ALEVEL Maths calculator

Hi, i'm currently doing edexcel alevel math first year so AS and i was wondering which calculator would be okay to use...
I currently have a classwizz fx 991ex which i used for gcse and igcse edexcel fpm and currently using it and i dont see any issues. BUT a lot of people for alevel math in my school have the graphing one the fx cg50..
are there any major differences in uses like aside from drawing graphs? i don't mind upgrading but i really don't want to if its not worth it or does the same functions as the 991ex. And about graphs, i personally dont find them hard and can manage without drawing them on a calculator. i mean like major differences like if i won't be able to do certain questions if i dont have the function on the 991. also wondering if there are people who have gotten good grades using this calc or regret not buying the graphic one?

no don’t bother getting the one that draws graphs i’d say. i’m in year 13 and have the one you have. works absolutely fine x

hii tysmmm