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Sale price: LBP1,875,000.00

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We have designed this product for runners looking for a simple watch with a heart rate monitor on the wrist and a calorie counter.

Find your rhythm, control your breathing, burn more fat and improve your performance thanks to the heart rate monitor!

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Sale price: LBP1,875,000.00

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Product Features


Parameter measurement

Heart rate on the wristband (in BPM and % Max HR), stopwatch, calories burnt.


Automatic and manual exercise zones (comfort, endurance, resistance).


Readable screen in full sunlight.


2.5 days in heart rate mode, 30.5 days in watch mode.


Water resistance rating of 5 ATM. You can swim on the surface.

User comfort

Heart rate measurement at the wrist for added comfort.


The heart rate can be sent to the Decathlon Coach app.

Product Reviews

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376 reviews

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Great looking hrm watch. Strap is brilliant always get a comfortable fit all watch straps should be like this.

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Ok HRM, but that's all

As a HRM it's alright, but it doesn't connect to the decathlon coach app (as advertised) and doesn't work with any other app that I've tried, and there's zero support on the decathlon support site (at time of writing the HR 500 isn't even listed!)

Hello Mark,

Thank you for letting us your review on the product.

I confirm HR500 watch can connect to Decathlon coach app.

1. From your phone, download and open Decathlon Coach

2. Go to Settings

3. Go to Products

4. Choose HR sensor

5. Connect my sensor - Launch detection

6. On your watch, from the main menu, press the START button (top right). The Bluetooth logo at the top of the screen should be flashing.

7. Choose Kalenji HR500 on your phone

Once the watch has been paired with the application, the Bluetooth logo should be fixed. Now, the application receives your heart rate.

Product also works with other apps, you need to connect it as a HR sensor.

If you still need other support, don't hesitate to contact our suppor team :

Webpage support for this product is in maintenance and will be soon updated.

Have a good day,


reasonable price & good but worry to try in swim

is it ok in swim ? & how to connect in strava in swim?

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Nice Product

This device is good

Cheap And Best Continue

Over all, it's very good. My review is in continuation of earlier review.. recommend to go for it... secondly by mistake woman was placed in post while I am man...

Model is ok but inside no function no any app conn

Put function Sports app connected and Bluetooth improve

Hello Mr Kumar,

I hope you and your family are keeping safe and sound. I am extremely sorry to hear that you had an unpleasant experience with our Kalenji HR500 sports watch.

I have taken your feedback and will surely work on this, as we believe in customer satisfaction more than anything else. If you require more assistance, you may contact me directly. I would be eager to hear more feedback about our running range. 

Thank you, once again, Mr Kumar! Hope to hear from you soon!


quality is good

i use this watch very comfortable, so esy to use running, walking and many more,

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Dear Mohamad Mukhlis,greetings from Decathlon! Firstly, thank you so much for sharing your kind words and great review with us. It means the world to us and to our entire team! We work hard to meet expectations like yours, and we’re happy to hear we hit the mark for you.Stay loyal to Decathlon and please let us know if there is anything else we can improve on in the future. We are very grateful for customers like you and hope you stick with us for years to come. Thank you once again for your time and we hope to serve you again soon!

Muhammad Aqkil

Its wonderfull

Yes. its great to use

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Dear Idrees, thank you for your time in leaving us with a 5-Star rating on our product. We are glad that we managed to delight you with the standards of our product. We really appreciate your loyalty with Decathlon. Please let us know if there is anything else we can improve on in the future. Thank you once again for your time and we hope to serve you again soon! :)


Do not buy this product

They say it can connect to your phone but it doesn’t and it does not shows your pace it only shows bpm and calories burnt.i would rather buy the xiaomi mi band,it shows everything from your pace,bpm,calories burnt and others.

Dear Althoff Azreen, thank you for taking the time to write the review! We are truly sorry to hear that our product did not meet your expectations. We have read your feedback and would like to contact you personally in case you would like to highlight any other shortfalls in our product for us to improve ourselves in satisfying your needs as your satisfaction is our top priority.

Nur Fariz

Parameter measurement.

When on the run, it just show the heart rate. It does not show the duration of the activity like the onrythm 500.

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Hello Ng,

Thank you for taking the time to review the KALENJI HEART RATE MONITOR RUNNING WATCH 500 - BLACK

Your user feedback will be very valuable in helping us to improve upon this product and any future new releases which we bring in. I will convey your valuable usage experience to our offer team for their further evaluation and improvement.

If the product is still causing you further issues, do feel free to return to your nearest Decathlon store for a return or refund.

It is thanks to users such as yourself that we at Decathlon are able to continuously design quality products for all our sport users! (:

Run Forth and Conquer


Digital Sports Leader | Running Sports


This watch is good for what it's meant to do, measuring heart rate which is very accurate. It doesn't show distance covered or speed and it only comes in black. Instruction is pretty sketchy and the online manual isn't much help either. You'll have to play around with the buttons to figure out how it operates. The saving grace is that pairing with the Decathlon coach app is a breeze and together they provide a satisfactory profile of the workout.

Hello Chan,

Thank you for taking the time to review the KALENJI HEART RATE MONITOR RUNNING WATCH 500 - BLACK

Your detailed user feedback will be very valuable in helping us to improve upon this product and any future new releases which we bring in. I will convey your valuable usage experience to our offer team for their further evaluation and improvement.

It is thanks to users such as yourself that we at Decathlon are able to continuously design quality products for all our sport users! (:

Run Forth and Conquer


Digital Sports Leader | Running Sports

Great Value Price ratio

I am happy with the purchase of the kalenji watch! The battery stay for long! Quite good when I linked it with Decathlon Coach app to follow my runs!

