[[File:Flip phones.jpg|200px|thumbnail|In some cases, it's easier to tell what is ''not'' a smartphone than to tell what ''is'']]
[[File:Flip phones.jpg|200px|thumbnail|In some cases, it's easier to tell what is ''not'' a smartphone than to tell what ''is'']]
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There is no clearly defined criteria for a smartphone, but in general, the following are expected from one:
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Generically, a smartphone is a cellular telephone which has the ability to perform additional software functions.<ref>https://www.merriam-webster.com/dictionary/smartphone</ref> Beyond this, there is no clearly defined criteria for a smartphone, but in general, the following are expected from one:
*Multitasking - The phone should be able to have multiple programs and functions running simultaneously.
*Multitasking - The phone should be able to have multiple programs and functions running simultaneously.
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*Internet access- even if the service provider does not allow Internet access, the phone should be able to use it.
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*Internet access - even if the service provider does not allow Internet access, the phone should be able to use it.
*Third-party "app" support - The user should be able to install programs of their choice onto the phone.
*Third-party "app" support - The user should be able to install programs of their choice onto the phone.