How many short messages can a smart phone store?

Not necessarily, because there are several camps in the operating system of smart phones, such as Symbian, Linux, Windows Mobile, Palm and so on. Some have a fixed number of short messages, such as 300,500 or 1000. But at present, most smart phones store short messages and enjoy the memory of mobile phones, and there is basically no upper limit. After all, a short message takes up very little space.