GPS running watch
Polar M400 is a waterproof GPS running watch and daily fitness tracker. It can help you plan optimal training, break your records, and even find your way back from a run.
Designed for life
Pair your phone with M400 and get alerts for incoming calls, received messages and push notifications from social media apps to your wrist and stay in the know wherever you are.
Don't miss a thing
See incoming calls and texts at a glance. Answer calls using your watch or decline them when training demands it.
Keep up to date
Read messages conveniently on the M400's display even when your phone is not at hand.
Be where you need to be
M400 alerts you about the appointments on your calendar and makes sure you're always on time.
Receive push notifications from social media apps to your wrist and stay in the know wherever you are.
Run beyond ordinary
Shows you how your training affects your body and helps you compare the load of different sessions. Monitor your load continuously to recognize your personal limits and adjust training intensity and duration accordingly. Available on the Polar Flow web service. More ›
Shows you the time necessary for recovery before the next training session. Available on the Polar Flow web service. More ›
A five-minute test that measures aerobic fitness from your resting heart rate, heart rate variability and your background information. Complete the test regularly to see the progress you’re making. More ›
Shows how your running performance is developing. More ›
Delivers motivating feedback immediately after training describing the effect of the session. More ›
Lets you know exactly how many calories you’ve burned based on your weight, height, age, gender, your individual maximum heart rate (HRmax) and how hard you’re training. More ›
Shows how active you’ve been during the day and gives practical guidance for reaching your daily activity goal. More ›
Gives feedback on your daily, weekly and monthly activity, showing how your active choices help you stay healthy. More ›
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. More ›
The M400’s built-in GPS keeps track of your pace, distance and altitude. With the “Back to start” feature you can safely explore new routes.
The M400 tracks your steps, activity, sleep and calories 24/7, encouraging you to stay active every day.
Heart rate training
Heart rate training is one of the most effective training methods. Take advantage of it by using a Polar H7 heart rate sensor.
Running cadence from the wrist
Keep an eye on your running cadence to improve your running efficiency and avoid injuries.
Predict your event finish times
Based on your long-term progress, Running Index analysis predicts your event finish times for 5K, 10K, half marathon and marathon runs.
Plan, sync and share your training using the exclusive Polar Flow online service and mobile application. All data is easily viewable.
Smart Notifications allow you to see notifications from your phone directly on the screen of your M400.
You can set your own individual training targets and follow your progress towards them using Polar Flow.
Speed and distance also indoors
Measure your speed and distance while running or walking indoors – all from the movement of your wrist.
|Display size||128 x 128 px high resolution display|
Integrated GPS with AssistNow™ satellite prediction technology
Manual and auto laps
4 MB Flash memory
Rechargeable 190 mAh lithium polymer battery
Battery duration up to 8 hours of training time with GPS and Bluetooth Smart heart rate sensor
Standard micro USB cable for data sync with PC or Mac
Bluetooth Smart with mobile and sensors
Polar Flow web service compatibility with Mac OS X 10.6, OS X 10.7, OS X 10.8, or later, and PC Windows XP, Windows 7, Windows 8, or later
Polar Flow mobile app compatibility
UI languages English, Spanish, Portuguese, French, Danish, Dutch, Swedish, Norwegian, German, Italian, Finnish, Polish, Russian, Chinese, Japanese
Read the reviews
“Polar got it right here.”
– DC Rainmaker
The M400 has been positively received worldwide. Read what the experts are saying.
“The unit is a near perfect blend of activity tracker with GPS running watch, as well as daily wrist watch.”
“The Polar M400 won't let you down, and the heart-strap bundle is a great all-round package.”
“Like many of the fitness bands on the market, the Polar M400 tracks steps, distance, and sleep (along with calories), throughout your day using an accelerometer. However, it’s also an excellent GPS running watch with it’s idiot-proof performance breakdowns (smart coaching) and swift GPS lock plus a ‘get me home’ feature.”
“The Polar M400 is a more affordable option built for data-crunching strenuous workouts.”
”The feature-packed and waterproof Polar M400 offers a good set of features for beginners and advanced runners a like. It also provides feedback on your daily activities and sleep.”
“The M400 has a very good GPS and intuitive interface making it a more than solid hybrid device, that combines a fitness tracker and running/cycling watch into a single lightweight smart-wearable.”
Made easy for you
Sync all your training details between M400 and the Polar Flow web service and app with Bluetooth Smart.
Made easy for you
After training get a quick visual overview of your training and analyze your achievements in the Polar Flow app.
Polar has an entire ecosystem of excellent applications, services and accessories to help you get the most out of our products. Customize them to match your preferred look. Track your progress using the Polar Flow online service and app.
Polar Flow web service and app
Follow your daily progress and get guidance that helps you meet your goals. Learn how your daily habits can improve your wellbeing.
Free online tool for your coach or personal trainer to easily follow your progress.
For live, accurate heart rate, use the Polar H7 Bluetooth® Smart heart rate sensor. If you're interested in improving your running technique and performance, go with the Stride sensor Bluetooth® Smart.
Keep tabs on your nutrition by connecting with the world’s largest food, nutrition and calorie database.
See M400 in action
Get support and the latest updates
Update your product to take advantage of the latest features and functionalities. Get support and user manuals.
|2017.05.11||Recovery status working normally again||›|
|2017.04.28||Activity working normally again||›|
|2017.04.21||Activity and Recovery Status issues||›|
Upgrade your performanceUpgrade your training computer to enhance your experience and achieve a more complete understanding of your performance.
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