Polar Grit X2 Pro Titan

Polar Grit X2 Pro Titan is a rough and rugged outdoor sports watch crafted for adventure with sapphire glass AMOLED display in titanium casing, and a hi-tech toolkit of navigation and performance features for exploring the wonders of the world, and the body.

Polar Grit X2 Pro

Polar Grit X2 Pro is a rough and rugged outdoor sports watch crafted for adventure with sapphire crystal glass AMOLED display, and a hi-tech toolkit of navigation and performance features for exploring the wonders of the world, and the body.

Polar Vantage V3

An ensemble of biosensing instruments, AMOLED display, dual-frequency GPS, maps, and the most comprehensive suite of training and recovery tools on the market. The stage is set, and the Polar Vantage V3 smart sports watch is ready to put in the performance of a lifetime.

Polar Ignite 3

Polar Ignite 3 is a stylish fitness & wellness watch that helps you live a more energized life. It tracks your sleep, activity, and heart rate to provide guidance that’s tailored to your body and lifestyle.

Polar Pacer Pro

Polar Pacer Pro is an ultra-light, new-generation sports watch with integrated barometer that equips athletes with advanced tools to improve running economy, training sessions, and sports performance.

Polar Pacer

Sport is play – why complicate it? Polar Pacer is a no-nonsense sports watch that gives new athletes all the essentials, plus the specialized training tools they need to train better.

Polar Vantage V2

A powerful convergence of minimalist design, innovative technology, and intelligent training and recovery tools make Polar Vantage V2 our most formidable sportswatch to date.

Polar Grit X Pro

Built for military-level durability with sapphire glass and ultra-long battery, equipping you with new navigation tools, always-on outdoor features and Polar's ultimate training solutions.

Polar Vantage M2

Designed for function, the Polar Vantage M2 works as hard as you do. Our industry-leading technology is here to help you reach your goals and come back stronger. For that athlete attitude.

Polar Ignite 2

A fitness watch that’s sleek, simple and smart? Polar Ignite 2 is a true triple threat. Versatile and full of great features, it’s the perfect companion for any sport and any lifestyle.

Polar Ignite

A waterproof fitness watch with advanced wrist-based heart rate and integrated GPS, Polar Ignite offers you a full view of your day and guides you towards a more balanced life.

Polar Unite

A beautifully simple watch with personalized daily workout guidance, 24/7 heart rate and activity tracking, plus automatic sleep and recovery applications.

Polar Vantage M

An all-round multisport & running GPS watch for anyone who loves setting new records. Polar Vantage M is a slim, lightweight training companion that gives you all the data you need to improve your performance.

Polar Grit X

An outdoor multisport watch with rugged yet lightweight design, ultra-long battery life and military-standard durability for anyone who prefers the trails over the roads.

Polar M430

A GPS running watch with wrist-based heart rate, advanced running features and Polar Running Program, Polar M430 is a top-level watch for runners who want more.

Polar Verity Sense

When freedom of movement is important to you, Polar Verity Sense is your go-to choice for any sport.

Polar H10

Widely regarded as the gold standard in wireless heart rate monitoring, this is the most accurate sensor in Polar’s history.

Polar H9

A reliable, high-quality heart rate chest strap for all your everyday sports with Bluetooth® and ANT+ connectivity. Get connected and get going.

Polar OH1+

Polar OH1 is an optical heart rate monitor that combines versatility, comfort and simplicity. You can use it both as a standalone device and pair it with various fitness apps, sports watches and smart watches, thanks to Bluetooth® and ANT+ connectivity.


Personalize any watch for any style and any need.


Replace or upgrade your Polar Sensor chest straps or arm bands.

Power & Cables

For charging your products and data transfer.

Mounts & Adapters

Adapt your product for any situation.





Polar Grit X Outdoor Series

Made for outdoor sports and built to handle any environment nature can throw at you, Grit X watches are designed to help you explore the world and gear up for adventure.

Polar Vantage Performance Series

Our flagship series is tailored for high-performance and endurance sports and training. Every aspect of our Vantage watches are designed with one particular person in mind – the athlete.

