Polar A370 fitness tracker with continuous heart rate

Fitness and cross-training

Polar A370 Fitness Tracker with 24/7 Wrist-Based Heart Rate and Connected GPS

Offering personalized activity and exercise guidance, the waterproof Polar A370 now integrates continuous heart rate and fitness tracking with our all-new Sleep Plus analysis and phone-assisted GPS. It’s your all day companion, now even more versatile.

Find the balance: be active, have a rest and enjoy.

Buy now - $179.95
Watch video

Order Polar A370 and get a free extra wristband in the color of your choice.

Order Polar A370 and get a free extra wristband in the color of your choice.
Add an A370 Wristband to your cart to receive the promotion.

This campaign is valid between 4 September and 12 November 2017.

Life on the pulse

Take a peek into what life with Polar A370 looks like.

Follow the Beat of Your Day

Tracking your activity is more than just counting steps. Polar A370’s wrist-based heart rate monitor tracks your heart rate 24/7, giving you a more accurate look at your daily activity and calories burned. Easily see how your heart rate responds to the peaks and valleys of your day.

Coupled with your daily activity, the Polar A370 delivers the best overall guidance to help you achieve your fitness goals.

Your Ultimate Workout Buddy

The key to reaching any fitness goal is to exercise at the right intensity. With 40 years of experience, Polar’s unique and scientifically validated Smart Coaching features guide you through your workout and give you motivating feedback to drive you towards your fitness goals.

The combination of wrist-based heart rate and activity feedback will make the Polar A370 your new favorite exercise partner.

Harness the Power of Polar Sleep Plus™

Sleep is vital to your fitness and well-being.

The Polar A370 features Polar’s advanced Sleep Plus system, which automatically tracks the timing, amount and quality of your sleep and detects any interruptions.

Set your preferred sleep time, rate your sleep, and receive insightful feedback to help you catch your best Zzz’s.

Stay Connected

Polar A370 is BFFs with your phone. When you train outdoors, Polar A370 uses your phone’s GPS signal to track your pace, distance and route. Smart notifications keep you in the loop when you don’t have the time to check your phone – even in the middle of your workout, if you want.

Get notifications for incoming calls, messages, social media and calendar appointments right on the screen of your Polar A370.

Complete your look

Put the finishing touch to your look with the right wristband. Polar A370 changeable wristbands are available in six colors and two sizes. The wristbands are made of a soft material and come with a secure buckle.

Free app and web service

Polar Flow — achieve more

Track your activity, analyze your progress and achieve more with Polar Flow – the complete fitness and training companion to your Polar A370, available on desktop and mobile.


Follow your daily activity and sleep, see your daily, weekly and monthly summaries and learn about the health benefits of your daily choices.


See all your training data, analyze your performance and follow your progress. Analyze quickly in the app and in depth in the web service. Plan your workouts or set up a training program for a running event.

Get connected

Get social: follow your friends, share your achievements or join groups to find others who enjoy an active lifestyle. You can link your Polar Flow account to third party services, such as MyFitnessPal, or share your training data with your PT with Polar Coach, Polar’s free online tool for coaches.

Buy now

Buy from the official Polar webstore or find retailer

Buy Now - $179.95


Support and latest updates

Keep your Polar A370 up to date to take advantage of the latest features and functionalities. Visit our support pages for update info, user manuals and more.

Updates See all
2017.08.09Polar A370 firmware update 1.0.25
2017.06.15Polar Flow app for Android (3.5.1) and iOS (3.5.3)
2017.06.13Polar Beat for Android (2.3.3) and iOS (2.3.2)
Product Support