Netherlands (English)
België
Deutschland
Finland
Ireland
Luxembourg
Portugal
Poland
Österreich
France
España
Italia
Sverige
Danmark
RRP 64,90
54,95
- Ordered before 22:00, delivered tomorrow
- Free tracked delivery
Does this page help you make your choice?
Ask a question about this product
Try in store
Available directly in-store, or order online.
Pros & Cons
Pros & Cons
- With a battery life of 400 hours, a battery will last for about a year if you train one hour a day.
- Can connect with your sports watch, bike computer or fitness equipment via Bluetooth, ANT+ or 5kHz.
- Can connect with a Bluetooth and ANT+ device at the same time; this is ideal when you exercise with multiple devices, like a bike computer and a sports watch.
- The Polar H9 has no memory function or accelerometer. For these features please consider the Polar H10 heart rate sensor.
Specifications
Specifications
| Brand | Polar | |
| Heart rate monitor model | Chest Strap | |
| Chest circumference | 65 - 107 cm | |
| Rechargeable | No, button battery | |
| Colour | Black | |
| ANT+ | Yes | |
| Bluetooth | Yes |
The Polar H9 heart rate sensor comes at a more affordable price than the Polar H10 heart rate sensor. It can be connected with your watch, cycle computer or fitness device via Bluetooth, ANT+ or 5kHz, and is compatible with the free Polar Beat app. A unique feature is that the H9 can connect to a Bluetooth and an ANT+ device simultaneously, so you can see your heart rate on your sports watch and bike computer at the same time. This makes the Polar H9 a true all-rounder! With its 400-hour battery life, a battery lasts about a year if you train for one hour a day.
You will find real-time heart rate monitoring, training goals and guidance, and performance analysis in the Polar Beat app. You'll also have access to Polar Flow for more extensive data analysis and an overview of progress over a longer period of time. This device is compatible with iOS mobile devices: iPhone 5s and later, with iOS 12 or later; Android mobile devices with Bluetooth 4.0 capability, and Android 6.0 or later. That means you can use the Polar H9 with most modern smartphones. If you're looking for a quality heart rate sensor with the aim of using it with your favourite Polar device or smartphone, choose the Polar H9!
You will find real-time heart rate monitoring, training goals and guidance, and performance analysis in the Polar Beat app. You'll also have access to Polar Flow for more extensive data analysis and an overview of progress over a longer period of time. This device is compatible with iOS mobile devices: iPhone 5s and later, with iOS 12 or later; Android mobile devices with Bluetooth 4.0 capability, and Android 6.0 or later. That means you can use the Polar H9 with most modern smartphones. If you're looking for a quality heart rate sensor with the aim of using it with your favourite Polar device or smartphone, choose the Polar H9!
Waterproof, suitable for swimming
The Polar H9 is suitable for use during long swims. Polar has not had an independent party test the product for water resistance, which is why it doesn't have an official IP rating, but Polar has done a lot of testing itself. As a result, Polar states that the product is water-resistant up to 30 metres deep. In practice, this means that you can go swimming with this product, but we don't recommend actually diving to a depth of 30 metres with it!
ANT+
ANT+ connectivity allows you to connect this device to other devices that use the ANT+ protocol. That means products from different manufacturers can be linked smoothly to this device. Many bike computers and compatible sensors support this wireless technology through which all your sensors and devices can exchange data easily, so you can have all your data in the right place.
Bluetooth
You can easily connect this product to most smartphones and view your training data in all your favourite fitness apps, such as Strava, Runkeeper, Endomondo and Wahoo Fitness, thanks to its Bluetooth connectivity.
The Polar H9 is suitable for use during long swims. Polar has not had an independent party test the product for water resistance, which is why it doesn't have an official IP rating, but Polar has done a lot of testing itself. As a result, Polar states that the product is water-resistant up to 30 metres deep. In practice, this means that you can go swimming with this product, but we don't recommend actually diving to a depth of 30 metres with it!
ANT+
ANT+ connectivity allows you to connect this device to other devices that use the ANT+ protocol. That means products from different manufacturers can be linked smoothly to this device. Many bike computers and compatible sensors support this wireless technology through which all your sensors and devices can exchange data easily, so you can have all your data in the right place.
Bluetooth
You can easily connect this product to most smartphones and view your training data in all your favourite fitness apps, such as Strava, Runkeeper, Endomondo and Wahoo Fitness, thanks to its Bluetooth connectivity.
• Polar H9 heart rate sensor
• Polar Soft Strap
• Polar H9 quick guide
• Information form
• Polar Soft Strap
• Polar H9 quick guide
• Information form
Reviews
Reviews
Most recent reviews
3 / 5
3½ years of enjoyment, then buy a new one
- Casper 14 June 2026
It connects well, is comfortable to wear and works accurately. The downside is that it breaks easily, just like all heart rate monitors on the market.
Pros & Cons
Works well and accurately
Broke down after 3½ years, so now I have to buy a new one
Automatic translation
5 / 5
Quality is top
- Dieneke 18 October 2025
Works fine with your phone
Pros & Cons
Good quality
Good to connect with your phone
Vand is big enough
Automatic translation
5 / 5
Top product
- Anthony 15 September 2025
This Heart Rate Monitor is great. Does what it needs to do,reliable and stable. pairs effortlessly with Iphone via Polar Beat and Polar Flow
Automatic translation
5 / 5
Works as intended.
- Alvin 21 July 2025
Works as intended. Great for interval running or anything that can swiftly change your heart rate.
Pros & Cons
Feels comfortable
Long-lasting battery
Tracks HR well
None
5 / 5
Great heart rate monitor at an acceptable price
- Robin 8 March 2025
A lightweight and accurate heart rate monitor. Great device, easy connection to Garminwatch.
Pros & Cons
Accurate
Comfortable
No
Automatic translation
3
Casper, 14 June 2026
3½ years of enjoyment, then buy a new one
It connects well, is comfortable to wear and works accurately. The downside is that it breaks easily, just like all heart rate monitors on the market.
-
Works well and accurately
-
Broke down after 3½ years, so now I have to buy a new one
Automatic translation
Frequently bought together
Frequently bought together
Related products
Related products
Compare the products above
|
|
|
|
|
| Polar H9 | Hammerhead HRM 2.0 C1 | Polar H10 | Garmin HRM-Fit | |
| 28 reviews | 1 review | 34 reviews | 1 review | |
| Heart rate monitor model | Chest Strap | Chest Strap | Chest Strap | Chest Strap |
| Chest circumference | 65 - 107 cm | 71 cm - 122 cm | 75 - 118 cm / 62 - 82 cm | |
| Rechargeable | No, button battery | No, button battery | No, button battery | No, button battery |
| Colour | Black | Black | Black | Black |
| ANT+ | Yes | Yes | Yes | Yes |
| Bluetooth | Yes | Yes | Yes | Yes |
| 54,95 | From 43,70 | 89,90 | 137,85 | |
| This product | View product | View product | View product |