It’s time to toss out the 10,000 steps a day rule and replace it with a weekly goal for overall moderate-intensity and/or vigorous activity! Yes, really…let go of that step per day goal.
Fitbit folks know that keeping track of how active we are throughout the day helps us reach our weekly fitness goals. While all Fitbit smartwatches and trackers tally your active minutes, the Charge (4+), Ionic, Sense, Inspire 2, and Versa Series now tally your active zone minutes which measure time spent in each of your heart rate zones (fat burn, cardio, or peak heart-rate zones.)
Fitbit awards you with varying Active Zone Minutes based on your heart-rate zone during your workouts. The more intense you workout, the more Active Zone Minutes your earn–it’s that simple.
And that’s how Fitbit’s Active Zone Minutes help you maximize your fitness and training routines and meet your weekly fitness goals!
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What’s the difference between Fitbit’s active minutes and active zone minutes?
First off, Fitbit calculates Active Zone Minutes differently from the Active Minutes.
Fitbit awards active minutes for each minute of activity, regardless of how strenuous that activity was. Additionally, the active minutes feature does not take your heart rate into consideration.
But with Fitbit’s Active Zone Minutes, your resting heart rate and the heart rate zones you hit during your activity matters. And Fitbit awards you with weighted minutes depending on what heart rate zone you hit during your activity.
All activity is not equal!
In a nutshell, you receive 2X for each minute logged in either cardio or peak heart-rate zones while you earn 1X for each minute logged in the fat-burning zone.
Fitbit uses the formula of 220 minus your current age to estimate your maximum heart rate. From there, Fitbit calculates your fat burning, cardio, and peak heart rates using the following formulas:
- Your Cardio Heart-Rate Zone
- Intensity: Hard (70 to 84 percent of your maximum heart rate)
- Benefit: Builds cardiovascular fitness and muscle strength
- Your Peak Heart-Rate Zone
- Intensity: Vigorous (85 to 100 percent of your maximum heart rate)
- Benefit: Increases performance speed
- Fat Burn
- Intensity: Moderate (50 to 69 percent of your maximum heart rate)
- Benefit: Builds aerobic endurance and teaches the body to burn fat as fuel
Earn Active Zone Minutes throughout your day, not just when engaging in exercise
One of the best features of Fitbit’s active zone is that you earn active zone minutes throughout your day. You earn Active Zone Minutes for each and every minute of activity that hits either the fat burn, cardio, or peak heart-rate zone–regardless of the total length of your activity.
That means you may earn active zone minutes when raking the leaves, performing household chores and housework like vacuuming your home, mowing the lawn, or even climbing up a flight (or two) of stairs.
Conversely, to earn Fitbit Active Minutes, you must first meet the minimum threshold of constantly moving for 10 minutes or more.
And that’s one reason we love Fitbit’s active zone minutes–they are more like us in capturing the long and brief moments of activity, when our heart is elevated and pumping!
Active Zone Minutes are personalized fitness!
Another awesome feature of Fitbit’s active zone minutes is that they personalize to you. Since Fitbit uses your heart rate information, your active zone minutes are personalized based on both your age AND your fitness level.
What sends your heart rate into a fat burn, cardio, or peak heart rate is different from another person–and active zone minutes accounts for that.
How you earn and manage Fitbit’s Active Zone Minutes
You earn your minutes by engaging in moderate to vigorous activity–it’s a simple as that!
As Fitbit monitors your heart rate during that activity, it awards active zone minutes for each minute you maintain in either the fat burn, cardio, or peak heart-rate zone.
Once you start your workout or activity, by default you’ll see a notification on your Fitbit about what active zone you’re exercising in. Additionally, your Fitbit vibrates–the number of times your device buzzes indicates which zone you’re in.
- 1 soft buzz=below fat burning zone (Sense, Versa, & Ionic only)
- 1 buzz=fat burning zone
- 2 buzzes=cardio zone
- 3 buzzes=peak zone
While you get 1 Active Zone Minute each minute in the fat burn zone, you get 2 Active Zone Minutes for each real-time minute in the cardio or peak zone.
Because you earn 2X the actual minutes for intense workouts that hit the cardio or peak heart-rate zones, you may end up earning MORE minutes for your workout than the real workout time.
Intense workouts include activities like running, spinning, uphill cycling, cross-training, and even heavy housework!
For example, if you ride your Peloton for a total of 30 minutes and spent 10 minutes in the fat burn zone and 20 minutes in either the cardio or peak zone, you earn a total of 50 Active Zone Minutes for that 30-minute workout.
