Stay within your ideal training and intensity range while jogging or working out with the Polar FT40 women's heart rate monitor watch. The FT40 works by first checking your daily condition, and then guiding you to the ideal training intensity for your age and fitness level. Knowing your heart rate not only helps you reach your personal fitness goal, but also improves your physical condition in general, as it's vitally important to train at the appropriate intensity level. If you exercise too hard, you may quit before you reach the real benefit, but if you work out too leisurely, you'll struggle to lose weight at all. The FT40 helps overcome these problems by encouraging you to map out a complete fitness routine.

The FT40 is packed with innovative training features to help you toward your exercise goals. First off, the watch displays heart rate info in several ways, including as a percentage of your maximum heart rate, as beats per minute, and within a graphical target zone indicator. The watch also offers a visual and audible alarm for when you exceed or dip below your target zone--a great way to stay motivated while on the track. And users will love the EnergyPointer, ZonePointer, and Polar OwnCal modes. The EnergyPointer determines the point at which your training no longer just burns fat but also improves your overall fitness level--an ideal feature for high-performance runners. The ZonePointer, meanwhile, is an audible and visual feature on the display of your FT40 that shows you where your current heart rate sits within your target heart rate zone. Finally, the Polar OwnCal mode shows your energy expenditure during one exercise session, as well as your accumulated kilocalories during several exercise sessions. You can also set daily and weekly exercise goals in terms of calorie expenditure, helping you achieve both short-term and long-term goals.

Other features include a built-in fitness test that measures your aerobic fitness at rest in just five minutes; a ZoneLock mode that lets you activate a target zone in the midst of training with the press of a button; an OwnCode mode that prevents crosstalk from other heart rate monitors nearby; a recording mode that tracks your average and maximum heart rate, calorie expenditure, and total exercise time, and then puts it in an exercise file (with 50 total files); water resistance to 30 meters; a 12/24-hour clock with a day/week indicator; a built-in backlight; an alarm with a snooze; a low battery indicator; and a Polar FlowLink connection for transferring data between the FT40 and a computer. Sporting an attractive green housing, the watch carries a two-year warranty.