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The watch has a built-in heart rate monitor so you won't need a separate monitor. However, it will pair with an external monitor if you're serious into always having the most accurate HR measurements under all conditions - like swimming.
Sorry, there was a problem. Please try again later.It takes heart rate at wrist from the watch.
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Sorry, there was a problem. Please try again later.No you don't, it keeps track of heart rate without a chest band.
Sorry, there was a problem. Please try again later.No it has a built in heart monitor. You do have the option of using one tough.
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