That’s almost two times the minutes you actually spent working out!
So if your life runs low on time to devote to exercise, you can actually maximize your activity by getting more in less time.
What about active zone minutes while swimming?
At this time, your water-resistant Fitbit device doesn’t track your heart rate during your swim workouts. Consequently, you only earn at the fat burn rate of 1 Active Zone Minute for each minute of swimming.
Fitbit automatically sets a goal to earn 150 Active Zone Minutes each week.
This number is based on the recommendations of both the American Heart Association and the World Health Organization for healthy adults perform a minimum of 150 minutes of moderate-intensity activity or 75 minutes of vigorous activity, or a combination of both, each week.
That breaks down into a default daily target is 22 minutes.
But it’s flexible, hit that target one day, go over the next, and under on the weekend. The important milestone is your weekly active zone minute target of at least 150 minutes of moderate-intensity activity or 75 minutes of vigorous activity or a combination of both.
How to change your Fitbit’s Active Zone Minutes goal
It’s easy to update your active zone minutes goal in the Fitbit app!
- Open the Fitbit app
- Tap the Today tab
- Scroll down to the GOALS section
- Tap Daily Activity
- Choose Active Zone Minutes
- Update the number to meet your personal goal. Remember these are daily numbers, so if you have a weekly goal in mind, divide it by 7 or the number of days you want to track your activity
How do I know when I’m earning active zone minutes with my Fitbit?
Your Fitbit notifies you and buzzes when your heart rate hits one of these zones and you start earning Active Zone Minutes!
Tired of all these vibrations from your Fitbit?
While some folks love getting these notifications, many are displeased by the constant vibrations on their devices.
Luckily, it’s fairly easy to disable (or enable) these active zone minute notifications on your Fitbit.
How to turn on or off active zone notifications on your Fitbit
- Go to your Fitbit’s Settings app (on the device, not the app or dashboard) and turn on or off Active Zone Minute notifications or Heart Zone Alerts
- In the Exercise app on your Fitbit, find an exercise then swipe up on the arrow and tap Heart Rate Zone Notifications
Review your active zone minutes information
You can see your active zone minutes data in the Fitbit app
- Today tab > Zone Minutes icon
- At the top, tap Week
- Scroll down to see your active zone minutes data
How to delete Active Zone Minutes in the Fitbit app
Be mindful! When you remove any active zone minutes, it can’t be undone.
- Tap the Today tab > Zone Mins (minutes) icon
- Tap the Settings icon (gear symbol) at the top and choose Delete Active Zone Minutes.
- Choose the time period you want to delete Active Zone Minutes from and confirm your changes.
Don’t see Active Zone Minutes for your Fitbit?
If your Fitbit and the Fitbit app or dashboard isn’t showing you active zone minutes, first make sure it is a supported device.
At this time only the Inspire 2, Charge 4, Ionic, Sense, and Versa series offer this feature.
For those with a supported device, you must run Fitbit OS 4.2 or above
To update your Fitbit’s firmware, use the Fitbit app, Fitbit Connect, or Fitbit’s online dashboard
How to update your Fitbit’s firmware and operating system to the latest Fitbit OS
Firmware updates only become available if you allow the Fitbit app to run in the background of your paired mobile device. If you use an older Fitbit OS, you may also need to turn on All Day Syncing in the Fitbit app
- Charge your Fitbit to at least 50%
- Place your Fitbit within range of your paired device and open the Fitbit app
- Tap the Today tab
- Select your profile picture or icon and choose your device Fitbit device from the list
- Tap the pink Update button
- This button only appears if an update is available for your device
- Follow the on-screen instructions and keep the device close to your paired mobile device or computer during the update
- Once the update begins, you should see a progress bar on your device and in the Fitbit app until the update is complete
Want to disable Active Zone Minutes for your Fitbit device? Go back to Active Minutes instead?
Some of our readers are unhappy with this change and would like instead to see their active minutes.
Sadly, at this time there is no way to show active minutes instead of active zone minutes.
If you want to see the real-time you actually exercised for that day, take a look at your Fitbit account’s web dashboard which currently does not show zone minutes.
Wrapping it up
As you might have guessed from this article, Fitbit is moving away Active Minutes to Active Zone Minutes. Fitbit believes that active zone minutes provide users with a better, more data-rich snapshot of how their bodies respond and change with exercise and activity.
We love that Fitbit is adding in this type of fitness personalization based on both fitness level and age. And we think it’s only going to get better and refined as we move forward.