The magic calulator V5 is the lastest of its type, starting off with acess to an alegbra solver for all you equations, the V4 also allows you to store as many photos and videos as you want. Just by uploading from a moblie device. while having acess to everything the TI-84 plus as to graphing equations, and much more. the V4 also has an eject button incase anything ever goes wrong. you can store unlimited text on the calulatour, aswell as voice messages. the V4 also comes with a bluetooth FM/AM radio if you ever get bored. Enjoy!