Polar Pacer Multisport Series

The Pacer Series gives athletes all the essentials such as accurate GPS and precise heart rate tracking, plus the specialized training, sleep, and recovery tools they need to train better.

Polar Ignite Fitness & Wellness Series

Sleek, simple, and smart – Ignite watches are the perfect partner for any fitness goals and any lifestyle.

About cycling power

When you ride your bike, you apply force to your bike’s pedals to move it forward. This force and cadence constitute cycling power that you can measure with a power sensor.

Left right balance is the power distribution between your left and right leg. One of our legs tends to be stronger than the other.

Measuring your cycling power helps you to monitor and develop your cycling performance and pedaling technique. It helps you recognize what different levels of effort feel like and how effort varies in different weather conditions, just to mention a few points. 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.

You need a Kéo Power Bluetooth® Smart pedal set (there are two options: a set with two pedals and a set with one pedal), and a compatible Bluetooth Smart Ready training device, such as Polar V800 or Polar V650, in which you can see the power data from the pedals during training sessions. After sessions you can sync your data to the Polar Flow mobile app for instant analysis. Flow app syncs the data automatically to the Polar Flow web service for more detailed analysis.

Kéo Power Bluetooth® Smart measures the power directly from the pedals, separately from both legs, with eight very sensitive strain gauges on each pedal. It’s one of the most accurate and versatile power measurement devices on the market. The Kéo Power Essential Bluetooth® Smart has one pedal, and therefore measures power from one leg only.

Clipless pedals allow you to use force more efficiently and change your pedaling technique. With clipless pedals you get more control over the entire pedal stroke, whereas with regular pedals you can mostly just control the downstroke.

There are two schools on this: some cyclists prefer to use only power sensor while others use also heart rate, speed and cadence sensors. Which method you use depends on how deep you want to go: professional cyclists use both to get the maximum amount of information about their training. One of the advantages that recording your heart rate gives you is your Training Load and Recovery Status. Following it will help you avoid over and under training.

In addition to the regular values such as average heart rate, speed and cadence, there are several power-related values that give you different points of view to your session.

Normalized power takes into account the variation that naturally takes place in power during cycling. It’s different from Power avg in that it better accommodates the variation in power, and gives a better evaluation of how demanding the session was. In the result you have the following power-related values:

  • Power avg [w]: the average power in the session. Maximum power is mentioned under the average value.
  • Normalized power [w]: the normalized power of the entire session.
  • Normalized power 20 min [w]: the highest normalized power of a period of 20 minutes.
  • Normalized power 60 min [w]: the highest normalized power of a period of 60 minutes.

Over time, when you are able to produce more power, it means that your cycling performance has improved.

A fairly typical value for a recreational cyclist is 100-300 watts, depending on one’s fitness level, whereas a professional cyclist can produce around 400 watts. Professionals can also peak up to 700 watts for a short period, sometimes even a lot higher.

During your training sessions you see the pie visualizations of your left and right pedal stroke. In the V800 pie visualization, which you can see in the picture below, the dark gray area is the positive force you are using. The light gray area is the point in the pedal stroke where you use the maximum force. The black area is where you are not using any force, in other words it’s the negative force area.

Ideally, you should aim at making the positive force area larger. You can try varying your technique and seeing how that affects your positive force area.

In the example picture, the cyclist’s left leg produces 74% positive force and right leg produces 60% positive force in the pedal stroke.

It’s normal to have difference between the force values of your legs; a 50-50 left right balance is mainly theoretical. You should monitor your left right balance in the long run. First you’ll find out what your regular range is, and then you’ll be able to spot changes that are out of the ordinary.

You can aim at making the difference between your left and right leg smaller: this will most likely help your performance and help prevent strain-related injuries in the long run.

Yes they can! They are easy to set up and switch between bikes.


Hey there, sign up and get 10% off

Make sure you get your invite for our Polar family. Sign up now for our newsletter and stay on top of all our great news and offers! You will get 10% off* one purchase.

By clicking Subscribe, you agree to receive emails from Polar and confirm that you have read our Privacy Notice.

*this promotion cannot be combined with other promotions or offers.