Etekcity Food Nutrition Kitchen Scale, Digital Grams and Ounces for Weight Loss, Baking, Cooking, Keto and Meal Prep, Large, 304 Stainless Steel

It really depends on what’s in the smoothie, they aren’t all created equal.Smoothies are better than juices though, since you drink all the fiber from the fruits, but you have to calculate the carbs of whatever you put in there. I have a smart kitchen scale so if I weight half an apple I select that I am weighting an apple & it gives me the carbs based on the weight, it comes in handy for things like smoothies. I have This one & this smaller one I take when I travel.