Garmin Forerunner 945 review: the watch of choice if you love to track | Mashable
Garmin is too expensive but heart rate accuracy is poor : r/GarminWatches
Garmin heart rate guide: Features, devices and accuracy - Wareable
Optical Heart Rate - can I improve the readings on a Garmin Forerunner 945 & 245M ? - YouTube
How accurate is the forerunner 945's heart rate data? My average seems quite low considering I'm far from an athlete. I've completed c25k and am working on the 10k program now :
Garmin heart rate guide: Features, devices and accuracy - Wareable
Garmin Forerunner 945 review: The ultimate watch for runners
Garmin Forerunner 945 review - Wareable
Garmin Forerunner 945 | Most Accurate Garmin GPS Watch | Distance, Pace, Heart Rate