Question: what is the size difference between s8 and s9?
Answer: The hint comes from the change in thickness and weight: Galaxy S8 - 148.9 x 68.1 x 8.0 mm ( 5.86 x 2.68 x 0.31-inch), 155g (5.36oz) Galaxy S9 - 147.7 x 68.7 x 8.5 mm (5.81 x 2.70 x 0.33-inch), 163g (5.75 oz)