“Is the Heart Rate Monitor built in? It says that it tracks heart rate to keep you in the optimal zone - but is that just an estimate of heart rate or is there an actual heart rate monitor in the watch itself? How is this watch different from the TomTom - Runner Cardio GPS Watch with Heart Rate Monitor that is more than $100 more expensive and the TomTom - Special Edition Runner GPS Watch that is $50 cheaper? Thanks!”

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• No. You need a separate device to collect the heart rate information.

  Answered by WestCoastRunner 10 years ago

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• Hi, yes it does have a built in heart rate monitor, it is along the underside of the wrist, so it would capture your heart rate there. No chest strap is required.

  Answered by Veronica 10 years ago

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