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The Cardio Load calculation is a metric the Fitbit app uses to suggest how much Pixel Watch and Fitbit users should exercise, but it can be hard to understand. It's also recently been updated for the new version of the app, and it works a bit differently there. Here's how you should use this number, and what it means to hit your target.

What is cardio load?

Cardio load is a way of understanding how much exercise you’ve been doing, whether the app logged it as a workout or not. Exercising for a longer time, and exercising at a higher intensity, both increase your cardio load.

For example, on a day that you go for a five-mile run at an easy pace, you’ll have a higher cardio load in the Fitbit app than a day you ran three miles at an easy

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