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Heart Rate Zone math

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I just switched from a Charge 3 to a Charge 5 and the heart rate zone numbers jumped up and the math does not match up with the info I found about how each zone is calculated. Screen Shot 2021-12-13 at 1.11.46 PM.png

I am 55 so 220-55=165

Peak would be 140-165

Cardio would be 116-139

Fat Burn would be 83-114

 

However, my new Charge 5 has these numbers:

IMG_6324.jpeg

 

What am I missing?

(And yes, my birthday is entered correctly)

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1 BEST ANSWER

Accepted Solutions

Hello @Whooosh 

 

The Charge 5 also calculates the Zones based on your Resting Heart Rate (measured when you’re asleep) and the numbers for the Zones change based on that too.  

in my case, the lower my Resting Heart Rate, the lower the numbers, and the opposite is true for higher rates.

 

It measures it slightly differently from the Charge 3.  If you tap on Resting Heart Rate and Learn More, it gives more information.  I was hoping to post a link but couldn’t sorry.

 

0969E056-682C-4809-9B4C-F8EF68443676.png

C1E2A1AF-DA84-44A8-B121-75810D22C065.png

Sorry the end is missing, but hopefully you can still get the idea.

 

 I hope that helps a bit.

View best answer in original post

Best Answer
2 REPLIES 2

Hello @Whooosh 

 

The Charge 5 also calculates the Zones based on your Resting Heart Rate (measured when you’re asleep) and the numbers for the Zones change based on that too.  

in my case, the lower my Resting Heart Rate, the lower the numbers, and the opposite is true for higher rates.

 

It measures it slightly differently from the Charge 3.  If you tap on Resting Heart Rate and Learn More, it gives more information.  I was hoping to post a link but couldn’t sorry.

 

0969E056-682C-4809-9B4C-F8EF68443676.png

C1E2A1AF-DA84-44A8-B121-75810D22C065.png

Sorry the end is missing, but hopefully you can still get the idea.

 

 I hope that helps a bit.

Best Answer

OK, I understand the calculation now. Thanks!

 

Best Answer