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.

Troubleshooting Polar Sleep Plus Stages™

The sleep tracking in your Polar watch is fully automatic. The Sleep Plus Stages measurement is based on recording the movements of your non-dominant hand with a built-in 3D acceleration sensor and recording your heart’s beat-to-beat interval data from your wrist with an optical heart rate sensor. Continuous heart rate tracking needs to be enabled for Sleep Plus Stages to function.

Although we, and others, have found the Sleep Plus Stages algorithm pretty accurate, it's important to acknowledge the challenges of the automatic sleep detection technology. It’s possible that your watch will not be able to properly recognize your sleep every night, or that the detected times you've fallen asleep or woken up sometimes differ from your perceived sleep times. Within this document, we’ll explain why this can happen and what the challenges of automatic sleep detection are.

The Polar Sleep Plus Stages feature has been developed for tracking healthy sleep. The metrics measured can help you better understand your sleep habits, and through that, find ways to optimize your sleep. The feature is not intended for use in the diagnosis or treatment of sleep disorders or other related conditions.

If your Sleep Plus Stages metrics are missing it means that the Sleep Plus Stages calculation has failed. This can be due to one or more of the following reasons:

  • Continuous heart rate tracking needs to be enabled for Sleep Plus Stages to function. To enable Continuous HR tracking go to Settings > General Settings > Continuous HR tracking and select On or Night-time only.
  • Make sure that you wear your watch correctly. Tighten the wristband firmly around your wrist. The sensor on the back of the watch must be in constant touch with your skin. For more detailed wearing instructions, see The what and how of Polar's wrist-based heart rate measurement.
  • You slept less than 4 hours. Your sleep time, in other words the duration between when you fell asleep and woke up must be at least 4 hours to get Sleep Plus Stages metrics.
  • Your watch detected less than 4 hours of sleep, even though you actually slept longer than that. The automatic sleep detection may be challenging on nights when you are very restless and move a lot during your sleep, and therefore the data may be less accurate. The Sleep Plus Stages calculation may fail, for example, if the detected time you’ve fallen asleep is later than the actual time and/or the detected time you’ve woken up is earlier than the actual time, and as a result, the length of sleep detected may be insufficient for Sleep Plus Stages calculation.
  • Automatic sleep detection is based on the fact that there is at least some movement during sleep, and as mentioned earlier, the sleep detection in your watch is based on recording the movements of your hand. If you are very still for long periods of time, it may be challenging for your device to ascertain that it is being worn. This might lead to inaccurate and insufficient sleep data in certain cases.
  • Taking the device off immediately after waking up, or putting it on only for bed may confuse the Sleep Plus Stages calculation.

If the Continuous heart rate tracking is not enabled on your watch, you won't get the full sleep feedback. Sleep score, feedback on sleep themes (amount, solidity and regeneration) and sleep stages information can't be recorded if the Continous heart rate tracking is disabled. However, you’ll get basic sleep data that includes sleep time, interruptions, actual sleep and the continuity of your sleep.

If the detected time you've fallen asleep or woken up seems inaccurate, please check the following for possible reasons for inaccurate results.

  • If you are very restless and move a lot during the start of your sleep, it may be challenging for your Polar watch to recognize when you fall asleep, and therefore the detected time you’ve fallen to sleep may be later than the actual time.
  • If you are very restless and move a lot during the end of your sleep, your Polar watch may mistakenly detect that you’re awake when you’re actually still asleep, and therefore the detected time you’ve woken up may be earlier than the actual time.
  • If you’re lying relatively motionless but not asleep for long periods of time before falling asleep or getting up in the morning (for example, while reading a book or watching TV), your Polar watch may have trouble determining whether you are awake or sleeping, and it’s possible for your Polar watch to falsely record sleep.
  • If you’ve not worn the product for a while and you put it onto your wrist just before you go to bed, the device may not have enough data to ascertain that it is being worn. Try wearing your Polar watch well in advance (about an hour and a half) of going to bed.
  • If you disagree with the detected times you've fallen to sleep or woken up, you can manually edit the times in the Flow app to better reflect your time asleep

Try if resetting the device to factory settings would help. Running factory settings removes all personal data and settings from the device. You will need to set it up again for your personal use. All data that you have previously synced from your Polar device to your Flow account is safe. After reset you get sleep stages information (light sleep, deep sleep, REM sleep) and sleep score after one night, including feedback on themes (amount, solidity and regeneration). After third night, you get comparison to your usual level.

For instructions on resetting your Polar Ignite, Polar Ignite 3, Polar Grit X, Polar Grit X Pro, Polar Grit X2 Pro, Polar Unite, Polar Vantage M, Polar Vantage M2, Polar Vantage V, Polar Vantage V2 or Polar Vantage V3, follow the links below.

How do I reset the Ignite? (User manual)

How do I reset the Ignite 3? (User manual)

How do I reset Polar Unite? (User manual)

How do I reset the Grit X/Pacer/Vantage?

Further reading


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