Kalenji HR 500

Wristband: 90.0% Silicone, 10.0% Stainless Steel ; Frame: 70.0% Acrylonitrile butadiene styrene, 20.0% Stainless Steel, 10.0% Polymethyl Methacrylate ; Deck: 70.0% PCBA, 30.0% Copper

Heart rate is measured in BPM (beats per minute). The more intensively you exercise, the faster your heart beats, and the more your BPM increases. Using your resting heart rate as a reference, the HR 500 heart rate watch is capable of telling you what kind of exercise you are doing: Warm-up, Comfort, Endurance, Resistance, Max. Each level of intensity has a different effect on your body: comfortable exercise, weight loss, better endurance etc.

The heart rate measurement on the wrist is a huge technological advance making heart rate watches simpler and more comfortable. For the last 4 years, our Research and Development teams have been testing different options for measuring the heart rate at the wrist.We chose the optical heart rate sensor option for superior comfort while guaranteeing a good reliability of the signal.

Are you often out of breath at the end of a run? The HR 500 gives you real-time information so that you can adjust your speed and avoid getting too close to your limits. In the comfort zone, you should be able to speak while running. In the endurance zone, the exercise will be more intense, but you shouldn't get out of breath. In the resistance zone, you will get out of breath after a few minutes.

Do you run to stay in shape? The ”comfort” zone is particularly useful because it allows you to burn more fat and avoid getting out of breath. In fact, in this zone, your body is not under stress. It has time to burn fat properly to turn it into energy for your muscles.

The heart rate of your training sessions can be sent directly to your Decathlon Coach session. Decathlon Coach is a free mobile app that guides you during your training sessions.

Your effort zones are automatically calculated according to your reserve heart rate (HRres = maximum heart rate - heart rate at rest). Your maximum heart rate is estimated according to your age and gender. By default, the heart rate at rest is 70 bpm. Warm-up: < 60% of your HRres.Comfort: 60 to 70% of your HRres.Endurance: 70 to 80% of your HRres.Resistance: 80 to 90% of your HRres.Hard resistance: 90 to 100% of your HRres.

When you do exercise, such as running, your heart beats more quickly. The flow of blood through your vessels increases. The green light under the wristband enables the HR 500 watch to measure the blood flowing under your skin, which is used to obtain your heart rate. This optical sensor technology is completely integrated into the watch: Leave your heart-rate monitor belt at home!

During our tests, we found that the optical sensor had an accuracy of more or less 2 bpm on average. The measurement is also a bit less reactive during interval training. We consider, like a lot of runners, that the advantages of having your heart rate on your wrist (comfort, simplicity, low weight etc.) largely outweigh the disadvantages.

To guarantee an optimal heart rate measurement, the HR 500 heart rate watch must be worn on the wrist after the prominent wrist bone.The sensor must be in contact with the skin, which means that the wristband must be properly tightened. Your optical heart-rate monitor will not perform as effectively if the watch is too loose. For more information, please watch our explanatory video at the bottom of this page.

At Kalenji, all our products are tested by a panel of users under the conditions for which they are designed. These tests are coordinated and led by a dedicated team of engineers. Using all these tests, our product managers, engineers and the whole Kalenji team can develop, create and design technical products that meet our users' needs.

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