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.

The what and how of Running Index

If you’re looking to keep on top of your running performance you’ll find this feature a big help. Regular use over time allows you to see how efficient your running is. Your Running Index score is calculated automatically after every run, based on your heart rate and from the speed data collected via GPS or stride sensor. A higher reading indicates that you can run faster with less effort.

Running Index gives you valuable information about your maximal aerobic running performance. The calculation is based on heart rate and speed data measured during a run. It's calculated every time you do a running exercise that's longer than 12 minutes, where heart rate is recorded and your speed remains above 6 km/h / 3.7 mph.

Whether you’re training for a specific goal or just running to keep fit and healthy, seeing progress is usually what keeps us motivated. With the Running Index report in Flow web service you can easily monitor your progress and see how your running performance develops over time.

You may also find it interesting to compare your Running Index value to gender and age related aerobic fitness norms. At a population level, aerobic fitness declines with aging, and men generally speaking have better physical attributes for running than women. Comparing your Running Index value with others will give you an idea of your own running fitness level – whether you’re fitter than average in your age group, or if you have some work cut out for you.

Calculation begins when you start recording and you have the necessary GPS or Stride sensors in use. The prerequisites for calculation are that your speed remains above 6 km/h and that the run lasts for at least 12 minutes. Although speed is a prerequisite for the calculation, the algorithm does however take natural, unavoidable pauses in your run into consideration. It allows you to stop running or slow down for a minute twice during training, in traffic lights, for example, without disturbing the calculation. In order to get reliable and therefore useful estimations on race times and your progress it’s essential to set your personal maximal* and resting heart rate** values as accurately as possible in the Physical settings in Flow web service.

* The highest number of heartbeats per minute (bpm) you can achieve in all-out effort.
** The lowest number of heartbeats per minute (bpm) at complete rest.

Before you start analyzing your progress, make sure you have set your maximum heart rate and resting heart rate values in the Flow web service to get as accurate analysis of your performance as possible.

Every time you do a running exercise, you get a numerical Running Index value. A higher value indicates better running performance, and changes in your Running Index average tells you whether you’re gaining or losing running fitness. You should bear in mind that the long term analysis of your Running Index in the Flow web service takes into account a weighted average of four weeks, with emphasis on the last two weeks. Variation on a day-to-day basis can be affected by all factors that have an effect on the relationship between heart rate and running speed. These factors can be environmental factors such as heat, altitude, air resistance, terrain, and running surface; external factors such as clothing, shoes, calibration of a stride sensor; and internal factors such as training status, mood or dehydration.

To compare your running fitness with people of the same age and gender, you can use the following chart.

Men

Age / YearsVery lowLowFairModerateGoodVery goodElite
20-24< 3232-3738-4344-5051-5657-62> 62
25-29< 3131-3536-4243-4849-5354-59> 59
30-34< 2929-3435-4041-4546-5152-56> 56
35-39< 2828-3233-3839-4344-4849-54> 54
40-44< 2626-3132-3536-4142-4647-51> 51
45-49< 2525-2930-3435-3940-4344-48> 48
50-54< 2424-2728-3233-3637-4142-46> 46
55-59< 2222-2627-3031-3435-3940-43> 43
60-65< 2121-2425-2829-3233-3637-40> 40

Women

Age / YearsVery lowLowFairModerateGoodVery goodElite
20-24< 2727-3132-3637-4142-4647-51> 51
25-29< 2626-3031-3536-4041-4445-49> 49
30-34< 2525-2930-3334-3738-4243-46> 46
35-39< 2424-2728-3132-3536-4041-44> 44
40-44< 2222-2526-2930-3334-3738-41> 41
45-49< 2121-2324-2728-3132-3536-38> 38
50-54< 1919-2223-2526-2930-3233-36> 36
55-59< 1818-2021-2324-2728-3031-33> 33
60-65< 1616-1819-2122-2425-2728-30> 30

The classification is based on a study by Shvartz & Reibold (1990). Laboratory measured VO2max values have been collected from adults in USA, Canada and 7 European countries.

The Running Index report in Flow web service is a tool to help you monitor your long term Running Index development, and estimate your success in running for example 10K or a half marathon.

Each grey dot on the graph represents a Running Index value for a specific session on a specific day. The moving average line in blue demonstrates your Running Index trend, in other words your average Running Index, and this is what you should focus on when analyzing your progress – whether the trend on the graph is pointing up or down.

The progress chart shows your latest Running Index average and an estimate of your performance on certain distances based on that average. It also shows the progress you’ve made between the starting date of your chosen time period and where you are now. Individual sessions of the selected period are listed in the session list, where you can see your Running Index for a particular session.

Running Index factors together maximal oxygen uptake (VO2max) and running economy and it’s a good predictor of race performance in endurance running. You can use it to predict how fast you could run, for example, a distance of 5K or 10K.

