heart rate accuracy

Multiple reviews describe heart-rate tracking as a standout, with lab praise, near-matched comparison results, and only minor warm-up variance.

Multiple reviewers found heart rate tracking reliable and accurate, with results close to reference devices and enough consistency for everyday workouts and health monitoring.

Heart rate tracking was generally strong for the price, with reviewers reporting good workout alignment and only small gaps versus pricier reference devices.

Heart-rate accuracy is generally very good, with only occasional lag or spikes noted during harder efforts.

Heart-rate accuracy is mixed: some reviewers saw notable issues, while others found results much stronger or close to chest-strap readings.