What is the difference between a smartphone, a PDA with phone function, and a Pocket PC with phone function?

The difference lies mostly with the available functions and their design: - A smartphone usually looks like a regular phone (flip phone, candy bar or candy bar with a small QWERTY keyboard), and most smartphones do not come with a touch-screen. Also, smartphones might have screens smaller than PDAs'. - A PDA with phone function (or a Pocket PC with phone function) has a regular palmtop design (often big and/or bulky) and has a touch-screen - they are simply regular PDAs with an onboard phone. In my opinion... If you want a "supercharged phone", you should look into smartphones. If you want a true "mobile office" - or the closest thing to a notebook compter - then you should look into PDAs (with or without phone functions).

ok, pocket and pda are the same thing, and smartphone is a pda with a phone or a cell phone with a pda. the different is on the smartphone u can call ppl and u cant call ppl on the pda, but u might be abel to text message.