Premium GPS Running/Triathlon Watch with Wrist-based Heart Rate.

• 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.
• Provides advanced dynamics² for running, cycling and swimming, including ground contact time balance, stride length and more.