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Polar OH1 vs Polar H10 | Which heart rate sensor is right for me?

Let’s start by introducing our contestants, two of our heart rate sensors: Polar H10 and Polar OH1.

Both represent Polar heart rate tracking technology, both use Bluetooth Smart and ANT+ to connect to a great variety of training devices, apps and Polar sports watches and both have use cases in which they really shine.

But how do you know which one of these heart rate sensors is right for you?

That depends on what you want to use your heart rate sensor for. First, let’s take a look at some tech specs side by side and then go through the specific situations where one works better than the other.

FeaturePolar OH1Polar H10
Bluetooth Low EnergyXX (2 simultaneous connections)
ANT+ connectivityXX
5 kHz transmission (Gymlink)X
Updatable software (over the air)XX
HR measurement methodOptical HRECG, chest strap
Built-in memoryUp to 200 h of HR trainingFor 1 training session
Compatible with 3rd party appsXX
Battery life12 h (rechargeable battery)400 h (replaceable battery)
Polar Pro strapX

Choose Polar H10 for…

Ultra long sessions

The rechargeable battery on the Polar OH1 lasts for approximately 12 hours. The battery on the Polar H10 lasts approximately 400 hours. Some easy math reveals that for those ultra long sessions, you should choose Polar H10.

Orthostatic test and R-R recording

You’ll need the Polar H10 for advanced features that require ECG-based heart rate readings, such as the Orthostatic Test available on Polar Vantage Vthe Polar V800 GPS sportswatch and the Polar M460 GPS cycling computer.

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.

Choose Polar OH1 if…

wearing A Sports bra with a chest strap feels uncomfortable

If you find wearing a sports bra and a chest strap cumbersome, opt for Polar OH1.

You need something to slip into Easily

Polar OH1 is easy to slip on your upper or lower arm. 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.

Both Polar H10 or Polar OH1 work for…


The Polar H10 is ideal for swimming or triathlon, using the 5kHz frequency to transmit your heart rate in the water. Also, you can store one session into the internal memory so you don’t necessarily need to wear a wrist unit at all.

Also the Polar OH1+ product package includes a swimming goggle strap clip that you can wear against your temple to measure your HR accurately while swimming. The Polar OH1 sensor has an internal memory that can store up to 200 hours of training data. Afterwards you can easily sync your data to the Polar Beat app.

connecting to fitness apps

Both Polar sensors use Bluetooth Smart to connect to your phone. Choose a sensor that fits your favorite sport – no clear winner here… except you, of course, if you choose to monitor your heart rate to get the most out of your training session.

Learn more:

Introducing the Polar OH1 optical heart rate sensor

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Please note that the information provided in the Polar Blog articles cannot replace individual advice from health professionals. Please consult your physician before starting a new fitness program.

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Optical heart rate tracking

What is optical heart rate tracking and how is it different from heart rate measured with a chest strap?

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