User manual
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If you wear your V800 at night it will track your sleep. No sleep mode activation is needed. V800 will
automatically detect from your wrist movements that you’re sleeping.
Your sleep time is the longest continuous rest time that takes place within 24 hours starting from 18:00/6pm to
next day’s 18:00/6pm. While less than 1 hour breaks to your sleep do not stop sleep calculation, they are not
calculated into sleep time. Breaks longer than 1 hour discontinue sleep time calculation.
Sleep time, and its quality (restful / restless) is shown at Flow web service and Flow app after V800 is synced.
The periods when you sleep peacefully and don’t move a lot are calculated as restful sleep. Periods when you
move and change your position are calculated as restless sleep. Instead of simply summing up all the
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
Maximum training+
What a session! You improved your sprint speed and the nervous system of
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.










