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Polar - A300 Activity Tracker + Heart Rate - White
Polar A300 Activity Tracker + Heart Rate: Track and improve your fitness with this Polar A300 90051951 activity tracker, which provides a training diary for following and planning your fitness goals. Heart Rate Zones help you exercise based on your maximum heart rate for increased effectiveness.

Fitness Tracker Buying Guide
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Exclusions apply including, but not limited to, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.



Normal Wear & Tear • Power Surges

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What's Included

  • A300 Activity Tracker
  • H7 Bluetooth heart rate transmitter
  • USB charging cable
  • Owner's manual

Ratings & Reviews

Overall Customer Rating:
98% of customers would recommend this product to a friend (44 out of 45)

Product Features

Fits most wrist sizes

For a comfortable feel.

Measures a variety of metrics

Such as activity levels, calories burned, steps taken, sleep quality and quantity and distance traveled to allow you to target your weak areas and improve overall health.

Activity Benefit

Provides daily, weekly and monthly feedback, so you can track your progress. The Activity Guide provides suggestions to help you meet your daily activity goal and lets you know how active you've been throughout the day.

H7 Bluetooth heart rate transmitter

Informs you of your heart rate as a percentage of your maximum rate to help maximize the effectiveness of your fitness regimen.

Up to 4 weeks of battery life

With the included rechargeable battery, which charges directly from your computer using the integrated USB connector or with the included USB cable.

Vibrating alarm

Alerts you when you have been inactive for too long to motivate you to meet your activity goals.

Polar Flow app (download required)

Syncs the tracker with your compatible Apple®, Android, HTC, Sony or LG device via Bluetooth Smart for increased functionality.

Water-resistant up to 98.4'

For use in the shower or pool.


Offers text alerts in 15 languages and shows the date and time for ease of use. Bring the tracker close to the heart rate sensor to display your heart rate.

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Overall Customer Rating

4.7 (45 Reviews)
Product images, including color, may differ from actual product appearance.