Designed for people who want to manage their health with easy-to-use heart rate monitoring, the Mio Zone Plus offers everything you need in a full-featured sports watch. The Zone Plus offers strapless, customizable heart rate target zones and performance timers to give you the feedback you need to ensure you're working out in the most effective way. With the simple touch of a button, you'll know if your heart rate is above, below or within your optimal training zone. This watch offers the functionality of a performance sports watch with time/date, stopwatch, alarm, and bright backlit display in an easy-to-read format as well as the convenience of an ECG accurate heart rate monitor.