Polar RS300X

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Smart Coaching Features
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In the box

At a glance

For recreational athletes who require all essential heart rate and timing features.

Helps you train at the right intensity with personal sport zones
The Polar Fitness test measures your aerobic fitness at rest and tells you your progress
Displays calories burned

›Smart Coaching Features

Fitness Test
Tells you exactly how your fitness is developing.
OwnZone
Guides you to train at the right intensity.
Smart Calories
Lets you know exactly how many calories you’ve burned.
Training Load
Helps you find the perfect balance between rest and training.

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› RS300X Smart Coaching Features

Fitness Test
Tells you exactly how your fitness is developing.
If you’re looking to improve your fitness and want to keep up to date with how well you’re doing, the smart Fitness Test will tell you exactly what you need to know in just five minutes. By regularly comparing your test results, you can see what progress you are making and how your fitness is improving.
How fit am I compared to the population
OwnZone
Guides you to train at the right intensity.
Knowing the right intensity to improve your fitness can be a challenge. OwnZone adjusts your heart rate training zone to perfectly match your body’s current physiological condition. By using OwnZone, you can be sure you’re training at an intensity that improves your aerobic fitness.
Smart Calories
Lets you know exactly how many calories you’ve burned.
OwnCal is the most accurate calorie counter on the market. It calculates the number of calories expended during a training session based on your weight, height, age, gender, your individual maximum heart rate (HRmax) and how hard you’re training.
Tip for using OwnCal feature
Training Load
Helps you find the perfect balance between rest and training.
Training Load helps you to find the perfect balance between rest and training. Find out your training load status at polarpersonaltrainer.com. It shows you at a glance your daily cumulative training load and advises if and when rest days are needed and when it’s best to train harder in order to maintain your performance improvement.

Body measurement features

Automatic age-based target zone – bpm / %
To help you train safely and effectively, the training computer determines your heart rate target zone limits automatically according to your age-based maximum heart rate (220 minus age). The limits are determined either in beats per minute (bpm), as a percentage (%) of your maximum heart rate, or as a heart rate reserve (% HRR). See also Maximal oxygen uptake (VO2max) and Manual target zone.
Average and maximum heart rate of each lap
Average and maximum heart rate of training
Heart rate – bpm / %
Heart rate is the measurement of the work your heart does. Heart rate can be expressed as the number of beats per minute (bpm) or as a percentage (%) of your maximum heart rate.
HR-based target zones with visual and audible alarm
You can define your target zones for a training session based on heart rate to help define the right intensity. When you are out of the preset zones, the training computer will give a visual and audible alarm.
HRmax (age-based)
The highest number of heart beats per minute (bpm) during maximum physical exertion. For a rough estimate of your maximum heart rate, subtract your age from 220. HRmax is a useful tool for determining the intensity of training as intensity zones can be defined using HRmax. Some Polar products define maximum heart rate during the Polar Fitness Test, see also HRmax (Polar Fitness Test -based).
HRmax (user set)
Manual target zone – bpm / %
This feature enables you to define the target zone as you want and is suitable for your training. You can set the target zone for your training as beats per minute (bpm), as a percentage of your maximum heart rate, or as a percentage of your heart rate reserve (HRR%).
Polar Fitness Test
Polar Fitness Test measures your aerobic fitness at rest in just five minutes. The result, Polar OwnIndex, evaluates your maximal oxygen uptake (VO2max). With the Polar Fitness Test you can measure your aerobic fitness by yourself, automatically and without any exertion. All you need is your training computer. The Polar Fitness Test is as accurate in predicting the VO2max as any sub maximal fitness test. The test is based on heart rate and heart rate variability at rest and personal information.
Polar OwnCal® – calorie expenditure
Polar OwnCal calculates the number of kilocalories expended during training. This feature allows you to follow the kilocalories expended during one training session and cumulative kilocalories expended during several training sessions. Some Polar products also estimate the fat-burning percentage (fat% on display), that is, kilocalories expended from fat during a workout which is expressed as a percentage of the total kilocalories burned.
Polar OwnCode® (5kHz) – coded transmission
Coded heart rate transmission automatically locks in a code to transmit your heart rate to the training computer. The training computer picks up your heart rate from your transmitter only. Coding prevents interference from other training computers.
Polar OwnZone® – personal heart rate zone
Polar OwnZone® determines your personal heart rate limits for a training session. Depending on the day and time, your physical state may vary, for instance, if you are stressed or tired, or if you are not fully recovered from your latest training session, Polar can determine that information from your heart rate and guide you to your ideal training zone for that moment.
Polar sport zones
Polar sport zones provide an easy way to select and monitor the intensity of your training and to follow sport zones based training programs. Training is divided into five zones based on percentages of your maximum heart rate: very light (50-60%HRmax), light (60-70%HRmax), moderate (70-80%HRmax), hard (80-90%HRmax) and maximum (90-100%HRmax).

Data transfer

G1 GPS sensor features

Polarpersonaltrainer.com features

Recording features

Training features

Watch features

S1 footpod features

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View all compatible accessories

Customize

With accessories you can upgrade your training computer to enhance your experience and achieve a more complete understanding of your performance

Do you run or go jogging regularly?
Measure your running speed, pace and distance by attaching the S1 foot pod to your shoelace.
Are you training outdoors?
Measure your speed, pace and distance in various outdoor sports with the G1 GPS sensor.
Do you want to keep track of your training?
With Polar FlowLink®, you can transfer your training files into your online training diary at polarpersonaltrainer.com

View all training computers

RS300X

Speed, Distance, and Heart Rate

At a glance

›Smart Coaching Features

Fitness Test

OwnZone

Smart Calories

Training Load

› Images

› Videos

› RS300X Smart Coaching Features

Fitness Test

OwnZone

Smart Calories

Training Load

Customize

Do you run or go jogging regularly?

Are you training outdoors?

Do you want to keep track of your training?

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