Who cares that Forerunner 935 gives you rich data like running dynamics, wrist-based heart rate, training status, FTP and VO2 max? A dedicated athlete like you whos ready to beat yesterday. This premium GPS running/triathlon watch helps you fine-tune your training and recovery to be a better athlete. Avaialble as headunit only or as a Tri Bundle which includes a HRM Tri Monitor and Quick Release Kit Key Features: Premium GPS Running/Triathlon Watch with Wrist-based Heart Rate1 Offers advanced running and multisport features in a comfortable watch you can wear all day, and it only weighs 49 grams Provides elevation changes with a built-in barometer; altimeter and electronic compass help you keep your bearings Evaluates your training status to indicate if youre undertraining or overdoing it and offers additional performance monitoring features Provides advanced dynamics2for running, cycling and swimming, including ground contact time balance, stride length, vertical ratio and m