Fitbit Zip Charge 3 User Manual

Icon Zone Calculation Description
Out of
Zone
Below 50%
of your
maximum
heart rate
Your heart rate may be elevated, but not enough to be
considered exercise.
Fat
Burn
Between
50% and
69% of
your
maximum
heart rate
This is a low-to-medium intensity exercise zone. This zone
may be a good place to start for those new to exercise. It's
called the Fat Burn zone because a higher percentage of
calories are burned from fat, but the total calorie burn rate
is lower.
Cardio Between
70% and
84% of
your
maximum
heart rate
This is a medium-to-high intensity exercise zone. In this
zone you're pushing yourself but not straining. For most
people this is the exercise zone to target.
Peak Greater
than 85%
of your
maximum
heart rate
This is a high-intensity exercise zone. This zone is for short
intense sessions that improve performance and speed.
Custom heart-rate zones
Configure a custom heart-rate zone or a custom max heart rate in the Fitbit app if
you have a specific target in mind. For example, elite athletes might have a target
that differs from the American Heart Association’s recommendations for most
people.
For more information, including links to relevant American Heart Rate Association
information, see help.fitbit.com.
41

Fitbit Zip Charge 3 Specifications

General

Brand	Fitbit Zip
Model	Charge 3
Category	Fitness Trackers
Language	English