Heart Rate Watch is the number of heartbeats per unit of time, typically expressed as beats per minute (bpm), which can vary as the body's need for oxygen changes.Our pulse rate watch best heart rate monitor is designed for those who care about personal fitness and want to keep a close eye on their health. The heart rate monitor has all the standard features - time, stopwatch, and alarm - plus other options for watching your calories and heart rate. Designed to fit slender wrists comfortable and securely.With this Heart Rate Calories Watch, you can obtain the data about your heart rate and get the certain information of your body heath without any other medical equipment.