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Disclaimer: The dietary and other substances, and/or materials, equipment or devices discussed on this site may not have undergone evaluation and/or testing by the United States Food and Drug Administration or like agency of any other country. Risks that might be determined by such testing are unknown.
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Featuring a new, slim design, the F4 is Polar's first heart rate monitor designed specifically for women. It's packed with innovative training features to help you toward your exercise goals, including:
* Zone Pointer: A visible a...