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 V

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

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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.

The what and how of Orthostatic test

Orthostatic test is a generally used tool for monitoring the balance between training and recovery. It is based on the training-induced changes in the function of your autonomic nervous system. Orthostatic test results are affected by several external factors, such as mental stress, sleep, latent illness, environmental changes (temperature, altitude), and others. Long term follow-up helps you to optimize your training and prevent overtraining.

Orthostatic test is based on the measurement of heart rate and heart rate variability. Changes in heart rate and heart rate variability reflect the changes in autonomic regulation of the cardiovascular system. The test measures beat to beat heart rate, in other words RR intervals.

It helps you to avoid overtraining. Heart rate and heart rate variability measured during orthostatic test are good indicators of disturbances in the autonomic nervous system, which often occur due to fatigue or overtraining. However, heart rate responses to fatigue and overtraining are always individual. They require long term follow-up, and first of all you need to make the test six times to build a reliable baseline.

As soon as you’ve made your six baseline tests, you can start following your test results regularly. Orthostatic test is meant to be used continuously, so you can include it in your morning schedule. Note that with orthostatic test you can’t compare your results to your friends’ results: they are individual and apply for you only.

When you start using the orthostatic test, six baseline tests should be conducted over a period of two weeks to determine your personal baseline value. These baseline tests should be made during two typical basic training weeks, not during heavy training weeks. The baseline tests should include tests taken both after training days and after recovery days.

After the baseline tests, you should continue to perform the test 2-3 times a week. Test yourself weekly in the morning following both a recovery day and a heavy training day (or a series of heavy training days). An optional third test can be performed after a normal training day. The test may not provide reliable information during detraining or in a very irregular training period. If you take a break from exercise for 14 days or longer, you should consider resetting your long-term averages and perform the baseline tests again

The test should always be taken in standardized/similar conditions in order to get the most reliable results. It is recommended that you take the test in the morning before breakfast. The following basic requirements apply:

  • Wear the heart rate sensor.
  • You should be relaxed and calm.
  • You can be seated in a relaxed position or lying in bed. The position should always be the same when you do the test.
  • There should be no disturbing noises (for example, television, radio or telephone) or other people talking to you.
  • It is recommended to perform the test regularly and at the same time of day in the morning after waking up to get comparable test results.

From every orthostatic test that you perform, you get heart rate results and heart rate variability results. HR REST and RMSSD REST are your heart rate and heart rate variability when lying down. HR STAND and RMSSD STAND are your heart rate and heart rate variability when standing still. HR PEAK is the one highest heartbeat that occurs after you stand up. After your first test you start building your heart rate averages, on the lower part of the result view in Flow web service, that are automatically updated after each test.

Note that in heart rate results HR REST and HR STAND are average values. That’s why you may find lower transient values on the curve.

As your training season progresses, you can follow the effect of an increased training load on your heart rate results by monitoring the difference between your averages and results. In the result you can see your newest peak, stand and rest values and how much they differ from your average values. If one or more of your results persistently falls below or rises above your averages and doesn’t normalize during your recovery weeks when your training load is lower, it’s possible that you are developing an overtraining syndrome. Don’t forget that your heart rate is only one indicator of overtraining. You should always monitor other changes as well, such as changes in performance and general feelings of fatigue.

It may also be a good idea to occasionally have an expert look at your values, especially in case you think you might be overtrained.

Even in scientific literature there is debate and continuous investigation about the best indicators of overtraining. There are different stages in training-induced fatigue that are generally classified based on how long it takes to recover. The challenge of interpreting your orthostatic test results is that your heart rate and heart rate variability responses to training may change according to the stage of fatigue, be due to other factors such as stress or illness, and be different from those of your friends. This is why you'll need to learn how your training affects your own orthostatic test results. It may also be a good idea to occasionally have an expert look at your values.

Further reading


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