Compatible sensors

Enhance your training experience, and achieve a more complete understanding of your performance with compatible Bluetooth® sensors. In addition to a number of Polar sensors your watch is fully compatible with several third-party sensors.

View a full list of compatible Polar sensors and accessories

View compatible third-party cycling sensors / running sensor

Before taking a new sensor into use, it has to be paired with your watch. Pairing only takes a few seconds, and ensures that your watch receives signals from your sensors only, and allows disturbance-free training in a group. Before entering an event or race, make sure that you do the pairing at home to prevent interference due to data transmission. For instructions, see Pairing sensors with your watch.

Polar H10 Heart Rate Sensor

Monitor your heart rate with maximum precision with the Polar H10 heart rate sensor with a chest strap.

Although the Polar Precision Prime is the most accurate optical heart rate measurement technology there is and works pretty much anywhere, in sports where it's more challenging to keep the sensor stationary on your wrist or where you have pressure or movement in muscles or tendons near the sensor, the Polar 10 heart rate sensor gives you the best heart rate accuracy. The Polar H10 heart rate sensor is more responsive to rapidly increasing or decreasing heart rate, so it’s the ideal option also for interval type of training with quick sprints.

The Polar H10 heart rate sensor has an internal memory that allows you to record one training session with it without a connected training device or a mobile training app close by. You just need to pair the H10 heart rate sensor with the Polar Beat app and start the training session with the app. This way, you can for example record your heart rate from your swimming sessions with the Polar H10 heart rate sensor. For more information see the support pages for Polar Beat and Polar H10 heart rate sensor.

When using the Polar H10 heart rate sensor during your cycling sessions, you can have your watch mounted to your bike’s handlebars to easily view your training data while riding.

Polar Verity Sense

Polar Verity Sense is a versatile high-quality optical heart rate sensor that measures heart rate from your arm or temple. Polar Verity Sense is a great alternative to heart rate chest straps and wrist-based devices. You can use it with the product's armband, swimming goggle strap clip or just place it anywhere snug and firm against your skin. Polar Verity Sense allows maximum freedom of movement and works in countless different sports. As a highlight, Polar Verity Sense records heart rate, distance, pace and turns when you swim in the pool. You can record your workouts in the sensor's internal memory and transfer workout data to your phone afterwards or you can connect the sensor with your watch and follow your heart rate in real time during your workout.

Polar Stride Sensor Bluetooth® Smart

The Stride Sensor Bluetooth® Smart is for runners who want to improve their technique and performance. It allows you to see speed and distance information, whether you are running on a treadmill or on the muddiest trail.

  • Measures each stride you take to show running speed and distance
  • Helps improve your running technique by showing your running cadence and stride length
  • Small sensor fits firmly onto your shoelaces
  • Shock and water resistant, to handle even the most demanding runs

Polar Speed sensor Bluetooth® Smart

There are a range of factors that can affect your cycling speed. Obviously fitness is one of them, however, weather conditions and the varying gradients of the road play a huge part too. The most advanced way of measuring how these factors affect your performance speed is with the aerodynamic speed sensor.

  • Measures your current, average and maximum speeds
  • Track your average speed to see your progress and performance improve
  • Light yet tough, and easy to attach

Polar Cadence Sensor Bluetooth® Smart

The most practical way of measuring your cycling session is with our advanced wireless cadence sensor. It measures your real-time, average and maximum cycling cadence as revolutions per minute so you can compare the technique of your ride against previous rides.

  • Improves your cycling technique and identifies your optimal cadence
  • Interference-free cadence data lets you evaluate your individual performance
  • Designed to be aerodynamic and light

Third-party Power sensors

The watch measures your power data during your running or cycling sessions if you pair the watch with a separate running power sensor or cycling power sensor. You can choose the power data you want to view during your sessions by customizing the training views in the Flow web service sport profile settings. The Training Load Pro feature uses the power data to calculate Muscle Load, so you will also get a Muscle Load value for your running or cycling sessions when using a separate running or cycling power sensor.

Running Power

Running Power is a great tool to measure the external load of your running. It reacts faster than heart rate so it’s ideal for measuring your load for uphill running and interval sessions. You can also use it to maintain a steady effort level during your run even in varying terrain. Running Power complements heart rate measurement: when you measure both you can detect changes in your running performance. If after weeks of training you can produce the same power with lower heart rate, your running performance has improved.

Learn more about Running Power in this in-depth guide.

Cycling Power

Measuring your cycling power helps you to monitor and develop your cycling performance and pedaling technique. Unlike heart rate, power output is an absolute and objective value of effort. This means that you can also compare your power values with your fellow cyclists who are of the same sex and about the same size as you are; or compare watts per kilogram for the most reliable results. Seeing how your heart rate corresponds to the power zones also gives more insight.