What 'Cardio Load' Really Means in the Fitbit App

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The Cardio Load calculation, previously only on on the Pixel Watch 3, has now rolled out to all recent Fitbit models (and the other Pixel Watches) without a Fitbit Premium subscription. So what is it, and what exactly does it mean to hit your target? I’ll explain. 

What is cardio load? 

Cardio load is a way of understanding how much exercise you’ve been doing, whether it was logged as a workout or not. Exercising for a longer time...