Sized for smaller athletes, the Polar F4 heart rate monitor helps keep fitness enthusiasts in the correct zone for optimized training benefit.
Visually follow the time in your target heart rate zone via the fitness bullets displayed
Set your heart rate limits and stay informed as to where you are within these zones with the innovative Zone Pointer and alarm system
OwnCal™ feature counts calories and fat burned based on your own effort level
Easy-to-read display and simple button access to functions make this monitor easy to use
Wireless receiver sends readouts that are ECG accurate
Accompanying lightweight Polar Transmitter is comfortable to wear in nearly any environment
Memory file stores average heart rate and total exercise time
Please note: The Polar F4 HRM is very small. It will fit the smallest of wrists. If you are not "petite" or you'd rather have a more mid-sized heart rate monitor you may wish to consider the Men's Polar F4 or the F6 as an alternative with a larger display.