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 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
2016.05.03Polar 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 4.3009 out of 5 by 113.
Rated 5 out of 5 by from Easy to set up and use! I bought this device/watch about 3 weeks ago. It was easy to program and synch with my laptop computer. It was highly recommended by my personal trainer!
Date published: 2016-05-20
Rated 5 out of 5 by from Everything you need I've been a polar user for 3yrs now. Loop to A300. HANDS DOWN the greatest product I've owned. PERIOD it's better than walking around with a personal trainer tracking your progress (the watch at least doesn't talk back)
Date published: 2016-05-14
Rated 5 out of 5 by from Great features!!!! I bought this a little over a week ago. And o love it. It gives all kinds of information with out having to change it
Date published: 2016-05-12
Rated 5 out of 5 by from Great Features User friendly with both the polar flow iphone app and computer app. Had it a few weeks, then downloaded the update for iphone notifications. Really nice to view text messages and caller id from the device. It has helped me stay in the "zone" for fitness and fat burn! Love that I can wear it in the water.
Date published: 2016-05-10
Rated 4 out of 5 by from Love my A300! I love my A300. It works great and is waterproof! That was my selling point. I give showers to people who are unable to care and do for themselves. I have been through so make step counters! The waterproof feature was very important to me.
Date published: 2016-05-09
Rated 5 out of 5 by from Great watch to have. I bought the A300 in march, and it has been great so far. As a Rower, having the watch be waterproof is an enormous plus. It is light on your wrist and does not get in the way. The buttons can sometimes be pressed by moving your wrist if the band is to tight. The battery lasts for about a week with smart notifications on, and 2+ weeks with it off (if you sync it with your phone daily and use the heart rate strap). The battery will last for 3 1/2 weeks without any kind of bluetooth connections. The silicone watchband gets gross with dead skin, and can break easily around sharp things but it holds up well. Having a few extra watchbands is a good investment. When I first bought this watch it didn't have smart notifications, it was just a normal activity tracker. The recent update made it better and now it is better than most fitbits and some other activity trackers on the market. I had a polar loop before this, and this is a massive step up. This activity tracker is perfect for any person trying to get in shape, stay fit, or just for a pedometer.
Date published: 2016-05-09
Rated 5 out of 5 by from Exactly what I wanted! I originally purchased the Polar loop and returned it after 1 day. I have had the FT7 but was looking for an upgrade. I LOVE my A300! All the features, everything! I like how it syncs to my phone app too. Sometimes when I am not taking steps, it still tracks them but it's because I'm getting ready for the day and moving my arms. I literally have only taken the watch off to shower. Otherwise it's been on. The one thing I wish I could change is the size. I have smaller wrists and when I put it on the notch I need, I have a little extra that sticks out. Other that that; I love it!
Date published: 2016-05-03
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
  • 2016-05-25T06:58CST
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