Nutrients are present in all the fruits but in different quantities. Hence, it is essential to be aware of the nutritional value of fruits before we add them to our health routine. Sour Cherry vs Watermelon Nutrition will help you choose the best fruit among the two. Carbs in Sour Cherry and Watermelon are 12.20 g and 7.55 g respectively. The protein content of Sour Cherry and Watermelon is 1.00 g and 0.61 g. Protein to carb ratio of any fruit must be approximately 1.34. Protein to carb ratio of Sour Cherry is 0.08 and in Watermelon, it is 0.08. Nutritional value of fruits is incomparable to other food items. They provide all the vital nutrients required for proper functioning of our body.