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  • Polar - M400 GPS with Heart Rate Monitor   - White
  • Polar - M400 GPS with Heart Rate Monitor   - Blue
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  • Polar - M400 GPS with Heart Rate Monitor   - White
  • Polar - M400 GPS with Heart Rate Monitor   - Blue

Polar M400 GPS with Heart Rate Monitor


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    3 Reviews


    Leave your limits in the dust.

    Think of the Polar M400 GPS with Heart Rate Monitor as a training partner that constantly pushes you to perform while you're running and pushing hard in the gym. This GPS-based fitness watch maximizes every run by recording cadence, speed, and running distance. The included Polar H7 Heart Rate Monitor wirelessly feeds heart rate specifics to the watch, so you can optimize your training regimen for upcoming races and personalized goals.

    For runners wondering where they stand for upcoming events, the M400 offers predictive finish times based on your long-term running progress. Individualized targets help you reach your exercise goals by setting specific thresholds for daily activity and exercise on Polar's Flow application. Activity tracking counts your daily steps, calories burned, and sleep schedule for optimized health tailored to your specific needs. As a tech-savvy bonus, Smart Notifications relay important phone messages as you exercise, all without requiring you to painstakingly dig out your smartphone from your pack or pocket.

    • GPS fitness watch for heart-pumping workouts and runs
    • Distance and cadence metrics push your running ability
    • Finds optimal heart rate as you train for upcoming races
    • Activity tracking pushes you to walk longer and get more sleep
    • Keeps tabs on phone notifications as you train
    • Waterproof design protects against passing storms during trail runs
    • Item #POL1608

    Tech Specs

    Strap Material
    yes, tracks steps
    yes, GPS-based distance
    yes, GPS-based altitude
    Heart Rate Monitor
    yes, bundled with Polar H7 heart rate sensor
    Technical Features
    Advanced GPS: measures pace, distance, and altitude, Activity tracking: tracks steps, activity, sleep, and calories 24/7, Heart Rate training with included Polar H7 sensor, Running Cadence, Predictive event finish times for 5k, 10k, half-marathon, and marathon, Polar Flow app: plan, sync, and share training data, Smart notifications: recieve text and incoming call notifications from phone, Individual Training Targets
    yes, Bluetooth Smart
    Operating System
    Mac OSX 10.6 and later, Windows XP, 7, 8, 10
    Dual Times
    yes, 12/24 hour time
    Date Indicator
    Weekday Indicator
    yes, waterproof
    Battery Type
    rechargeable 190mAh lithium polymer battery
    Battery Life
    [training w/GPS and Bluetooth] 8 hours
    Polar H7 Heart Rate Monitor, 1 Micro USB cable
    Claimed Weight
    56.6 g
    Recommended Use
    fitness, running
    Manufacturer Warranty
    2 years

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

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    My Wife loves it

    • Familiarity: I gave it as a gift but have feedback to share

    The ability for my wife to track her sleeping patterns throughout the week is very important, as it helps her determine what she needs to do to improve the sleep she is getting or keep doing what she is doing so she is able to train day in and day out without any potential issues along the way. She wears this wherever she goes and will continue to use it as a trusted guide each and every day of her life.


    • Familiarity: I've used it several times
    • Fit: True to size

    I love that watch, it have more features and is better than I expected, it's so comfortable. The heart rate sensor is very accurate and very light (not interfere with the performance of the sports practice). The battery lasts more than 8 hour of continuos ussage (with the hearth rate sensor and the GPS activated).
    The elastic band for the chest is adjustable and very comfortable. It's definitively the most awesome watch that I have ever.

    Smart Notifications with the M400

    Set up Polar smart notifications on your sports or fitness watch. Adjust Incoming calls, Text messages, Social feed notifications, Calendar reminders or E-mail previews with the Polar V800 or Polar M400. In this video we use the Polar V800 and iPhone for an example, but the set up process is almost the same with Polar M400.

    Polar M400 features

    This manual for the Polar M400 running watch shows you some of the useful features the watch has. Learn to use the Finish time estimator, set it up for great for marathon training, the Interval timer and Heart rate zones. Polar V800 includes the same features, so if you have chosen the Polar V800 instead, you will still find this manual useful.

    Track Activity with Polar Flow App

    See how to track activity with the Polar M400 running watch and Polar Flow app. If you have updated your Polar V800 with firmware 1.2 or newer it is suitable for you too. See how to reach your daily activity goal and learn what different intensity activities mean. You will also learn basics of tracking activity with Polar Flow app and Polar Flow web service.

    The Polar M400 running watch with GPS

    Running watch with GPS and 24/7 tracking, Polar M400 is the perfect watch for all runners out there. The Polar M400 running watch is an exceptional blend of sporty design, integrated GPS and advanced training features. Pair your Polar M400 running watch with Polar Flow coaching app or MyFitnessPal and get the most out of your Polar watch.

    Easy to use, accurate

    • Familiarity: I've put it through the wringer
    • Fit: True to size

    I bought my M400 to help me heart rate train for a half marathon. Best decision I have made in a long time. It is easy to use has fast GPS, super accurate HR and when used with the Polar Flow smart phone app (yes it is free!) you can track your performance over time, daily and dig deep into analysis! Just couldn't be happier. And yes I set a personal record at age 43! That was 2 years ago and it is still going. Another thing about Polar, the watches up date through your computer. Mine has at least 3 new features that have updated since I bought it like altitude and a new Polar training program and with TrainingPeaks. Just love it! All for free, so I don't have to replace my watch every year to get more features! One draw back, this model won't do HR under water, you need the V800 for that.