Review of the Garmin Forerunner Series
"You can't improve what you can't measure in training and racing."
Garmin Forerunner 235
dedicated running watch
release date Oct 2015
wrist-based heart rate
VO2max estimate
aerobic training effect
★★★★
Garmin Forerunner 645
running & triathlon
release date Jan 2018
heart rate variability stress test
advanced running metrics
wrist-based heart rate
VO2max estimate
lactate threshold
aerobic training effect
anaerobic training effect
★★★★★
Garmin Forerunner 735XT
running & triathlon
release date May 2016
heart rate variability stress test
advanced running metrics
wrist-based heart rate
VO2max estimate
lactate threshold
aerobic training effect
★★★★½
Garmin Forerunner 935
running & triathlon
release date March 2017
heart rate variability stress test
advanced running metrics
wrist-based heart rate
VO2max estimate
lactate threshold
aerobic training effect
anaerobic training effect
★★★★★