Energy use does not start or end with a workout. Understanding active and total calories helps you read daily movement without reducing it to a single figure.
Key takeawayActive calories estimate energy associated with movement, while total calories may also include resting expenditure. They can give context to activity, but are not exact food or exercise targets.
What the total includes
Google explains that Fitbit combines basal metabolic rate with activity to estimate the daily total. This is why calories can already appear after waking: the body also uses energy at rest.
An example of two different figures
If a device shows 400 active kcal and 1,900 total kcal for the same day, that does not necessarily mean 1,500 kcal of activity is missing. Total energy may include resting expenditure. Do not add 400 to 1,900 either: that may count some activity twice. These figures are illustrative, not a personal estimate.
An estimate, not a direct measurement
Wearable energy expenditure is estimated from sensors, algorithms and profile data. Do not treat it as a laboratory measurement or an exact quantity to offset with food.
BIOXS puts your activity in context
BIOXS brings together activity and workouts shared by compatible apps and shows them alongside your sleep and meal diary. That way, you can see how your routine changes over time instead of focusing on one isolated calorie number.
Put this idea into practice with BIOXS
BIOXS brings compatible activity together with sleep and your meal diary to help you see how your routine changes. Calorie figures become one reference within that broader context.
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