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Kalenji DUAL ANT+ Smart Runner's Bluetooth Heart Rate Monitor Belt

Sale price: $44.99 Regular price:

Your heart rate on your smartphone and/or GPS watch.

Color: Select a color
Size: Select a size
Sale price: $44.99 Regular price:

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San Francisco, 735 Market St. Options

Select an available color and size to see options.

Model: 8334795

Product Features

A photo of the Kalenji DUAL ANT+ Smart Runner's Bluetooth Heart Rate Monitor Belt in use

Kalenji DUAL ANT+ Smart Runner's Bluetooth Heart Rate Monitor Belt is designed for We designed this belt for visualizing your heart rate on your compatible smartphone or GPS watch.

Your heart rate on your smartphone and/or GPS watch.

Measurement settings

Heart rate monitor. Sends to your ANT+/Bluetooth smart device.


1 ATM (Water projection)

User comfort

Fabric belt for more comfort.


Compatible with Bluetooth Smart (4.0) and ANT+ devices.

Product Customer Reviews

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Kalenji DUAL ANT+ Smart Runner's Bluetooth Heart Rate Monitor Belt,black
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Perfect HRM

Bought to replace a garmin, just as accurate as the garmin, battery runs out if you dont unclip the unit from the belt which you dont have to do on the garmin. Not really a problem as i just unclip one side, totally unclipping the unit from the belt resulted in me heading out the door with just the belt on a few times.

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No response to query about replacement belt

The product is good and works as described, connected easily with my smart bike apps. However, my query about purchasing a replacement belt remains unanswered for many weeks now. The product is not listed on the online portal. Unless a replacement belt is offered , I can't recommend this product.

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Fit for purpose

Wanted the Blue tooth connectivity for use with my Smart Trainer setup. Connected straight away and faultless operation in the first 2 weeks. Comfortable to wear.

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Kalenji HRM belt

Syncs perfectly with FulGaz. Comfortable to wear and easy to clean.

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Great product

Works as advertised. Connects easily to my phone and my cycling computer

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Hr monitor and garmin 520 plus

Bought to replace my garmin hr monitor. Syncs to my garmin edge 520 plus and works perfectly. Cost heaps less than a garmin one. Very happy.

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So einige Problem damit

Als erstes es lässt sich nicht mit den Hauseigenen Domyos Bike 900 verbinden. Zum anderen entlädt sich die Batterie innert Stunden! Dieses Produkt wurde mir ausdrücklich für Domyos Indoor Bike 900 empfohlen und verkauft. Kann es daher nicht weiter empfehlen.

Excellent product

With only a few recent outings, I can say that this product works well. Very straightforward to get connected to my head unit, links easily now automatically. Readings seem to be accurate. Recommended.

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Great hrm

Really good value hrm. Both ant+ and Bluetooth and super soft strap. Cheaper and better functionality than the leading brand. Excellent work decathlon. Excellent product .

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Item doesn’t work and won’t connect with devices

Cheap rubbish

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Cracking piece of kit.

As this is my second review of this Heart Rate Monitor (HRT), first reveiw must have got lost in the ether. This is a great piece of kit, i use this on my cycling Turbo Trainer, to see what numbers i am producing, this works with Ant+ as well as Bluetooth, i have this working with the Wahoo app on my mobile/cell phone coupled up with a Cadence and rear wheel speedo sensor. I found the best way to use this is to follow the instructions as to wet the HRT contacts, i also wet my chest to ensure a good contact, switch your phones Bluetooth and location on first, pedal to get the Cadence switched on then open the Wahoo app, the sensors are connected and away you go. Triban Rider

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Low cost value for money. Occasional signal dropout when used with my Garmin cycle computer means it gets 3 stars. 100% reliable when used on bluetooth with my indoor trainer.

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The best

Thanks a-lot for excellent service..

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Basic but functional

connects well and responds accurately

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Fantistic almost

Bought this to pair with my smart trainer works every time. The product works perfectly but the only reason I did not give it 5 stars is the strap. I can’t get it to stay flat when attached so just rolls up but still comfy.

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Additional Product Information



  • 100% Polycarbonate - Acrylonitrile butadiene styrene
  • 10% Pcba
  • 10% Copper

[EN] Electronic circuit

  • 10% Copper
  • 10% Pcba
  • 80% Printed circuit board

Track data

The Dual belt uses Bluetooth Smart (4.0) and ANT+ communication technology to send your heart rate.


A textile belt for more comfort.

Compatibility smartphone bluetooth smart

iOS : iPhone 4S and more recent Android : Download the Decathlon utility application to check if your phone is compatible

Compatibility smartphone sports applications

[The Dual Geonaute belt can be used with all compatible Bluetooth Smart sports applications. Use the Bluetooth Smart application to check that your phone is compatible with the technology.] iOS : Decathlon Coach | Runkeeper | Runtastic Pro | Endomondo | Strava Android 4.3 mini: Decathlon Coach | Endomondo | Runtastic Pro

Compatibility gps bluetooth smart (4.0) watches

Compatible with GPS watches using Bluetooth Smart (4.0) technology: Geonaute ONmove 200, ONmove 220, Polar M400, Polar V800, TomTom Runner

Ant+ compatibility

List of ANT+ compatible products: compatibilité ANT+


CR2032 included

Instructions for use with a smartphone

1/ Moisten the belt sensors 2/ Place the belt against your chest 3/ Activate the Bluetooth on your smartphone 4/ Start the selected sports application on your smartphone and pair the belt in the application settings. NOTE: The belt is not displayed as a Bluetooth device in your phone. It must be paired from the application.

Use 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.



Care instructions

The belt is machine-washable (without the sensor).

Superior quality. Unbeatable prices.

For 40 years, Decathlon has delivered the best value in the retail sports industry by offering high-quality, sustainable and cost-effective products.

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Size Guide Visual