Are Garmin watches the best for marathon and triathlon training?

Thanks to Garmin watches' extensive tracking features and athlete-oriented metrics, Garmin watches are a highly popular choice among marathon runners and triathletes, especially its Forerunner series. 

"I really like the data the Garmin connect provides from all my past activities, I can see the progress I've made over time and look back to previous training schedules, similar runs, Routes, etc," says two-time Iron Man competitor and avid marathon runner, Jeramie Pinter. 

Pinter, who completes one to two marathons a year, has been using his Garmin to train since 2011. He specifically utilizes Garmin's training mode for certain workouts like track and tempo runs, measuring his pace zones for the given workout.