Free 2-Day Shipping & Free Returns! Details

Product Highlights
Features a 2-LED optical heart rate solution that measures heart rate
Tracks your speed, distance and route during your favorite outdoor sports
Tracks your pace and distance from the movements of your wrist
Save your favorite workouts on your fitness watch and do them again whenever you want

Polar A370

HOLIDAY SPECIAL: 20% Off for Limited-Time Only! + FREE 2-DAY SHIPPING & 60-DAY RETURNS!
Gift wrapping:
Options available
Order today for Free 2-Day Shipping
Eligible for Free 60-Day Returns!

Convenient & Secure Ways to Pay



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.

What's Included in the Box?

  • POLAR A370

Product Information

Polar A370 Fitness Tracker

POLAR M600 Activity Tracker & Sports Smart Watch

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.

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.


  • 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%.
  • 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.
  • 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. 
  • 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. 
  • 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. 
  • 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.


  • 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.



  • 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


  • 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


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: iOS10 or later and Android 4.4 or later
  • Polar Balance smart scale
  • Polar H10 heart rate sensor
  • Apple Health Kit, Google Fit, MyFitnessPal and MapMyFitness
  • More info on phone compatibility 

Updatable Software:

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

Read Customer Reviews