Polar A300
Fitness watch & activity tracker

Your body and the A300. Designed to move, and made for each other. The Polar A300 is a fitness watch and tracker that makes you move and achieve more. Track your daily activity, training and sleep.


Buy now - $138.99
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Smart Notifications

Designed for life

Pair your phone with A300 and get alerts for incoming calls, received messages and push notifications from social media apps to your wrist and stay in the know wherever you are.

Don't miss a thing

See incoming calls and texts at a glance. Answer calls using your watch or decline them when training demands it.

Keep up to date

Read messages conveniently on the A300's display even when your phone is not at hand.

Be where you need to be

A300 alerts you about the appointments on your calendar and makes sure you're always on time.

Stay social

Receive push notifications from social media apps to your wrist and stay in the know wherever you are.

A300 Features

Advanced fitness tracking

  • Smart Coaching
  • Features

Activity Guide

Shows how active you’ve been during the day and gives practical guidance for reaching your daily activity goal. More ›

Activity Benefit

Gives feedback on your daily, weekly and monthly activity, showing how your active choices help you stay healthy. More ›

Smart calories

Lets you know exactly how many calories you’ve burned. More ›

Heart rate zones

Select and monitor the intensity of your training easily with heart rate zones and follow heart rate based training programs. The default heart rate zones are based on 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).


Gives clear guidance on how to get into shape faster. Polar H7 required. More ›

Training Benefit

Motivating feedback straight after exercise. Polar H7 required.

Heart rate during training

Shows your current heart rate with the touch of a button during training. Polar H7 heart rate sensor required. More ›

Fitness Test

Polar Fitness Test measures your aerobic fitness at rest in just five minutes. The result evaluates your maximal oxygen uptake (VO2max). Fitness testing will motivate and inspire you to start, maintain or increase physical exercise. More ›

Running Program

Train for a running event with a personal and adaptive training plan in Polar Flow. Choose from four different targets, 5K, 10K, half marathon and marathon, and get a training plan that fits you and your goals. More ›

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24/7 Activity tracking

Tracks your daily activity at different intensity levels, and shows steps, distance and burned calories.

Heart rate

When paired up with Polar H7 heart rate sensor, measures your every heartbeat and lets you know if you’re mostly burning fat or improving your fitness. Gives the most accurate calorie burn in heart rate based training.

Smart Calories

Lets you know exactly how many calories you’ve burned. The individual algorithm is based on your data: weight, height, age, gender and the intensity of physical activity.

Fitness test

Tells you exactly how your fitness is progressing by measuring your aerobic fitness at rest and evaluating your maximal oxygen uptake.


Automatically tracks your sleep time and quality. See and learn from your sleeping patterns in Polar Flow web service and app.

Changeable wristbands

Vibrantly colored wristbands are easily changed to reflect your mood and style. Choose from Powder White, Charcoal Black, Sorbet Pink, Mellow Yellow, Indigo Blue and Storm Grey.

Vibrating inactivity alert

Reminds you with vibration to get up after 55 minutes of sitting and add active breaks to your daily routines.


Weight 48g
Thickness 12,7 mm


Water resistant (30 m)
Rechargeable battery
Battery life up to 4 weeks
Memory capacity up to 60 days (with daily activity tracking and 1 hour of daily training)


Easy wireless sync via Polar Flow app with Bluetooth® Smart
Custom USB connector for charging and data sync with PC or Mac via Polar FlowSync
Polar Flow web service compatibility with Mac OS X 10.6 or later and PC Windows XP, 7, 8
Updatable software
UI languages in Polar Flow: English, Spanish, Portuguese, French, Danish, Dutch, Swedish, Norwegian, German, Italian, Finnish, Polish, Russian, Chinese, Japanese

Test your fitness in just minutes

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.

Learn more

Polar Ecosystem

Polar Flow: A world of fitness

Polar Flow app

Follow your daily progress and get guidance that helps you meet your goals. Learn how your daily habits can improve your wellbeing.

Polar Flow web service

Follow your active choices on a monthly basis in Diary view, including calorie expenditure. See the progress you’re making toward a fitter you.

Polar Coach

Free online tool for your coach or personal trainer to easily follow your progress.

Sensor compatibility

Add a Polar H7 Bluetooth® Smart heart rate sensor for live, accurate heart rate on your wrist.

Made to move



Buy now - $138.99
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Support and latest updates

Update your product to take advantage of the latest features and functionalities. Get support and user manuals.

Product Support


Upgrade your performance

Upgrade your training computer to enhance your experience and achieve a more complete understanding of your performance.


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