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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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
  • 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 ›

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 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

Webstore available in selected countries



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
2016.09.29Polar Flow web service update - Running Program enhancements and bug fixes
2016.09.02Polar Flow App for iOS with Les Mills sport profiles
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 4.302816901408451 out of 5 by 142.
Rated 2 out of 5 by from Great if it works My husband purchased watch for me as a Christmas present last year and in March the strap battery stopped working. I contacted the company (after finally getting through to a live person) and she said she would email me the documentation to mail it in to have the battery replaced.. Never got the email and have not used the watch since ( the purpose was to use the heart rate monitor). I took it to two jewelers to see if they could change it, but of course they couldn't open the back to even see the battery. I am do disappointed in this product and will likely be purchasing a fitbit.
Date published: 2016-09-22
Rated 4 out of 5 by from Outstanding Purchased about a year ago to replace my F7 and have been using it since. Love the sorbet pink band. Unfortunately, so does my puppy. It is slightly stretched so the unit pops out every now and then. I find the HR recording of my activities close to accurate and is half the amt recorded on the machines I use (which I believe is more accurate). I have to purchase a new HR monitor since the old one requires me to send it back to a Polar approved dealership. I love the USB charger, but every now and then it fails to recharge when connected directly to an electric outlet versus a computer.
Date published: 2016-09-20
Rated 5 out of 5 by from Everything I've been searching for and more! I love the functionality and versatility of this piece. It far exceeds my expectations for a fitness tracker. It's durable, washes well, and holds up under pressure. The alarm and inactivity notifications have been a lifesaver. Thank you, Polar, for making such an excellent product at a wonderful price!
Date published: 2016-09-08
Rated 5 out of 5 by from battery life, simple design, notification, don't know what else i can ask for!! make a update version with better display please Polar.
Date published: 2016-09-04
Rated 5 out of 5 by from Great 24/7 watch I bought this watch about 6 months ago. Features that attracted me to it: Time/date on the main screen, stopwatch during the exercises, 24/7 wear, long battery life (I only charge mine every 25-30 days), changeable band color, easy assess to app on phone and computer, and waterproof. If these are the things you are what you are looking for in a watch, this is the one to get!
Date published: 2016-09-04
Rated 5 out of 5 by from Accurate HR readings! I bought the A300 to update my "old" polar. LOVE all the great features especially the accurate HR monitor. I have a year old pacemaker which we are "tweaking" and need an accurate HR check. (My Fitbit was NOT accurate, off by 20 points at least.) I get useful information as to how hard I worked out and the activity tracker is awesome to keep you moving! You also have access to your history right on the watch. I am a very active person so I wear the A300 daily with small interruptions to charging and updating. LOVE that I can wear it swimming too!
Date published: 2016-09-01
Rated 4 out of 5 by from Works well! Upgraded from a 5 year old Polar HR monitor. I love the new features, especially the sleep analysis and the charting of daily workouts. I like the reminder to get moving. The fitness test is a neat feature, though when my result came back as "Elite" I wondered how accurate it is! It's nice to have an alarm and be able to illuminate the time during the night. The only complaint is it's a little bulky which may be a problem in the winter while wearing long sleeves...
Date published: 2016-09-01
Rated 5 out of 5 by from Best of the bunch I've used three fitness trackers and two heart rate monitors in the past and the A300 is the best of the bunch. Easy to learn, long battery life between recharges, and the strap/sensor is the most comfortable I've found. Also syncs well with my phone. Going to by a second one for my girlfriend as her fitbit isn't nearly as accurate or comfortable.
Date published: 2016-08-31
  • 2016-10-08T07:09CST
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