Best 2025 Garmin Smartwatches for heart rate accuracy

#1

Heart rate accuracy was praised as brilliant and closely aligned with other premium watches.

#2

Heart-rate accuracy was widely praised, often compared favorably with chest straps, though gym and cycling edge cases remained.

#3

Heart-rate accuracy drew broad praise across reviews, with optical readings often matching straps closely; caveats focused on wrist-sensor limits in fast-changing or gym efforts.

#4

Reviewers generally found heart-rate tracking strong against chest straps, though one noted ordinary optical-sensor wobbles during some runs.

#5

Heart rate feedback was broadly praised for accuracy and faster updates, though one athletic test found strength training still benefits from a chest strap.

#6

Heart-rate accuracy was usually praised against chest straps, but one reviewer reported recurring treadmill-start inaccuracies.

#7

Heart-rate evidence was mostly positive across runs, workouts, and chest-strap comparisons, with a few reviewers noting minor dips, lag, or blips during intervals and gym work.

#8

Heart rate accuracy is mixed: steady efforts are generally good, but intervals, sudden spikes, and older Gen 4 limitations drew criticism.

#9

Heart rate tracking evidence was mixed: the built-in sensor enabled valuable tracking, but reviewers noted it used older Gen 4 hardware.

#10

Heart-rate evidence is mixed: several reviewers found it reliable for steady workouts, but many saw lag, dips, or weaker results during intervals, rapid changes, and weightlifting.