Best 2022 Smartwatches for heart rate accuracy

#1 Garmin Forerunner 255
4.6

Heart-rate accuracy drew broad praise across runs, rides, and workouts, with reviewers often finding it close to chest straps while still noting optical-sensor caveats.

Pros: GPS accuracy, battery life

Cons: smartphone notifications, mapping and navigation

#2 Garmin Forerunner 255S
4.5

Reviewers generally found heart-rate tracking strong for a wrist device, with several comparisons to straps or other watches; caveats centered on optical sensors and fast HIIT-style changes.

Pros: value for money, battery life

Cons: menu navigation, user interface

#3 Garmin Forerunner 955
4.3

Heart rate accuracy drew mostly positive evidence, especially for running and intervals, with some caveats for high-intensity or strength-style wrist strain.

Pros: GPS accuracy, battery life

Cons: onboard music storage, charging convenience

#4 Garmin Venu Sq 2
4.3

Heart-rate accuracy drew strong agreement, with many reviewers saying it closely matched chest straps or competing premium watches, while a few saw lag or high maximum readings.

Pros: battery life, display quality

Cons: smartwatch features, style and design

#5 Polar Pacer
4.1

Heart-rate accuracy is one of the stronger areas overall, with several reviewers praising reliable or excellent wrist data, though two noted spikes or weaker readings during testing.

Pros: value for money, workout tracking variety

Cons: GPS accuracy, mapping and navigation

#6 Polar Ignite 3
4.0

Heart-rate accuracy was mostly praised, with many reviewers saying it tracked well against straps, though a few reported mixed or questionable readings.

Pros: display quality, coaching features

Cons: value for money, battery life

#7 Garmin MARQ Gen 2
4.0

Heart-rate evidence was mostly positive for steady workouts and general use, with caveats around wrist-based lag, cycling strain, and short intervals.

Pros: display quality, battery life

Cons: value for money, smartphone notifications

#8 Polar Pacer Pro
3.8

Heart-rate results were mostly good for steady running and several reviewers saw close agreement with straps or other watches, but high-intensity sessions and cycling produced spikes, lag, or weaker results.

Pros: GPS accuracy, value for money

Cons: battery life, smartwatch features

#9 Coros Apex 2
3.5

Heart-rate accuracy was the most split sensor result: several reviewers saw good steady-state or workout responsiveness, while others saw lag, spikes, drops, or larger BPM differences.

Pros: value for money, GPS accuracy

Cons: mapping and navigation, onboard music storage

#10 Garmin Vivomove Sport
3.2

Heart-rate evidence split by use: casual and steady workouts were often close enough, but high-intensity, outdoor cycling, and some reviewer comparisons showed lag, overreading, or underreading.

Pros: value for money, style and design

Cons: battery life, display quality

#11 Suunto 9 Peak Pro
2.7

Heart rate accuracy was the most mixed tracking area, ranging from solid on steady workouts to delayed, spiky, or chest-strap-dependent during harder efforts.

Pros: battery life, GPS accuracy

Cons: value for money, mapping and navigation

#12 Tag Heuer Connected Calibre E4
2.6

Heart-rate evidence is split but mostly negative, with several reviewers reporting lag or 10-20 bpm gaps despite one positive sensor assessment.

Pros: style and design, battery life

Cons: value for money, heart rate accuracy

#13 Fitbit Sense 2
2.6

Heart-rate accuracy is a recurring concern, with multiple reviewers reporting lag, low readings, drops during intervals, or poor workout tracking, though a few saw decent normal-use performance.

Pros: battery life, stress tracking

Cons: value for money, GPS accuracy

#14 Fitbit Versa 4
2.4

Heart-rate accuracy was the clearest tracking weakness: several reviewers found lag, undercounts, overestimates, or unreliable high-intensity readings, with only one reviewer strongly satisfied.

Pros: battery life, GPS accuracy

Cons: value for money, heart rate accuracy