Understanding more about unlocked pda cell phones requires an understanding of  what these terms mean. PDA is an acronym that stands for personal digital assistant, and may also be referred to by the name smartphone. Then there is the matter of locked and unlocked cell phones, which is where things can get confusing. Some people mistake a locked cell phone for one that cannot be used until it is unlocked but that is not the case.

A locked cell phone is one that requires you to use a certain carrier. An unlocked cell phone lets you choose your own service provider. The locked phones only recognize a SIM card from a particular service provider, where the unlocked phones are able to be recognized by most all providers. Unlocked cell phones give the consumer more choice. You can shop around and decide which provider has the features you want in a phone plan at a price you can afford.