Polar RS400sd Heart Rate Monitor Watch with Free IRDA - USB 2.0 Interface

The RS400sd adds in running speed, pace and distance with the S1 foot pod, so the active runner who runs multiple events each year can monitor all elements affecting performance. The Running Index feature will help the athlete to improve their running efficiency, which in turn indicates an improvement in their economy of running performance.

Packed with a number of innovative training features to help you toward your exercise goals, the Polar RS400sd heart rate monitor watch is a great choice for avid runners. The RS400sd--which contains all the same advanced running features as the RS400 but with a few extras--helps you optimize your performance with every step. The RS400sd comes with a foot pod that attaches comfortably to your running shoe laces, letting you accurately and wirelessly measure your speed, distance, pace, and performance level. As a result, it's easier than ever to meet your predetermined workout goals. The watch also measures your heart rate and determines whether your pace fits within specific heart rate zones, helping you manage the intensity of your training. Add in a number of basic running watch functions--including visual and audible target zone alarms, an event countdown timer, and an oversized display--and you'll be ready for track, road, and trail training.

Tracking and monitoring your speed and heart rate aren't the RS400sd's only major functions, however. The Polar Own Cal function, for example, tracks your energy expenditure during a single exercise session as well as your accumulated kilocalories throughout the week. As you progress, you can set daily and weekly exercise goals in terms of calorie expenditure, helping you achieve both short- and long-term goals. The company also included several other Polar-exclusive features: OwnZone, which guides you through an appropriate warm-up routine and automatically determines a safe and effective exercise heart rate zone; OwnOptimizer, an easy and reliable way to determine whether your training program is optimally developing your performance; and OwnCode, a technology that blocks unwanted crosstalk signals from other heart rate monitors nearby, ensuring your heart rate data is transmitted clearly. The latter feature is particularly helpful when exercising with other people, such as in aerobic or spinning classes.

You can also use the RS400sd to record your training info and synchronize it later with Polar's ProTrainer 5 software. This allows you to analyze your training progress and create new training settings from your personal computer. The watch records such data as average and maximum heart rate, calorie expenditure, total distance, exercise time, lap info, and time in target zone, and includes a maximum of 99 exercise files. Other features include a Polar T31 coded HR transmitter belt, a date and weekday indicator, an alarm with a snooze, a stopwatch, and a user-replaceable battery.

About Polar
Polar invented the first EKG accurate wireless heart rate monitor back in 1977 as a training tool for the Finnish National Cross Country Ski Team. The concept of "intensity training" by heart rate swept the athletic world in the '80s. By the 1990s, individuals were looking to heart rate monitors not only for performance training needs, but also for achieving everyday fitness goals. Today, heart rate training is employed by world-class athletes as well as everyday people trying to lose weight, and Polar is the leading heart rate monitor brand among consumers, coaches, and personal trainers worldwide. The company is committed to not only producing the best products, but also being the leading educator on the benefits of heart rate based exercise.