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 - $99.95
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A300 Features

Advanced fitness tracking

  • Smart Coaching
  • Features
  • Specs

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 right after exercise. Polar H7 required. More ›

Heart rate during training

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

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 ›

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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 with the Polar H7 heart rate sensor, it 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 the 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 helps you to add active breaks to your daily routine.


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 from the official Polar webstore or find retailer



Buy Now - $99.95
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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.

Updates See all
2016.04.25Do you have your physical settings up to date?
2015.07.31Windows 10 compatibility with Polar products and softwares
2015.05.06A300 software update
Product Support


Upgrade your performance

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

A300 is rated 4.2642 out of 5 by 106.
Rated 5 out of 5 by from Just the features that I needed I purchased the A300 to replace my E600 that had died. I do my workouts based om my Heart Rate and I am blown away by the ability to see the EKG-style print out of my heart rate during the workout. Plus, the feature that tracks my sleep has been awesome. Looking forward to learning about what else my A300 can do for me.
Date published: 2016-04-23
Rated 5 out of 5 by from Love this device!!! Hi I bought the A300 polar watch 6 months ago. All I have to say it was the best decision I have ever made! I love it!! It is so accurate with calories burned in the day including my steps. I wanted to see how many Calories I was burning in a days of work because I am a hairdresse. I am always on my feet. I love how it tracks my sleep patterns too!!! Also they have different colored bands so fashionable!!!
Date published: 2016-04-21
Rated 4 out of 5 by from Options great for what I need Features included on the A300 are just what I was looking for. I have been using it for about two weeks. It took a couple of days to get used to how to set it for different workouts, but I quickly figured it out. The only drawback is the band does not come in sizes; I have a small wrist so the band is too long. But since the holes in the band go all the way around, I am able to wear it as tight as I need.
Date published: 2016-04-16
Rated 5 out of 5 by from Love it!!! I bought this for myself about 6 months back and have been very happy with it ever since. I only just recently started using the alarm feature and have to say I'm very happy it. Overall it's exactly what I have come to expect from Polar - excellent product that pushes me to work out!
Date published: 2016-04-13
Rated 5 out of 5 by from Love it Super accurate with how many calories I'm burning, easy to use, and its comfortable. Only thing I dont like is that it's too bulky and sometimes gets in the way of my daily movement. Overall it's great!
Date published: 2016-04-09
Rated 5 out of 5 by from Love my watch!!! Got this as a Christmas present. Love it! I like how easy it is to use. Love how my progress is shown both in the app and on my computer. I had the F7, which I also loved, but before buying the A300 I looked around at other brands. When it comes to information and accuracy there is none better than polar products. Also, I did not understand something when using the watch. Your support people are very helpful and patient. Also, your manual is well laid out and easy to follow.
Date published: 2016-04-07
Rated 5 out of 5 by from Details Matter I bought this because my Doctor recommended a HR monitor with a band for REAL accurate performance tracking. I'm not an athlete. I started working out 2 years ago after a pretty crazy and sedentary decade. This is a great informative tool for tracking your overall health. It works with other apps for tracking food/diet. Pretty seamless. It's a bit on the bulky sideband took some getting used to while sleeping. You also have to wear it 21 days (not including sleep time) for it to give you an overall picture. I love the sleep monitoring...I actually get more than I thought! I guess as I improve my fitness it will tell me when to move up to a higher tracking level.
Date published: 2016-04-06
Rated 1 out of 5 by from love the watch but HR monitor already died I LOVE this product, however, I have had it since March 8th and the HR monitor has already died... When the watch worked, it was amazing! I loved seeing the cals burned and the time spent doing cardio (carb burning exercises) vs strength (fat burning exercises) I want to give a 5 star review but if I can't get a replacement and/or fix to this, then I can't :(
Date published: 2016-04-05
  • 2016-04-30T07:00CST
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