immobile periods, the algorithm gives more weight to long than short immobile periods. The percentage of restful sleep compares the time you slept restfully with the total sleeping time. Restful sleep is highly individual and should be interpreted together with sleep time.

Knowing the amount of restful and restless sleep gives you a look into how you sleep at night and if it’s affected by any changes in your daily life. This may help you in finding ways to improve your sleep and feel well rested during the day.

Activity data in Flow App

With the Polar Flow mobile app you can follow and analyze your activity data on the go and have your data synced wirelessly from your V800 to the Polar Flow service.

TRAINING BENEFIT

The Training Benefit feature helps you better understand the effects of your training. This feature requires the use of the heart rate sensor. After each training session you get textual feedback on your training session providing that you have trained at least a total of 10 minutes in the heart rate zones.

HOW DOES IT WORK?

Training Benefit feedback is based on heart rate zones. It reads into how much time you spend and how many calories you burn in each zone.

Motivating feedback that’s delivered straight to you immediately after exercise is something we can all benefit from. 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, and for more detailed feedback, you can either check your training file or you can get further in-depth analysis at polar.com/flow. The descriptions of different training benefit options are listed in the table below.

Feedback

Training benefit

 

What a session! You improved your sprint speed and the nervous system of

Maximum training+

your muscles, which make you more efficient. This session also increased your

 

resistance to fatigue.

 

 

Maximum training

What a session! You improved your sprint speed and the nervous system of

your muscles, which make you more efficient.

 

 

 

Maximum & Tempo train-

What a session! You improved your speed and efficiency. This session also sig-

nificantly developed your aerobic fitness and your ability to sustain high intens-

ing

ity effort for longer.

 

 

 

Tempo & Maximum train-

What a session! You significantly improved your aerobic fitness and your ability

to sustain high intensity effort for longer. This session also developed your

ing

speed and efficiency.

 

 

 

 

Great pace in a long session! You improved your aerobic fitness, speed, and abil-

Tempo training+

ity to sustain high intensity effort for longer. This session also increased your

 

resistance to fatigue.

 

 

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Polar V800 manual Training Benefit, Activity data in Flow App, HOW does IT WORK?, Feedback Training benefit