As far as heart rate sensors are concerned, Polar offers a solid trio for any heart rate tracking need: Polar Verity Sense vs Polar H10 and Polar H9.
All three are equipped with Polar's innovative heart rate tracking technology. All three use Bluetooth® and ANT+ to connect to a great variety of training devices, apps, and Polar sports watches. All three have specific use cases in which they really shine.
But how do you know which heart rate sensor is right for you?
Two measurement methods
Let’s start at the highest level. One important factor that differentiates Polar Verity Sense vs. Polar H10 and Polar H9 is that Polar H10 and H9 are worn on the chest with a chest strap, whereas Polar Verity Sense is an optical heart rate sensor that can be worn on your arm, clipped to your swimming goggles, or placed just about anywhere on your body where it can fit snugly against your skin.
While both chest strap and optical sensors measure your heart rate, they do it in different ways, using different technologies.
The chest strap measures the electrical activity of the heart, and it’s recognized as the most precise way to measure heart rate. The optical heart rate sensor measures changes in the size of blood vessels with the help of LED lights and a light detector – ultimately providing incredibly accurate heart rate readings effectively.
Another practical thing is that the electrodes on the chest strap need moisture to work, meaning that you must have some water handy to get the chest strap sensor to function. The optical heart rate sensor doesn’t need any moistening so you can start training quicker and easier.
It may sound boring, but if you want all the information quickly in one glance, here’s a quick comparison table:
| Polar Verity Sense | Polar H10 | Polar H9 |
|---|
| Measurement type | Optical (PPG) | Chest strap (ECG) | Chest strap (ECG) |
|---|
| Worn on | Arm, temple (goggle clip) | Chest | Chest |
|---|
| Best for | Freedom of movement, swimming | Highest accuracy, intervals | Getting started |
|---|
| Strap included | Armband + goggle clip | Polar Pro strap | Polar Soft strap |
|---|
| Internal memory | Up to 600 h of training | 1 training session | None |
|---|
| Connectivity | Bluetooth® + ANT+ | Bluetooth, ANT+, 5 khz | Bluetooth, ANT+, 5 khz |
|---|
| Battery | Rechargeable (up to 30h of training) | Replaceable (Up to 400h of training) | Replaceable (Up to 400h of training) |
|---|
For a more detailed comparison, check our heart rate sensor comparison tool.
Next, let's explore all sensors deeper with the help of some basic use cases:
Choose Polar Verity Sense if...
You want maximum freedom of movement
Polar Verity Sense can be worn anywhere on your body - on your arm, clipped to your swimming goggles, or anywhere else where it can stay fitted snugly against your skin. Group fitness class about to start? Slip it on. Ready to track that grueling climb on your ride? Slip it on. Cold morning jog? You get the idea.
Evolved from the Polar OH1, Polar Verity Sense belongs to our new generation of optical heart rate sensors - designed for better usability with updated software and improved battery life, it equips you with a wider bluetooth range and bigger memory. Polar Verity Sense gives you up to 30 hours of training with incredible accuracy - so you can measure every move.
Swimming is your number one sport
The Polar Verity Sense comes with a handy swimming goggle strap clip so you can wear it comfortably against your temple when swimming.
The Polar Verity Sense has an internal memory that can store up to 600 hours of training data. Afterwards you can easily sync your data to the Polar Flow app.
Wearing a chest strap feels uncomfortable
If you find wearing a chest strap cumbersome and you don't want anything getting in the way of your training session, choose Polar Verity Sense.
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Polar Verity Sense
Optical Heart Rate Sensor
Polar Verity Sense is an optical heart rate monitor that provides you with maximum freedom of movement and multiple options for viewing and recording your workouts. With Bluetooth®, ANT+, and internal memory, you can connect Polar Verity Sense to a sports watch or app to see your workout in real time, or view your data afterwards.
Choose Polar H10 for...
Pro-level accuracy
Polar H10 is the most accurate heart rate sensor in Polar’s history and the choice of many pro athletes. Having said that, you don’t need to be a pro to want to enjoy pro-level heart rate tracking: the price range we’re talking about here doesn’t require breaking the bank.
Complete with the Polar Pro strap and its extra interference-preventing electrodes and slip-preventing silicone dots, Polar H10 gets you maximum precision for heart rate readings, capturing all the peaks and lows your sessions entail.
Ultra-long sessions
The battery on the Polar H10 lasts approximately 400 hours, so it's easy to see that Polar H10 is your best choice for those ultra-long sessions.
Interval training
It's hard to beat Polar H10 when it comes to extremely accurate heart rate measurements in a fast-paced situation, such as a hard interval training session. The Polar Pro strap ensures a secure fit and as little interference as possible.
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Polar H10
Heart Rate Sensor
When it comes to accuracy and connectivity, Polar H10 heart rate sensor is the go-to choice. Monitor your heart rate with maximum precision and connect your heart rate to a great variety of training devices with Bluetooth® and ANT+.
Choose Polar H9 for...
Getting started with heart rate tracking
If you’re looking for a basic and affordable, yet high quality device to track your heart rate with, Polar H9 is an excellent choice.
Affordable price, yet highly reliable heart rate readings
Chest is the best place for tracking heart rate because chest strap gets the sensor as close to your heart as possible. Polar H9 comes with the Polar Soft strap that is easy to use and machine-washable.
Matching with Polar Flow and other fitness apps
When you want to have one heart rate tracker that you can connect to your phone, but also to just about any Bluetooth® and ANT+ devices, Polar H9 is for you. Use it with Polar Flow or any other of your favorite fitness apps.
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Polar H9
Heart Rate Sensor
When you're looking for a reliable high quality heart rate chest strap, Polar H9 fulfills all your needs and more. Bluetooth® and ANT+ technologies open up endless connection possibilities to any app or device you want to use.
Frequently asked questions
Is the Polar Verity Sense as accurate as a chest strap like the H10?
For most steady-state training, arm-worn optical tracking is very close to a chest strap. For hard intervals and rapid changes in intensity, the H10's electrical (ECG) measurement is still the more accurate choice.
Which Polar heart rate sensor is best for swimming?
Polar Verity Sense. Its goggle clip lets you wear it at your temple, and its internal memory records the full session so you can sync afterwards.
What's the difference between the H9 and the H10 — is the H10 worth it?
Both are accurate ECG chest straps. The H10 adds the Polar Pro strap, the most precise readings in fast-changing efforts, and built-in memory. The H9 covers the essentials at a lower price. If you train hard with intervals or want pro-level accuracy, the H10 earns the difference.
How long does each sensor's battery last, and which records workouts offline
Verity Sense runs up to about 30 hours per charge and stores up to 600 hours of sessions in its internal memory. The H10 lasts around 400 hours and stores a session internally. The H9 doesn't store sessions offline.
Can I use these with apps other than Polar Flow?
Yes. All three connect over Bluetooth® and ANT+, so they work with Polar Flow, most fitness apps, and compatible gym equipment.
The wrap-up
There you have it — the basic differences between Polar Verity Sense, Polar H10, and Polar H9.
Even with those distinctions, all three are versatile and work well beyond the use cases listed here. The point of all three is the same: to help you train smarter with heart rate. If you're new to training by heart rate, our guide to heart rate zones is a good next step.
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