MioPINK Motiva Petite Women&#39;s Heart Rate Monitor Watch Wristwatch-style HRM provides ECG accurate heart rate without a chest strap; bonus watch band included 10 percent of sales are donated to Susan G Komen For The Cure in support of breast cancer research Calculates percentage of maximum heart rate based on personal data to help you gauge your exertion levels Full-featured sports watch with time, date, chronograph, alarm and back light Backed by 1-year warranty