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 Titanium

Polar Ignite 3 Titanium 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 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.

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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.

How do I change the battery to my heart rate sensor?

Your heart rate sensor battery may need replacing if:

  • training computer does not show heart rate reading
  • heart rate reading is erratic or stays unchanged for a long time
  • heart symbol does not blink.

For information on possible sources for transmission interference, see Abnormal heart rate readings during the exercise.

When changing the battery of your training computer at Polar Service Center, have your heart rate sensor battery checked as well.

Sensor pairing is needed after update / battery replacement, if you use H10 or H9 with Polar Ignite, M200, M400, M430, V650, Vantage M, Vantage V or 3rd party app / device.

Average battery lifetime of a heart rate sensors can be found in the product user manual.

You can change the sensor battery yourself. If you'd like help, please contact your closest Polar Service Center to have it changed for you.

To change battery yourself, see the instruction video for H1/H9/H10 or check out your sensor user manual for instructions.

If your heart rate sensor is under warranty, we recommend that the battery be changed by a Polar Service Center.

With good care your heart rate sensor lasts longer. Washing the heart rate sensor regularly ensures reliable measurement and maximizes its life span. See here for product-specific care and maintenance instructions.

The average battery lifetime of T31C Transmitter is 2500 hours of use.

When the battery dies, you will need to replace the whole heart rate sensor (structure of the transmitter is sealed).

With good care your T31C Transmitter will last longer. Washing the heart rate sensor regularly and never storing it wet ensures reliable measurement and maximizes its life span. See here for detailed care and maintenance instructions.

Do not dispose of this product as unsorted municipal waste. To minimize possible effects of waste on the environment, please follow local waste disposal regulations and, where possible, utilize separate collection of electronic devices.

Further reading

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