Although you can quite reliably predict your performance using Running Index, you should not forget the importance of other factors such as good preparation, optimal running conditions, and determination - we are all human after all.

Maximal aerobic running fitness is typically measured during a graded exercise test until the voluntary maximum is reached. Special equipment is used to measure oxygen uptake based on inhaled and exhaled air. During the graded exercise test, maximal oxygen uptake (VO2max) is reached when oxygen uptake no longer increases with increasing exercise intensity. Maximal aerobic running speed refers to the running speed at which VO2max occurs.

Running Index applies the essentially linear relationship between heart rate and oxygen uptake during increasing running speed at submaximal speeds. When both resting heart rate and maximal heart rate are known, maximal aerobic running performance can be estimated based on heart rate and speed measured during exercise.

The relationship between running speed and heart rate changes when you gain or lose fitness. When you gain fitness, your heart rate typically decreases at any given submaximal speed, and similarly when you lose fitness, your heart rate typically increases at any given submaximal speed. Running Index takes advantage of this well-known phenomenon and allows you to easily monitor changes in your running performance.

Running Index is available on the Polar Beat mobile app when you use it with a compatible Polar heart rate sensor. After a running session you'll see your Running Index in the training result.

Polar Beat gets the speed and distance using the phone's GPS. When using Polar Stride Sensor Bluetooth Smart to record speed and distance, make sure you select a sport setting in Beat that supports the stride sensor. Currently Stride sensor support is only available on iOS.

Polar Beat calculates Running Index during every training session where heart rate and GPS signals are recorded, and when:

  • Your running pace is at least 6 km/h / 3.7 mph or faster
  • Training duration is minimum of 12 minutes
  • Heart rate is above 30% of your HRRvalue.
  • If you use a stride sensor for speed measurement, the stride sensor must be calibrated.

Running Index is calculated during every training session when heart rate and the GPS function is on / Stride Sensor Bluetooth® Smart is in use, and when the following requirements apply:

  • Sport profile used is a running type sport (Running, Road Running, Trail running etc.)
  • Pace should be 6 km/h / 3.7 mph or faster and duration 12 minutes minimum.
  • If you use a stride sensor for speed measurement, the stride sensor must be calibrated.

Calculation begins when you start recording the session. During a session, you may stop twice, for example, at traffic lights without interrupting the calculation. After your session, the M400 displays a Running Index value and stores the result in the training summary.

Running Index is calculated during every training session when heart rate and the GPS function is on / Stride Sensor Bluetooth® Smart is in use, and when the following requirements apply:

  • Sport profile used is a running type sport (Running, Road Running, Trail running etc.)
  • Pace should be 6 km/h / 3.7 mph or faster and duration 12 minutes minimum.
  • If you use GPS for speed measurement, you must have GPS set to High Accuracy.
  • If you use a stride sensor for speed measurement, the stride sensor must be calibrated.

Calculation begins when you start recording the session. During a session, you may stop twice, for example, at traffic lights without interrupting the calculation. After your session, the M430 displays a Running Index value and stores the result in the training summary.

Running Index is calculated during every training session when heart rate and the GPS function is on and when the following requirements apply:

  • Sport profile used is a running type sport (Running, Road Running, Trail running etc.)
  • Pace should be 6 km/h / 3.7 mph or faster and duration 12 minutes minimum.

Calculation begins when you start recording the session. During a session, you may stop twice, for example, at traffic lights without interrupting the calculation. After your session, the Pacer/Vantage M/Vantage M2 displays a Running Index value and stores the result in the training summary.

Running Index is calculated during every training session when heart rate and the GPS function is on and when the following requirements apply:

  • Sport profile used is a running type sport (Running, Road Running, Trail running etc.)
  • Pace should be 6 km/h / 3.7 mph or faster and duration 12 minutes minimum.

Calculation begins when you start recording the session. During a session, you may stop twice, for example, at traffic lights without interrupting the calculation. After your session, the Grit X/Grit X Pro/Grit X2 Pro/Pacer Pro/Vantage V/Vantage V2/Vantage V3 displays a Running Index value and stores the result in the training summary.

Running Index takes the effect of terrain into account. At a given pace, running uphill is physiologically more stressful than running on a level surface, and running downhill is physiologically less stressful than running on a level surface. Please note that altitude data must be available for uphills and downhills to be taken into account. Altitude data is gathered by the barometer.

Running Index is calculated during every training session when heart rate and the GPS function is on and when the following requirements apply:

  • Sport profile used is a running type sport (Running, Road Running, Trail running etc.)
  • Pace should be 6 km/h / 3.7 mph or faster and duration 12 minutes minimum.

Calculation begins when you start recording the session. During a session, you may stop twice, for example, at traffic lights without interrupting the calculation. After your session, your Ignite displays a Running Index value and stores the result in the training summary.

Further reading

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