Polar A370 Review – [Complete Reviews with Comparison]


Heart Rate Functionality


Fitness Monitoring 


Ease of Use


Battery Life


Where To Get It

A Deep Dive Into Polar A370

The Polar A370 builds on the brilliant A360 (4.5/5 Star Review) adding some great new features including advanced sleep tracking, 24/7 heart rate, GPS sharing & heart rate broadcast (Bluetooth). The Polar A370 is one of the best activity trackers on the market with a high quality colour display and changeable wrist straps. This reviewof the Polar A370 has been written and prepared by Tristan Haskins aka CardioCritic.

  • Who Is It For?

  • Video Review

  • Comparison

Main Features and Functions

Product Photos (from Polar)

I will be adding my own photos of the Polar A370 once I have finished testing the watch. In the meantime, please accept these Polar marketing department photos. This one demonstrates the following

  • Polar A370 smartphone alerts
  • One of the many watch face alternatives
  • Heart Rate Zone training

Exercise Mode

In Exercise Mode you get to select the exercise that most closely reflects your training session. There are over 100 different sport profile that can be loaded in to the A370.

Les Mills Training Programs

Recently Polar added dozens of Les Mills training profiles. If you’re not familiar with the world’s most popular online training programs please visit Polar Les Mills information page.

More Features

My Day Summary

Speed & Distance while Training

Heart Rate in 5 Zones

Polar Flow APP

24/7 activity tracking

Top Alternatives

Next Model UP

If the NO CHEST STRAP option brought you to the Polar A370, Polar’s other products with wrist based heart rate is the M200 (intro level GPS running watch.

Next Model DOWN

That’s an easier question. The next model down is the Polar Loop 2. Fairly similar in activity tracking functions like steps, calories and inactivity alert, but without the built-in heart rate sensor. The Loop 2 is an attractive and discrete activity band for those looking to increase daily activity.

Similar Alternative Fitness Bands

The best alternatives with the closest functionality to the Polar A370 activity tracker would be the FitBit Charge 2 and the Garmin Vivosmart HR. The Vivosmart HR & Charge 2 feature a barometric pressure sensor that provides stairs climbed feedback not found on the A370. Both provide OFF the WRIST heart rate monitoring and 24/7 activity tracking. They are ALL very good activity trackers, they all record heart rate to a reliable and accurate level, they all give an indication of sleep duration & quality and they all motivate you to move throughout the day…

Update Oct 2017 > Garmin have just released their new Garmin Vivosport fitness tracker. Replacing the Vivosmart HR+, the Garmin Vivosport features built-in GPS, wrist based heart rate, dedicated running functions (auto-lap, pace alerts etc) a full colour display, VO2 max, Stress tests and much more. CardioCritic have awarded the Garmin Vivosport Best on Test in the Fitness Tracker category and expect it to be one of the best selling fitness trackers of 2018.

  • Garmin Vivosport Review – voted Best In Class – a sleek, discrete fitness tracker with GPS and wrist based heart rate
  • Garmin Vivosmart 3 Review – new in April 2017. Top of the range fitness tracker with VO2 Max, Fitness Age, Stress score and more
  • Garmin Vivosmart HR Review – replaced by the Vivosmart 3 (above) but still a highly recommended fitness tracker
  • Fitbit Charge 2 Review – hugely popular best selling fitness tracker of 2017 and 2018


If you’ve got this far then you’ll know by now that CardioCritic rate this Polar A370 very highly. The only feature missing found on other similarly priced fitness trackers is STEPS CLIMBED. It’s not a feature I really find that useful, but some people may have a reason for wanting it. I certainly wouldn’t allow that one omission put me off buying this 5/5 Star Review Polar A370.

Last Updated on March 28, 2019

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Polar A370
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