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