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What are Active Zone Minutes or active minutes on my Fitbit device?

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Earn Active Zone Minutes or active minutes (based on your device) with heart-pumping activity throughout the day.

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Does my Fitbit device track Active Zone Minutes or active minutes? 

Fitbit Charge 4 tracks Active Zone Minutes User-added image. All other devices track active minutes User-added image.


Active Zone Minutes User-added image

How do I 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.

Heart-Rate ZoneActive Zone Minutes User-added image
1 minute in the fat burn zone1 Active Zone Minute
1 minute in the cardio or peak zone2 Active Zone Minutes*

For more information about heart-rate zones, see How do I track my heart rate with my Fitbit device?

*Your Fitbit device doesn't track your heart rate during a swim workout. You earn 1 active zone minute for each minute of swimming.

What is my Active Zone Minutes goal on my Fitbit Charge 4?

To start, your goal is to earn 150 Active Zone Minutes each week. The American Heart Association and World Health Organization recommend at least 150 minutes of moderate-intensity activity or 75 minutes of vigorous activity, or a combination of both, each week. If you earn an average of 22 Active Zone Minutes daily, you meet these recommendations, but you can change your goal based on your needs.

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How do I change my Active Zone Minutes goal?

Update your goal in the Fitbit app. For more information, see How do I track my health and fitness goals with the Fitbit app?

Why did I earn more Active Zone Minutes than my workout time?

For more intense workouts, such as spinning, interval training, or running, the number of Active Zone Minutes you earn might exceed the length of your workout. For example, if you run for a total of 20 minutes and spend 10 minutes in the fat burn zone and 10 minutes in the cardio or peak zones, you earn 30 Active Zone Minutes. 

WorkoutHeart-Rate ZoneActive Zone Minutes User-added image
5-minute warmupFat burn zone (1x)5
10-minute runCardio and peak zones (2x)20
5-minute cool downFat burn zone (1x)5
20-minute workoutTOTAL30 

What are heart zone alerts on my Fitbit device?

There are 2 ways your Fitbit Charge 4 alerts you about Active Zone Minutes: 

  • Workouts: A few moments after you enter a different heart-rate zone in the Exercise app User-added image, so that you know how hard you're working.
    User-added image

       
    The number of times your device buzzes indicates which zone you're in:
    Number of BuzzesHeart-Rate Zone
    1 buzzFat burn zone
    2 buzzesCardio zone
    3 buzzesPeak zone
  • Everyday activity: 7 minutes after you enter a heart-rate zone during the day (for example, during a brisk walk).

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Can I turn off heart zone alerts on my Fitbit Charge 4?

ScenarioHow to Turn Off Alerts
Heart zone alerts during an exercise in the Exercise app User-added image Turn off alerts for run, bike, outdoor workout, walk, interval timer, and hike in the Exercise app User-added image:
  1. On On your Charge 4, open the Exercise app  User-added image  and swipe to find an exercise.
  2. Swipe up on the arrow, and tap Heart Rate Zone Alert.
    User-added image

To turn off alerts for a difference exercise in the Exercise app  User-added image  , turn on Do Not Disturb on your Charge 4.
Heart zone alerts you receive during everyday activity.On your Charge 4, open the Settings app  User-added image , swipe down and tap Heart Zone Alerts.
Receive heart zone alerts during an exercise in the Exercise app User-added image but turn off other notificationsOn your Charge 4, open the Settings app  User-added image  > Do Not Disturb > Exercise alerts.

Can I see my previous active minutes data?

Your active minutes data is below your Active Zone Minutes data in the Fitbit app:

  1. On the Today tab User-added image, tap Zone Mins.
  2. At the top, tap Week
  3. Scroll down to see your active minutes data.

Active Minutes User-added image

How do I earn active minutes?

Earn active minutes through 10 minutes or more of continuous moderate-to-intense activity. 

How does my Fitbit device calculate active minutes?

Fitbit devices calculate active minutes through metabolic equivalents (METs). This metric, which factors in your body mass, is used to estimate exercise intensity. METs are calculated through a ratio (source):

Rate of energy expended during an activity : rate of energy expended during rest 

1 MET is the rate of energy you expend during rest or sitting quietly, while you typically expend 3 METs or more during a moderately-intense activity such as walking. You earn active minutes for activities at or above about 3 METs. 

If your Fitbit device tracks heart rate, your heart-rate data is used to calculate active minutes for non-step-based activities, such as weight lifting, yoga, and rowing. If your device doesn’t track heart rate, your active minutes for these activities will be lower.

What is my active minutes goal on my Fitbit device? 

To start, your active minutes goal is based on the Center for Disease Control’s recommendation of daily moderate-to-intense activity: 30 minutes for adults and 60 minutes for children. You can change this goal to meet your needs. 

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How do I change my active minutes goal?

Update your goal in the Fitbit app. For more information, see How do I track my health and fitness goals with the Fitbit app?

Why did I earn a different number of active minutes for the same activity?

Level of intensity helps to determine the number of active minutes you earn for an activity. If you receive a different number of active minutes for the same activity (for example, your daily walk), there is likely a difference in the intensity levels between the 2 workouts.

Last updated: April 15, 2020
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