I was wondering about to buy a graphing/scientific calculator but I have some hesitations. Should I really buy one to make math study better or would buying a smartphone be a better choice? I have an win 8.1 smartphone with 512 mb ram and 4.5-inch screen. Would it be a better choice to buy a math application to use with it? When I update my phone in the future, graphing and calculation power will be most important criteria for choice. I was also wondering that the graphing/scientific calculators are still being sold even though there are lots of very advanced smartphones which have up to 4 GB ram and multicore processing unit (I do not know if they can be classified as CPU and I do not know if they have a GPU or something like that) Which one would be stronger and faster for complex calculations and graphings- smartphones or graphing calculators? I am not an experienced person on this topic. Thank you.