Accurate monitor heart rate, the best choice when you exercise.

Newly designed hardware and algorithms help you accurately monitor your heart rate while exercising, maximizing your exercise results.

Comes in red, white, blue and green, you can choose the shell of the H603 to pair it up nicely with your jersey or bike.

Not only the newer design and colours, there is also an upgrade in the performance-tracking processor unit, where it brings more accurate heart rate data to the user itself, and completely removing the inaccuracy caused by road bumps and uneven surfaces.