Hello Eyral,

Thank you for taking the time to review our products. I am pleased to hear you enjoy using this Kalenji HR 500 - Black.

We look forward to more of your reviews and sharing! Plus, the new Decathlon app has been launched and you can now purchase all your favourite sports goods with just a few clicks on your smartphone! Yes, it's now available both in the App store and Google Play Store! Download now and happy shopping!

Sport on safely!


Mountain Forever!

The Kalenji HR 500 does the job

Was looking for an affordable watch that could measure my heart rate during exercise. The Kalenji HR 500 does the job when I run and when I swim. Then I also tried to link up the watch with the Decathlon Coach app. That was more complicated - setting up of the bluetooth watch and headset - not sure if my phone can do it. Also, the app stopped operating mid-way in the excerise, supposedly, due to the phone's energy saving mode. I am still trying to figure out the app. at least I am monitoring my heart rate.

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Hi Ian,

Thank you for taking the time to write a review on the  KALENJI HR 500 - BLACK.. I am glad that this product has been working well for you and that you love it.

At Decathlon, our mission is to make sports accessible for the many. It is our responsibility to ensure that our products are made to satisfy our users. 

Feel free to write a review on other Decathlon products and I hope to see you in our store soon!


It's ok

I use it to check my heartbeats when I walk, run or shoot some hoops. There is a delay between the real heartbeat time and the display. Seems to be behind 2 to 3 minutes. Nevertheless it give me some idea about my heartbeats while exercising. The kcal reader seems good enough but this is not important to me. I would have given a 4 stars but the apps download ask for my password for my e-mail. I refuse to give my e-mail password as most company eventually get hawked. So no apps for me.

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Hello Jacques

Thank you for reviewing KALENJI running products/GPS, Heart Rate Watches

KALENJI HR 500 HEART RATE RUNNING WATCH. Find your rhythm, control your breathing, burn more fat and improve your performance thanks to the heart rate monitor!

Your feedback will be improved in the next opportunity.

Have fun with sports and be healthy.

Sarawoot Promsriroj (JACK)

Road Running &Triathlon Leader Decathlon Rangsit

Tell 020631990

Line ID: Jackphichit

drahá hračka

Když uvážím cenu 1299,- je to poměrně drahá hračka. Optické snímání tepu není obecně moc přesné, tady ale při běhu lítá 30 sem 20 tam, +- autobus. Nejsou tedy vhodné pro rekreační běžce, kteří chtějí zhubnout a běhají podle tepovky, tím míň pro běžce pokročilejší, neboť nemají GPS a nevíte ani základní veličinu, uběhlou vzdálenost. Hodinky a stopky to je jejich využitelnost. Bleskem vráceno.

Dobrý den, Pablo,

děkujeme za Váš čas věnovaný recenzi tohoto produktu. Každá zkušenost je velmi cenná a pomáhá nám s vývojem nových modelů.

Je nám velice líto, že jste byl s hodinkami nespokojen. Chápeme však, že ne každý produkt vyhovuje všem naším zákazníkům. Z těchto důvodů máte vždy 90 denní bezplatnou lhůtu na vrácení pouze vyzkoušeného zboží. 

V případě, že se jedná o vadu produktu, je samozřejmě na místě reklamace.

Za komplikace se Vám omlouváme.

S láskou ke sportu


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Additional Product informations



  • 90% Silicon
  • 10% Stainless Steel


  • 10% Polymethyl Methacrylate
  • 20% Stainless Steel
  • 70% Acrylonitrile Butadiene Styrene


  • 70% PCBA
  • 30% Copper

Why run with a heart rate watch?

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.

Heart rate monitoring at the wrist

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 & 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.

Running with your heart rate to set the pace

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.

Running with your heart rate to burn fat

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.

Finding training programmes

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.

How are exercise zones calculated?

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.

Heart rate monitoring at the wrist: how does it work?

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!

Is an optical heart rate monitor less precise than a heart rate belt?

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.

How to wear the hr 500

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.

Does the optical heart rate monitor on the hr 500 work on all types of skin?

The heart rate sensor technology on the HR 500 is designed for all skin colours and any amount of arm hair. On dark or tattooed skins, less light is reflected by the skin. In this case, the sensor adjusts by increasing the brightness of the emitted light or by adjusting the sensitivity of the light sensor. If however you encounter any problems, contact our team on our support website.

Is the optical heart rate monitor on the hr 500 suitable for all sports?

The heart rate sensor technology on the HR 500 is ideal for sports involving repetitive movements such as running, walking or cross-training.For sports involving unsynchronised movements like fitness sports, weight training, racket sports and team sports, you may observe errors in the readings.

Manual heart rate zones

If you want to train in a very specific heart rate zone, you can enter a manual heart rate zone into the watch (in BPM or %MHR). A graphic indicator on the screen, along with a sound signal, will inform you when you leave the zone. You can also enter your resting heart rate and maximum heart rate yourself if you already know them.

Compare your runs

The HR 500 watch gives you summaries of your previous runs. For each session, you'll find your run duration, your average heart rate and the number of calories burnt.

Battery life & charging

The HR 500 jogging watch has a battery life of 2.5 days in heart rate mode and 30.5 days in watch mode. It can be recharged using the USB cable provided.


Useful screen diameter: 25 mmThickness: 14 mmWeight: 34.4 g

Warranty & after-sales service

DECATHLON products include a 2-year warranty. If you have any questions, go to our support website.You will find tips to make effective use of your device: instructions, frequently asked questions from our users, and video tutorials. In order to provide you with maximum support, the assistance support team is available 24/7 and will respond to you personally.

User restrictions

This watch is designed for sport and leisure. It's not a medical device. The information provided by the watch is for information purposes only and must not be used to track a pathology.Do not use the heart rate measurement function in water.

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