Smart Coaching Heart rate zones The default heart rate zones are divided into five zones based on the percentage of your maximum heart rate: very light (50-60 % HRmax), light (60-70 % HRmax), moderate (70-80 % HRmax), hard (80-90 % HRmax) & maximum (90-100 % HRmax). You can also define the zones as you want. Training benefit Motivating feedback that’s delivered straight to you immediately after exercise. So if you want to know the effect of different training sessions, this feature will tell you exactly what you need to know. You get a quick overview after each session, & for more detailed feedback, check your training file or get further in-depth analysis at Polar web services. Fitness test Polar Fitness Test measures your aerobic fitness at rest in just five minutes. The result, Polar Own Index, evaluates your maximal oxygen uptake (VO2max). With the Polar Fitness Test you can measure your aerobic fitness by yourself, automatically & without any exertion. All you need is your training computer. The test is based on heart rate & heart rate variability at rest & personal information. Smart Calories The most accurate calorie counter on the market calculates the number of calories burned. Calculation is based on your individual data: your weight, height, age, gender & the intensity of physical activity. Running Index Running Index is based on heart rate & speed data measured during the run. It gives daily information about your performance level, both aerobic fitness & running economy. Improvement in running efficiency indicates enhanced economy of running performance. Activity features Activity tracking 24/7 24/7 activity tracking registers your daily activity at different intensity levels. M400 tracks your steps, calories & sleep time, & notifies when you’ve been inactive for long periods of time. Activity Guide With Activity Guide you get recommended daily activity goal. It shows you different ways to reach your daily goal & tells you how active youve been during the day. Steps & distance Counts steps taken during the day. You can also see the distance of your previous day from the Diary view. Inactivity alerts Reminds you when you have been sitting for too long. Activity zones Activity zones track your daily activities at five intensity levels: resting, sitting, low, medium & high. You can follow these in the Polar Flow web service & app. Activity Benefit Activity Benefit gives you daily, weekly & monthly feedback, because the more you move, the greater the health benefits. You can check up on how youre doing either from your mobile or from the web. Sleep duration & quality Tracks your sleeping time automatically when you lie down & your body movements slow down. By showing you the amount of restful versus restless sleep, Polar Flow gives you a detailed look into how you sleep at night so you can see if its affected by any changes in your daily life. Training features Sport profiles Lets you list all your favorite sports & define specific settings for each one of them. For example, you can create tailored views for each sport you do & choose what data you want to see when you train: just your heart rate or just speed & distance – whatever suits you & your training needs & requirements best. Training Diary Training targets Create detailed training targets, like interval workouts, in the Polar Flow web service & sync them to your device. During training you can easily follow the guidance on your device. When you are out of the right HR zone, the training computer will give a visual & audible alarm. Automatic laps Set your training computer to take laps based on preset distance, for example, every 1 km/mi. Personal best Tracks your personal bests & notifies you when you have broken your record. Finish Time Estimator When you head out for a run or a ride, M400 estimates your end time based on your speed Autostart/stop When you turn on this feature, your training computer starts & stops training recording automatically when you start or stop moving. Interval timer You can set two timers for any interval workout, based on distance or time. You can also combine or loop those timers. Instant analysis Instant analysis in the Polar Flow app. See your route & graphical visualization of your training data. Advanced training analysis You can easily analyse every detail of your training in the Polar Flow web service & get a deeper insight into your activities with plenty of possibilities to learn from what you do. GPS features Distance Speed/ Pace Altitude, ascent & descent Altitude is shown as ascended & descended meters/feet & uphill/downhill. Back to Start Directs you to your starting point in the shortest distance possible. Now you can check out more adventurous routes & explore them, knowing that youre only a touch of a button away from seeing the direction to where you started. Technical Features• Weight 56, 6g • Water resistant (30m) • Thickness 11, 5mm • High resolution display (128 x 128) • Display texts in 15 languages • Updatable software • Memory capacity up to 30 h training with GPS & HR Rechargeable battery With up to 8 h training time, 24 days in time mode with daily activity monitoring Easy sync via Polar Flow app with Bluetooth Smart Mobile app compatibility iPad (3rd & 4th generation), iPad mini, iPhone 4S, iPhone 5, iPhone 5C, iPhone 5S, iPod touch (5th generation). Data transfer to PC & Mac with micro USB (Universal Serial Bus) cable Polar Flow web service compatibility with Mac OS X 10.6, OS X 10.7, OS X 10.8, or later, & PC Windows XP, Windows 7, Windows 8, or later