Although all of the items are important, it's the wristwatch that acts as the heart of the system, with such features as a highly accurate wireless heart rate gauge, a built-in fitness test, an interval trainer, a host of calculating options (including average and maximum heart rate, altitude and ascent details, and a countdown timer), and the ability to record 99 exercise files. In effect, the watch serves as a digital personal trainer, helping guide an athlete through detailed workouts of his or her own design.
When combined with the G3 GPS sensor, however, the system is even more robust. Incorporating the SiRFstarIII chipset, the G3 GPS sensor talks wirelessly to the RS800 watch to let athletes easily measure speed and distance for a variety of outdoor sports. The G3 GPS sensor is also water-resistant and weighs only 80 grams, making it tough and light enough to withstand training in the harshest of conditions. Simply strap the GPS sensor to your arm, a belt, or the top of a backpack and you're set.
Finally, Polar's ProTrainer 5 software--a Windows-based application for training planning and analysis--lets athletes and coaches easily create and share specific training plans and analyze recorded data. Users simply transfer the data between the computer and the wristwatch via a wireless infrared signal. The software can upload as many as 21 planned training sessions to the wristwatch, along with insightful graphs to track performance.
The first EKG accurate wireless heart rate monitor was invented by Polar 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 eighties. By the 1990s, individuals were looking to heart rate monitors not only for performance training needs, but also for achieving everyday fitness goals. Today, the same concept of heart rate training is being used by world-class athletes as well as everyday people trying to lose weight. Polar is the leading brand among consumers, coaches, and personal trainers worldwide and 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.