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
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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.

Stay on the pulse

Get to Know the Polar A370

  • Smart Coaching
  • Features
  • Specs

Activity Guide

Keep moving. Set your daily activity goal and the Polar A370 will motivate you towards your target. 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 an active lifestyle, even the small things make a difference. Learn how your everyday choices benefit your health and well-being. Read more ›

Smart calories

Smart nutrition choices and exercise go hand-in-hand. Polar A370’s continuous heart rate measurement combined with 24/7 activity tracking ensure your calories burned are measured accurately and reliably. Read more ›

Fitness Test

All you need is 5 minutes and a place to rest. Simply pair your Polar A370 with the Polar H10 heart rate sensor to easily take this test. Developed in conjunction with leading researchers, Polar’s Fitness Test determines your current fitness level and allows you to measure your progress over time. Read more ›

Sleep Plus

Polar’s new, proprietary sleep intelligence system gives you a comprehensive overview of your sleep by monitoring your movement with extreme precision. Sleep Plus provides feedback to help you achieve your best night’s sleep.

Training Benefit

Looking for motivating feedback after your workout? Polar’s Training Benefit immediately explains what type of physiological benefit you gained from your training. 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. Whether during a workout or continuously throughout the day, Polar’s proprietary 2-LED optical heart rate solution measures your heart rate easily, conveniently and accurately.

GPS via phone

Polar A370 now works even closer with your phone. Using your phone’s GPS signal, the Polar A370 tracks your speed, distance and route during your favorite outdoor sports.

Speed and distance, straight from the wrist

Not a fan of running with your phone? Jump on the treadmill or go for a run outdoors and the Polar A370 will track 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 on your Polar A370 and do them again whenever you want.

Choose to do more

With over one hundred different options to choose from, Polar makes it easy to pick the right sport profile for every exercise session. Further personalize your workout experience by customizing different heart rate zones for each sport profile.

Smart notifications

Connect via Bluetooth Smart to see notifications from your mobile phone directly on the screen of your Polar A370. Get alerts for incoming calls, messages, emails, calendar events and more.

Inactivity alerts

Polar A370 gives you a gentle, 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.

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Webstore available in selected countries

Color

Accessories

Buy Now - $179.95
Shipping: Free shipping
Payment methods: PayPal

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