Is Fitbit Calorie Burn Accurate

The slightly longer answer: It’s not perfect, but no calorie counter is and Fitbit is likely as good as any. A 2017 study found the Fitbit Surge had a median error of 27 percent when counting calories burned. … However, at a jogging pace, the Fitbit was very accurate, under-predicting energy use by just 4.3 percent.

How much does my Fitbit overestimate calories burned?

The Fitbit Charge 2, which is the best selling fitness tracker on the market, was very accurate in testing calories burned while running, underestimating by 4%. But when measuring walking, it overestimated by more than 50%.

How does Fitbit sense calculate calories burned?

How does my Fitbit device calculate calories burned? Fitbit devices combine your basal metabolic rate (BMR)—the rate at which you burn calories at rest to maintain vital body functions (including breathing, blood circulation, and heartbeat)—and your activity data to estimate your calories burned.