The broken lines in the drawing are included for the purpose of illustratinv portions of the heart rate monitor that form no part of the claimed design.
A portion of the disclosure of this patent document contains material to which a claim for trademark is made. Specifically, the mark POLARĀ® is a registered mark of Polar Electro Oy. The owner has no objection to the reproduction of the patent document or the patent disclosure, as it appears in the U.S. Patent Office records, but reserves all other trademark rights whatsoever.