Fitbit Zip FB422, User Manual

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Zone Calculation Description
Cardio
Zone
Between 60% and 84%
of your heart rate
reserve
In the cardio zone, you’re likely doing a vigorous
activity such as running or spinning.
Peak
Zone
Greater than 85% of
your heart rate reserve
In the peak zone, you’re likely doing a short,
intense activity that improves performance and
speed such as sprinting or high-intensity interval
training.
Custom heart-rate zones
Instead of using these 3 heart-rate zones, you can create a custom zone to target a specific heart-
rate range in the Fitbit app.
For more information, see help.fitbit.com .
Earn Active Zone Minutes
Earn Active Zone Minutes for time spent in the fat burn, cardio, or peak heart-rate zones. To help
you maximize your time, you earn 2 Active Zone Minutes for each minute you’re in the cardio or
peak zones. Heart-rate zones are personalized based on your fitness level and age.
1 minute in the fat burn zone = 1 Active Zone Minute
1 minute in the cardio or peak zones = 2 Active Zone Minutes
There are 2 ways FB422 alerts you about Active Zone Minutes:
•
A few moments after you enter a different heart-rate zone in the Exercise app , so that
you know how hard you’re working. The number of times your device vibrates indicates
which zone you’re in:
1 buzz = fat burn zone
2 buzzes = cardio zone
3 buzzes = peak zone