Polar A370 fitness tracker with continuous heart rate

Fitness and cross-training

Polar A370 fitness tracker with continuous heart rate

Polar A370 is a sleek and sporty waterproof fitness tracker that helps you stay on the pulse 24/7 with continuous heart rate monitoring, advanced sleep tracking and Polar’s unique workout features.

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

Buy now - $299.00
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Life on the pulse

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

Get to know your heart

Learn how your heart behaves in the twists and turns of your everyday life. Polar A370’s wrist-based heart rate monitor tracks your heart rate 24/7, so you’ll get a complete overview of your daily activity. Polar A370 shows you how many calories you’ve burned, reveals your lowest and highest heart rate and shows you how your heart rate varies during the day.

When you’re working out, Polar A370’s heart rate guidance helps you train at the right intensity and drives you towards your fitness goals.

Sleep tight with Polar Sleep Plus™

Sleeping well is vitally important to your health and well-being. Polar’s new advanced Sleep Plus sleep analysis makes you an expert on your own sleep and helps you towards a more balanced lifestyle.

Sleep Plus gives you valuable insights to your sleep. It tracks the timing, amount and quality of your sleep and automatically detects when your sleep is interrupted. You can set your preferred sleep time and rate your sleep, and you’ll get sleep feedback. Learn about your sleeping patterns and think about what you can do to make the most of your night.

Get connected

Polar A370 is BFFs with your phone.

When you train outdoors, Polar A370 uses your phone’s GPS signal to track your pace and distance and to map out your route.

Polar A370’s smart notifications keep you in the loop even when you don’t have the time to check your phone. You get notifications for incoming calls, messages, social media and calendar appointments right on the screen of your Polar A370.

Keep on the move

Polar A370 is your ultimate training buddy. It makes your workouts easy and convenient with wrist-based heart rate tracking and helps you train at the right intensity with heart rate zones. Polar’s unique and scientifically validated Smart Coaching features guide you through your workouts and give you motivating feedback.

An active lifestyle is about healthy choices outside the gym as well. Polar A370 keeps you on the move in your everyday life — it gives you a daily activity goal and reminds you to get up and move if you stay still for too long.

Get to know Polar A370

Stay on the pulse

  • Smart Coaching
  • Features
  • Specs

Activity Guide

Stay on the move every day. Polar A370 gives you a personalized daily activity goal that motivates you to keep moving throughout the day. Polar Activity Guide shows you how active you’ve been and gives you practical tips on how to reach that 100%. Read more ›

Activity Benefit

When it comes to a healthy lifestyle, even the small things make a difference. Learn how your active everyday choices benefit your health and well-being. Read more ›

Smart calories

Polar A370 helps you keep track of the calories you’ve burned. You’ll be able to see the calories burned during each training session and for the whole day. The continuous heart rate measurement combined with 24/7 activity tracking make sure your calorie burn is measured accurately and reliably. Read more ›

Fitness Test (H10 heart rate sensor required)

Hook up Polar A370 with Polar H10 heart rate sensor and test your aerobic fitness level without breaking a sweat in only five minutes. Polar Fitness Test measures your aerobic fitness from your resting heart rate, heart rate variability and your personal information. Read more ›

Sleep Plus

Polar’s new advanced sleep tracking technology gives you insights to your sleep. It monitors your movement with extreme precision to give you a comprehensive overview of your sleep.

Continuous heart rate

Stay on the pulse with 24/7 heart rate monitoring and get a comprehensive view on how your heart behaves during your day. Continuous heart rate monitoring helps.

Training Benefit

Learn more about the effects your training has on your fitness. Polar A370 gives you feedback right after each workout and tells you how your workout benefits your body. Read 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. Read more ›

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Wrist-based heart rate training

Heart rate tracking with Polar A370 is simpler than ever. Your heart rate is measured easily, conveniently and accurately with Polar’s proprietary 2-LED optical heart rate solution.

GPS via phone

Join forces with your phone to get all the data you need. Polar A370 uses your phone’s GPS signal to measure speed and distance and to map your route for your outdoor sports.

Speed and distance from the wrist

Not a fan of running with your phone? When you go for a run without your phone or jump on the treadmill, Polar A370 tracks your pace and distance from the movements of your wrist.

Training targets

Plan your workouts in Polar Flow and sync them directly to your Polar A370 to get guidance throughout your session. You can save your favorite workouts as favourites on your Polar A370 and do them again whenever you want.

Sport profiles

You choose how you move. Choose your favorite sport profiles from a list of over 100 sports and add them to your Polar A370 to get the relevant data to the screen of your Polar A370 when you work out. Sport profiles also help you to keep track of your training log in Polar Flow.

Smart notifications

Polar A370 keeps you connected with notifications from your phone. You’ll get alerts for incoming calls, messages, emails and calendar events.

Inactivity alerts

Sitting for too long is bad for your health. If you stay still for too long, Polar A370 gives you a vibrating alert to make sure you take those important active breaks.

Measurement

Weight 31.7g (S), 37.3g (M/L)
Wristband thickness 13.5 mm
Wristband width 23.5 mm
Wristband material Silicone
Wristband sizes S, M/L

Tech

Waterproof (WR30)
Wide-viewing angle full color TFT display with capacitive touchscreen
Screen resolution 80 x 160 pixels (RGB)
Screen size 13mm x 27mm
Polar proprietary optical heart rate module (2 green LEDs, 1 photodiode, analog front-end)
Rechargeable 110 mAh battery

Battery life up to 4 days with 24/7 activity tracking, including 1 hour of training per day (without smart notifications in use) with continuous HR

Connectivity

Easy wireless sync via Bluetooth® Smart with the Polar Flow app
Micro USB connector for charging and data sync with PC or Mac via Polar FlowSync
Compatible with:
* Computer running Mac OS X10.6 or later and Windows XP, 7, 8, 10
* Mobile phones running iOS7 or later and Android 4.3 or later
* Polar Balance smart scale
* Polar H10 heart rate sensor
* Apple Health Kit, Google Fit, MyFitnessPal and MapMyFitness
* More info on phone compatibility available here

Updatable software

UI languages: English, German, French, Spanish, Italian, Portuguese, Finnish, Swedish, Norwegian, Danish, Dutch, Japanese, Chinese (Simplified), Polish, Russian, Turkish, Czech, Indonesian

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.

Activity

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

Training

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

Webstore available in selected countries

Color

Accessories

Buy Now - $299.00
Payment methods:

Small: 125-170 mm
Medium / Large: 140-200 mm

Support

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
2017.11.06Polar Flow app version 3.6.4 for iOS
2017.09.26Polar Flow app for Android (3.6.1) and iOS (3.6.2)
2017.08.09Polar A370 firmware update 1.0.25
Product Support

Accessories

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