![]() Meanwhile, Person B is also a 21-year-old female who is 5’3’’ and weighs 130 pounds, but she works out nearly every day. Say that Person A is a 21-year-old female who is 5’3’’ and weighs 130 pounds, but she does not work out. Due to this fact, the algorithm is automatically guessing calories on a data point that may not be true to your health. As a result, their metabolism will not be the same. Not everyone under the same age, height, gender, and weight classification has the same fitness level. Using the basal metabolic rate is the main reason why fitness trackers are so inaccurate. Basal metabolic rate is different for every person, but it can be estimated based on your age, height, gender, and weight. Your basal metabolic rate is how many calories you burn simply to maintain your vital body functions. So, what kind of factors does Fitbit use to estimate how many calories are burned? Let’s take a look at the most common factors used in these algorithms to estimate calories burned. This algorithm helps to guess how many calories you are burning based on these factors, but it does not give you a definitive answer to how many were burned. These trackers cannot do anything more than give an estimated guess at how many calories you are burning.Įach fitness tracker is created with a certain algorithm that considers a variety of factors that impact calorie burn. ![]() Given that Fitbit and other fitness trackers cost so much money, you are probably wondering why they are often inaccurate. This shows that the Fitbit Surge is much more accurate than other models, including the Fitbit Charge 2, Apple Watch, and more. The same study found that other devices have incredibly high error rates, some as much as 93%. Studies have shown that it has an error rate of slightly over 25%, making it one of the most accurate in the industry.Ī 25% error rate may seem like a lot, but it is much smaller in comparison to other Fitbits and fitness trackers. In fact, the most accurate Fitbit is the Fitbit Surge. ![]() Other studies have found that different Fitbit models tend to be more accurate than others. In the study above, the only Fitbit model that was looked at was the Fitbit Charge 2. Are Some Models More Accurate Than Others? If you are just walking throughout the day and want to know how many calories you burned, however, the Fitbit is less accurate, and you could find a cheaper alternative that more closely estimates the number of calories burned. What does this study tell us about Fitbit’s accuracy? Simply put, it tells us that the Fitbit tends to be more accurate when tracking the number of calories burned from running. At the same time, some of the cheaper options overestimated calories burned from walking by 2%. The cheaper products underestimated the number of calories burned from running by up to 40%. Interestingly, the results were reversed. In the same study, the researchers wanted to compare the accuracy of the Fitbit Charge 2 to cheaper Fitbit trackers on the market. This is incredibly far off from the real results. Most models overestimated the number of calories burned by more than 50%. In contrast, the Fitbit Charge 2 is way less accurate when it comes to measuring the number of calories burned while walking. The Fitbit underestimated the calorie burn by just 4%, which is impressive. ![]() In their studies, they found that the tracker was incredibly accurate when measuring calories burned while running. In a study conducted by researchers at Aberystwyth University, the researchers wanted to know exactly how accurate the Fitbit Charge 2 was. One of the most popular Fitbit models is the Fitbit Charge 2. Other times, Fitbits can underestimate the number of calories burned. Final Thoughts Is Fitbit Calories Burned Accurate?Īll fitness trackers, including Fitbit, tend to overestimate how many calories are burned per day.Should You Still Use A Fitness Tracker?.How Does Fitbit Compare To Other Brands?.How Does Fitbit Track Calories Burned?.Are Some Models More Accurate Than Others?.
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