect ECG at this price.

Pros: heart rate accuracy, GPS accuracy

Cons: value for money, mapping and navigation

#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 Garmin Venu Sq 2
1.5

Reviewers treated ECG as a missing capability rather than a strength, noting the Venu Sq 2 did not officially include ECG functionality.

Pros: battery life, display quality

Cons: smartwatch features, style and design

#14 Garmin Forerunner 965
1.1

ECG was a recurring missing feature and was called disappointing or expected by several reviewers.

Pros: battery life, GPS accuracy

Cons: smartwatch features, charging convenience

#15 Garmin fēnix 7X Pro
1.0

ECG functionality was a clear weakness because reviewers repeatedly noted the hardware was not enabled and had no guaranteed future.

Pros: battery life, mapping and navigation

Cons: value for money, score tracking

#16 Garmin Forerunner 265
1.0

Reviewers treated ECG as a clear missing health feature rather than a working capability.

Pros: battery life, value for money

Cons: mapping and navigation, smartwatch features