Polar H9 Heart Rate Sensor

Polar H9 Heart Rate Sensor
26 reviews
65,97

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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.
Read more on what our customers have to say about this product

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

Reviews

Reviews

4.6 / 5
Average from 26 reviews
5
18 reviews
4
5 reviews
3
2 reviews
2
0 reviews
1
0 reviews

Most recent reviews

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

5 / 5

Does exactly what you need.

- Niels 7 March 2025

With previous chest straps, it was often a puzzle when no signal appeared on my Wahoo. Was it due to the battery? Was there an accidental connection to my smartwatch as well? After a month, I haven't had these kinds of problems at all. Just a quick signal and through the app you can check if the battery is still okay. Apart from that, it just sits comfortably. No bells and whistles, but I don't need that with a chest strap.

Pros & Cons

Battery check via app
Easy to link
Sits comfortably
Automatic translation

3 / 5

After 3 disappointments, I still hope I bought a good heart rate monitor.

- Raf 24 February 2025

I have used it 3 times now and every time I have the same problem.When I cycle at a good pace, my heart rate meter indicates +/- 120, which is normal for me.If I increase my effort seriously, e.g. when going up a mountain, my heart rate meter drops to +/- 35 and sometimes even to 0.Strange but true, when I exert myself, my heart rate drops, at least this is what my Garmin indicates.If my son puts the heart rate meter on, it works normally.

Pros & Cons

good price
I do not find the strap closing very practical
Automatic translation

5

Anthony, 15 September 2025

Top product

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

Alvin, 21 July 2025

Works as intended.

Works as intended. Great for interval running or anything that can swiftly change your heart rate.

  • Feels comfortable
  • Long-lasting battery
  • Tracks HR well
  • None

5

Robin, 8 March 2025

Great heart rate monitor at an acceptable price

A lightweight and accurate heart rate monitor. Great device, easy connection to Garminwatch.

  • Accurate
  • Comfortable
  • No
Automatic translation

5

Niels, 7 March 2025

Does exactly what you need.

With previous chest straps, it was often a puzzle when no signal appeared on my Wahoo. Was it due to the battery? Was there an accidental connection to my smartwatch as well? After a month, I haven't had these kinds of problems at all. Just a quick signal and through the app you can check if the battery is still okay. Apart from that, it just sits comfortably. No bells and whistles, but I don't need that with a chest strap.

  • Battery check via app
  • Easy to link
  • Sits comfortably
Automatic translation

3

Raf, 24 February 2025

After 3 disappointments, I still hope I bought a good heart rate monitor.

I have used it 3 times now and every time I have the same problem.When I cycle at a good pace, my heart rate meter indicates +/- 120, which is normal for me.If I increase my effort seriously, e.g. when going up a mountain, my heart rate meter drops to +/- 35 and sometimes even to 0.Strange but true, when I exert myself, my heart rate drops, at least this is what my Garmin indicates.If my son puts the heart rate meter on, it works normally.

  • good price
  • I do not find the strap closing very practical
Automatic translation

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Frequently bought together


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26 reviews 24 reviews 1 review
Heart rate monitor model Chest Strap Chest Strap Chest Strap
Chest circumference 65 - 107 cm 65 cm - 93 cm
Rechargeable No, button battery No, button battery No, button battery
Colour Black Black Black
ANT+ Yes Yes Yes
Bluetooth Yes Yes Yes
65,97 81,27 152,43
This product View product View product

All specifications

Brand
Polar

General

Heart rate monitor model
Chest Strap
Rechargeable
No, button battery
Colour
Black

Connectivity

ANT+
Yes
Bluetooth
Yes

Size

Chest circumference
65 - 107 cm