Do you use a fitness tracker to determine the number of calories you have burnt or how rigorous the workout was? Well it may shatter your heart and make you think twice because studies suggest that the monitoring of physical activity may be inaccurate and inconsistent. Also studies says that though you get a good estimate of overall calories burnt by using fitness tracker but it does not accurately measure activities such as strength training. All the consumer fitness activity trackers like Fitbit Goqii and Nike+ FuelBand SE may undervalue the exercise levels. Earlier a study suggested that Fitbit is
