Science says: Garmin HR 99.1% accurate. But let’s talk about HRV

A Spanish laboratory wired 23 people to a hospital ECG and compared the readings. Resting pulse…

Garmin HRV Fails Again — Forerunner 265 Study

An academic study has compared the Garmin Forerunner 265's Health Snapshot against an ECG reference and…

62 Garmin Devices Failed to Track HRV Accurately Against a Clinical ECG

A new validation study tested Garmin HRV accuracy against a clinical ECG standard across a full…

“DC” – The Next Big Health Feature Coming to Garmin, Apple, and Google Watches in 2026?

Honor's "anti-sudden cardiac arrest screening" uses deceleration capacity (DC), a clinically validated metric that existing Apple…