Honestly, no. Your body fat levels are influenced by a number of factors such as water intake, sodium levels, carbohydrates, etc. A weighing scale can give you a rough estimate which is sometimes way off. However, using a single scale you can track your starting point and follow through your body fat levels to a lower point. At the end of the day, you want to make progress, feel good, and look good. This is why sticking to one scale is important.