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



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
2016.05.03Polar A300 software update with Smart Notifications and Polar Balance compatibility
2016.04.25Do you have your physical settings up to date?
2015.07.31Windows 10 compatibility with Polar products and softwares
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 4.317460317460317 out of 5 by 126.
Rated 5 out of 5 by from GREAT I Love this watch and the heart monitor. I am getting better acquainted with each day. I use it every day. It does so many things - it is a mini computer. I could go on and on.
Date published: 2016-07-22
Rated 5 out of 5 by from enjoying this product A300 I have tried a garmin, a fitbit, forerunner and no luck. POLAR is the ONLY brand that I find works with windows 8. I need to learn more about this product, but am finding it easy.
Date published: 2012-07-21
Rated 3 out of 5 by from Good, but waiting for some upgrades! PROS: I purchased this watch a little over a week ago and have been very pleased with it so far. I feel that the heart rate monitor is pretty accurate based off of my readings from many other monitors and the different levels I train at. The look is okay, better than most watches of this nature. I really like that you can easily take the face out of the band and its worked well in the water. CONS: I think the pedometer is overestimating my steps (I gained significant steps on a car ride...). I strongly dislike the fact that there are only Three Activity Levels and that I cannot manually set my steps goal per day. I may be the outlier, but as the owner of an exercise business, I meet the goals for the highest activity level within 2 hours of waking. Even if I've trained that AM and met the goal per the watch, I still want to be able to prompt myself to make sure I take 10,000 steps a day (so I don't sit in front of my computer for 5 hours a day looking at reports and accounts). With this watch, thats impossible. Spending 1 hour training meets my activity level when thats the minimum time I spend active every single day... Not really much to encourage me to step my game up.
Date published: 2016-07-19
Rated 5 out of 5 by from Polar A300 This Activity watch beats my Polar FT7 which I thought was awesome as well. I bought one for my daughter as well! Highly recommend for those keeping track. Reminders to move, notifications, pairing with My Fitness Pal...awesome!
Date published: 2016-07-12
Rated 5 out of 5 by from Perfection! Amazing! Battery life. Features. Fit. Durability. Everything!
Date published: 2016-06-28
Rated 5 out of 5 by from Great in the pool I bought this so that I can track my heart rate while swimming laps and it's been awesome with the H7 heart rate monitor.
Date published: 2016-06-25
Rated 5 out of 5 by from love the software Able to see my daily activities numbers on different grafts.
Date published: 2016-06-19
Rated 5 out of 5 by from So happy!! I love my A300. I love the ability to have 24:7 tracking. It reminds me every hour to move if I'm not already moving, which is great because I have desk job. I love that I can still use my heart rate monitor for training, but still have the benefits of tracking without it. Best birthday present that I have ever picked out for myself. :)
Date published: 2016-06-17
  • 2016-07-30T06:56CST
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